CN103683921B - A kind of control method and control device of staggeredly interconnection booster circuit - Google Patents
A kind of control method and control device of staggeredly interconnection booster circuit Download PDFInfo
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- CN103683921B CN103683921B CN201310676441.9A CN201310676441A CN103683921B CN 103683921 B CN103683921 B CN 103683921B CN 201310676441 A CN201310676441 A CN 201310676441A CN 103683921 B CN103683921 B CN 103683921B
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Abstract
The embodiment of the invention discloses a kind of control method of staggeredly interconnection booster circuit.Methods described is used to realize the control to switching tube in interconnection booster circuit of interlocking, including：At the first moment, control first switch pipe is changed into opening state from off state；When the second coupling inductance is reduced to zero to the mutual inducing current of the first coupling inductance, control second switch pipe is changed into opening state from turning off；After postponing first time period, first switch pipe and second switch pipe is controlled to be become an OFF state in succession by opening state.The embodiment of the present invention additionally provides a kind of control device of staggeredly interconnection booster circuit.Using the embodiment of the present invention, it can realize within a certain period of time, two switching tubes of the circuit simultaneously turn on, and thus reduce the conduction loss of switching tube and diode, improve the whole efficiency of circuit.
Description
Technical field
The present invention relates to uninterrupted power source technical field, more particularly to a kind of control method of staggeredly interconnection booster circuit
And control device.
Background technology
On line type UPS at present（Uninterrupted Power Supply, uninterrupted power source）Mostly use AC-DC
（Alternating Current-Direct Current, AC-DC）、DC-AC（Direct Current-
Alternating Current, DC-AC）Topological structure, wherein AC-DC typically uses APFC（Active Power
Factor Correction, APFC）Mode.Currently used circuit of power factor correction is boost
（Boosting）Circuit.
Reference picture 1, for the structure chart of typical staggeredly interconnection booster circuit.As shown in figure 1, the circuit is by inductance L1 and L2
Coupled, switching tube Q1 and Q2 alternately open shut-off.Leakage inductance L11 and L21 are coupled due to existing, when switching tube turns off
Wait, diode D1 and D2 electric current are slowly kept to 0, in the absence of reverse recovery loss.And when switching tube is opened, due to leakage
The presence of sense, switching tube are that no-voltage is open-minded, and the turn-on consumption of switching tube is 0.Therefore, the entirety of boost circuits is staggeredly interconnected
Efficiency is higher.
But the control method of existing boost circuits, all it is that controlling switch pipe Q1 and Q2 alternately open shut-off, is
Synchronization, switching tube Q1 and Q2 an at most only pipe are open-minded, and inductance LM electric currents all flow through so that the utilization rate of device
Relatively low, the conduction loss and turn-off power loss of its switching tube are all higher, influence the whole efficiency of circuit.
The content of the invention
The embodiments of the invention provide a kind of control method and control device of staggeredly interconnection booster circuit, can realize
In certain time, two switching tubes of the circuit simultaneously turn on, and thus reduce the conduction loss of switching tube and diode, improve electricity
The whole efficiency on road.
On the one hand, there is provided a kind of control method of staggeredly interconnection booster circuit, the circuit include：First coupling inductance,
Second coupling inductance, first switch pipe, second switch pipe, the first diode, the second diode；
After the Same Name of Ends of first coupling inductance and the Same Name of Ends short circuit of second coupling inductance, the electricity is connect together
The positive input terminal on road；
The different name of first coupling inductance terminates the first end of the first switch pipe and the sun of first diode
Pole；The negative input end of the second termination circuit of the first switch pipe；The negative electrode of first diode connects the circuit
Positive output end；
The different name of second coupling inductance terminates the first end of the second switch pipe and the sun of second diode
Pole；The negative input end of the second termination circuit of the second switch pipe；The negative electrode of second diode connects the circuit
Positive output end；
The control method includes：
At the first moment, the first switch pipe is controlled to be changed into opening state from off state；
When second coupling inductance is reduced to zero to the mutual inducing current of first coupling inductance, control described second is opened
Close pipe and be changed into opening state from turning off；
After postponing first time period, the first switch pipe and second switch pipe is controlled to be changed into turning off from opening state in succession
State.
In the first possible implementation of first aspect, the first time period meets：T1/T=DR；Wherein, T1
For first time period, T is the switch periods of the circuit, and DR is the dutycycle of the circuit.
With reference to the possible implementation of the first of first aspect and first aspect, second in first aspect is possible
In implementation, after the delay first time period, the first switch pipe and second switch pipe are controlled in succession by opening state
Become an OFF state for：
After postponing first time period, the first switch pipe is controlled to be become an OFF state by opening state；
The second switch pipe is controlled to be become an OFF state by opening state again.
With reference in a first aspect, in the third possible implementation of first aspect, methods described also includes：
After postponing second time period, the second switch pipe is controlled to be changed into opening state from off state；
When first coupling inductance is reduced to zero to the mutual inducing current of second coupling inductance, control described first is opened
Close pipe and be changed into opening state from turning off；
After postponing for the 3rd period, the first switch pipe and second switch pipe is controlled to be changed into turning off from opening state in succession
State.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect
In,
The first time period and the 3rd period meet：（T1+T3）/T=DR；Wherein, T1 is first time period, and T3 is
3rd period, T are the switch periods of the circuit, and DR is the dutycycle of the circuit；
The second time period meets：T1+2×T2+T3=T；Wherein, T2 is second time period.
With reference to the third and the 4th kind of possible implementation of first aspect, in the 5th kind of possible reality of first aspect
In existing mode, after the delay first time period, the first switch pipe and second switch pipe is controlled to be become in succession by opening state
It is for off state：
After postponing first time period, the second switch pipe is controlled to be become an OFF state by opening state；
The first switch pipe is controlled to be become an OFF state by opening state again.
With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect
In, after the 3rd period of the delay, control the first switch pipe and second switch pipe to be changed into turning off from opening state in succession
State is：
After postponing for the 3rd period, the first switch pipe is controlled to be become an OFF state by opening state；
The second switch pipe is controlled to be become an OFF state by opening state again.
Second aspect, there is provided a kind of control device of staggeredly interconnection booster circuit, the circuit include：First coupling electricity
Sense, the second coupling inductance, first switch pipe, second switch pipe, the first diode, the second diode；
After the Same Name of Ends of first coupling inductance and the Same Name of Ends short circuit of second coupling inductance, the electricity is connect together
The positive input terminal on road；
The different name of first coupling inductance terminates the first end of the first switch pipe and the sun of first diode
Pole；The negative input end of the second termination circuit of the first switch pipe；The negative electrode of first diode connects the circuit
Positive output end；
The different name of second coupling inductance terminates the first end of the second switch pipe and the sun of second diode
Pole；The negative input end of the second termination circuit of the second switch pipe；The negative electrode of second diode connects the circuit
Positive output end；
The control device includes：
First control unit, at the first moment, controlling the first switch pipe to be changed into opening state from off state；
Second control unit, for being reduced to zero to the mutual inducing current of first coupling inductance when second coupling inductance
When, control the second switch pipe to be changed into opening state from turning off；
3rd control unit, after postponing first time period, control the first switch pipe and second switch pipe successive
Become an OFF state by opening state.
In the first possible implementation of second aspect, the first time period meets：T1/T=DR；Wherein, T1
For first time period, T is the switch periods of the circuit, and DR is the dutycycle of the circuit.
In second of possible implementation of second aspect, described device also includes：
4th control unit, after postponing second time period, the second switch pipe is controlled to be changed into out from off state
Logical state；
5th control unit, for being reduced to zero to the mutual inducing current of second coupling inductance when first coupling inductance
When, control the first switch pipe to be changed into opening state from turning off；
6th control unit, after postponing for the 3rd period, control the first switch pipe and second switch pipe successive
Become an OFF state by opening state.
With reference to second of possible implementation of second aspect, in the third possible implementation of second aspect
In, the first time period and the 3rd period meet：（T1+T3）/T=DR；Wherein, T1 is first time period, when T3 is the 3rd
Between section, T be the circuit switch periods, DR be the circuit dutycycle；
The second time period meets：T1+2×T2+T3=T；Wherein, T2 is second time period.
Compared with prior art, control method and device described in the embodiment of the present invention, are enabled to：Completely opened at one
Close in the certain period of time in the cycle, the first switch pipe and second switch pipe can be in opening state simultaneously so that two
The electric current respectively flowed through thereon during individual switching tube conducting reduces, and then current value conduction loss is smaller.And the embodiment of the present invention
In, the first switch pipe and second switch pipe are that no-voltage is open-minded, and its turn-on consumption is zero, first diode and
Second diode does not have reverse recovery loss.It follows that control method and device described in the embodiment of the present invention, can effectively drop
The turn-on consumption of low switch pipe and diode, improve the whole efficiency of circuit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structure chart of typical staggeredly interconnection booster circuit；
Fig. 2 is the equivalent circuit diagram of the shown staggeredly interconnection booster circuits of Fig. 1；
Fig. 3 be the embodiment of the present invention one described in staggeredly interconnection booster circuit control method flow chart；
Fig. 4 is the circuit work-based logic and current waveform figure of control method described in the embodiment of the present invention one；
Fig. 5 be the embodiment of the present invention two described in staggeredly interconnection booster circuit control method flow chart；
Fig. 6 is the circuit work-based logic and current waveform figure of control method described in the embodiment of the present invention two；
Fig. 7 be the embodiment of the present invention one described in staggeredly interconnection booster circuit control device structure chart；
Fig. 8 be the embodiment of the present invention two described in staggeredly interconnection booster circuit control device structure chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiments of the invention provide a kind of control method and control device of staggeredly interconnection booster circuit, can realize
In certain time, two switching tubes of the circuit simultaneously turn on, and thus reduce the conduction loss of switching tube and diode, improve electricity
The whole efficiency on road.
Shown in reference picture 1, typically staggeredly interconnection booster circuit includes：First coupling inductance L1, the second coupling inductance L2,
First switch pipe Q1, second switch pipe Q2, the first diode D1, the second diode D2, electric capacity Co and resistance RL.
Wherein, the first coupling inductance L1 and the second coupling inductance L2 is in parallel.Specifically, the first coupling inductance L1
Same Name of Ends and the second coupling inductance L2 Same Name of Ends short circuit after, connect the positive input terminal of the circuit together.
The different name of the first coupling inductance L1 terminates the first end of the first switch pipe Q1 and first diode
D1 anode；The negative input end of the second termination circuit of the first switch pipe Q1；The negative electrode of the first diode D1
Connect the positive output end of the circuit.
The different name of the second coupling inductance L2 terminates the first end of the second switch pipe Q2 and second diode
D2 anode；The negative input end of the second termination circuit of the second switch pipe Q2；The negative electrode of the second diode D2
Connect the positive output end of the circuit.
The electric capacity Co and resistance RL are simultaneously connected between the positive output end and negative output terminal of the circuit.
It should be noted that in the embodiment of the present invention, the first switch pipe Q1 is identical with second switch pipe Q2 structures.
In practical application, first switch pipe Q1 and second switch the pipe Q2 can have multiple choices, such as can use IGBT
（Insulated Gate Bipolar Transistor, insulated gate bipolar transistor）Either MOSFET（Metal-
Oxide-Semiconductor Field-Effect Transistor, metal-oxide half field effect transistor）.Fig. 1 of the embodiment of the present invention
In be to be illustrated by taking IGBT as an example.
When using IGBT, each switching tube includes a triode and a diode；The current collection of the triode
The negative electrode of pole and the diode connects, and forms the first end of the switching tube；The emitter stage of the triode and two pole
The anode of pipe connects, and forms the second end of the switching tube.
When using MOSFET, each switching tube includes a metal-oxide-semiconductor and a diode；The source electrode of the metal-oxide-semiconductor
Connect with the negative electrode of the diode, form the first end of the switching tube；The drain electrode of the metal-oxide-semiconductor and the sun of the diode
Pole connects, and forms the second end of the switching tube.
Understood with reference to Fig. 1, the positive input terminal and negative input end of the circuit receive input voltage Uin；The circuit is just
Output end and negative output terminal output voltage Uo.
Referring to Fig. 2, for the equivalent circuit diagram for interconnection booster circuit of interlocking shown in Fig. 1.Understood with reference to Fig. 1 and Fig. 2, described the
One coupling inductance L1 and the second coupling inductance L2 can be equivalent to：First inductance LM, the first mutual inductance L11 and the second mutual inductance L21.Its
In, the positive input terminal of the first termination circuit of the first inductance LM, the second termination of the first inductance LM described the
The first end of one mutual inductance L11 first end and the second mutual inductance L21；The second termination first switch of the first mutual inductance L11
Pipe Q1 first end；The second termination second switch pipe Q2 of second mutual inductance L21 first end.
The core thinking of the control method for interconnection booster circuit of interlocking described in the embodiment of the present invention is：A control week
In certain period of time in phase, first switch pipe Q1 and second switch the pipe Q2 is controlled to simultaneously turn on, it is possible thereby to reduce out
The conduction loss of pipe and diode is closed, improves the whole efficiency of circuit.
Reference picture 3, for the flow chart of the control method for interconnection booster circuit of interlocking described in the embodiment of the present invention one.Such as Fig. 3
Shown, methods described comprises the following steps：
301：At the first moment, the first switch pipe Q1 is controlled to be changed into opening state from off state.
302：When the second coupling inductance L2 is reduced to zero to the mutual inducing current of the first coupling inductance L1, institute is controlled
State second switch pipe Q2 and be changed into opening state from turning off.
303：After postponing first time period, first switch pipe Q1 and second switch the pipe Q2 is controlled in succession by opening state
Become an OFF state.
It can be seen that control method described in the embodiment of the present invention one, is enabled to：First in a complete switch periods
In period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that two switching tubes are led
The electric current respectively flowed through thereon when logical reduces, and then current value conduction loss is smaller.So that control described in the embodiment of the present invention
Method processed, the turn-on consumption of switching tube and diode can be effectively reduced, improve the whole efficiency of circuit.
In the embodiment of the present invention one, the first time period meets：T1/T=DR；Wherein, T1 is first time period, and T is institute
The switch periods of circuit are stated, DR is the dutycycle of the circuit.
It should be noted that in step 303, after the delay first time period, the first switch pipe Q1 and the is controlled
Two switching tube Q2 are become an OFF state by opening state in succession to be specifically as follows：After postponing first time period, first described in control
First switch pipe Q1 is become an OFF state by opening state, then, then controls the second switch pipe Q2 to be changed into from opening state
Off state.
Specifically, reference picture 4, for the circuit work-based logic and current waveform of control method described in the embodiment of the present invention one
Figure.Wherein, when Fig. 4 includes first switch pipe Q1, second switch pipe Q2, the first diode D1, the second diode D2 work
Sequence figure, and the first inductance LM（I in Fig. 4LM）, the first mutual inductance L11（IL in Fig. 411）With the second inductance L21（I in Fig. 4L21）'s
Current waveform figure.Abscissa is time shaft in Fig. 4.
As shown in figure 4, t0 to t6 is a complete switch periods, with reference to Fig. 2 and Fig. 4, to the embodiment of the present invention
One control method describes in detail.
The original state of the circuit is：First switch pipe Q1 and second switch the pipe Q2 is turned off, first electricity
Feeling has electric current on LM and the second mutual inductance L21, no electric current on the first mutual inductance L11；Now, the electric current on the first inductance LM and
Electric current on second mutual inductance L21 is equal, and the second diode D2 is in forward conduction state, and the first diode D1 is in reversely cut-off
State.
（1）T0~t1：At the t0 moment, the first switch pipe Q1 is controlled to be changed into opening state from off state.
In this stage, the first switch pipe Q1 is open-minded, and the second switch pipe Q2 is still within off state.Now,
Electric current flow to the circuit by the positive input terminal of the circuit through the first inductance LM, the first mutual inductance L11, first switch pipe Q1
Negative input end.Electric current on first mutual inductance L11 and first switch the pipe Q1（iL11）Begin to ramp up.
Because the first mutual inductance L11 and first switch pipe Q1 connects, the first switch pipe Q1 is no-voltage when opening
Open-minded, its turn-on consumption is zero.
Now, the back-pressure increase recognized on the second mutual inductance L21, flows through on the second mutual inductance L21 and the second diode D2
Electric current accelerate reduce.At the t1 moment, the electric current on the second mutual inductance L21 is flowed through（iL21）Subtract with the electric current on the second diode D2
Small is zero, and the second diode D2 is changed into cut-off state, now, the electric current on the first inductance LM（iLM）Begin to ramp up, due to
The slow vanishing of electric current on second diode D2, so the second diode D2 does not have reverse recovery loss.
（2）T1~t2：The first switch pipe Q1 keeps opening state, and the second switch pipe Q2 is held off.
Now, the first mutual inductance L11（iL11）On electric current continue to increase, the electric current on the second mutual inductance L21
（iL21）It is zero, the electric current on the first inductance LM（iLM）Continue to increase.
（3）T2~t3：At the t2 moment, the second switch pipe Q2 is controlled to be changed into opening state from off state, described
One switching tube Q1 keeps opening state.
Because the first mutual inductance L11 and the second mutual inductance L21 is in parallel, the electric current on the second mutual inductance L21（iL21）With
Electric current on first mutual inductance L11（iL11）Synchronous to increase, the increase in current slope on the first mutual inductance L11 diminishes.In t2
Carve, when the second switch pipe Q2 is opened, because the second switch pipe Q2 connects with the second mutual inductance L21, described second
Switching tube Q2 is that no-voltage is open-minded, and its turn-on consumption is zero.
（4）T3~t4：At the t3 moment, the first switch pipe Q1 is controlled to be become an OFF state by opening state, described
Two switching tube Q2 keep opening state.
Now, the electric current of the first mutual inductance L11（iL11）By the first diode D1 afterflows, electric current iL11 subtracts
It is small.At the t4 moment, electric current iL11 is reduced to zero.Meanwhile second mutual inductance L21 electric current（iL21）Quick increase, the first inductance LM
Electric current（iLM）Increase.At the t4 moment, the electric current of the second mutual inductance L21（iL21）With the electric current of the first inductance LM
（iLM）Unanimously.After the first diode D1 opens a period of time, the electric current on the first diode D1 is with electric current iL11
It is decreased to zero so that the first diode D1 is turned off, and first diode does not have reverse recovery loss.
（5）T4~t5：The second switch pipe Q2 keeps opening state, and the first switch pipe Q1 is held off.
Now, the electric current of the second mutual inductance L21（iL21）Continue to increase, the electric current of the first mutual inductance L11（iL11）
It is zero, the electric current of the first inductance LM（iLM）Continue to increase.
（6）T5~t6：At the t5 moment, the second switch pipe Q2 is controlled to be become an OFF state by opening state, described
One switching tube Q1 is held off.
Because the second switch pipe Q2 is turned off, the electric current of the second mutual inductance L21（iL21）Pass through the two or two pole
Pipe D2 afterflows, the second diode D2 is open-minded, the electric current of the second mutual inductance L21（iL21）With the electricity of the first inductance LM
Stream（iLM）Start to reduce.Because the shut-off of the second switch pipe Q2 is hard shut-off, turn-off power loss be present.
A from the foregoing, complete switch periods for the circuit（T0~t6）, in t2 to t3 periods,
First switch pipe Q1 and second switch the pipe Q2 is in opening state, now, the first switch pipe Q1 and second switch
Pipe Q2 is in parallel relationship, has electric current to flow through thereon.
It should be noted that with reference to shown in Fig. 4, in the embodiment of the present invention one, the first switch pipe Q1 is first open-minded, when
Two mutual inductance L21 electric current（iL21）When being reduced to 0, the second switch pipe Q2 is also open-minded, and（T3-t2）In period,
First switch pipe Q1 and second switch the pipe Q2 is in opening state, then at the t3 moment, the first switch pipe Q1 and
Second switch pipe Q2 is turned off in succession.
The period（T3-t2）Meet：（T3-t2）/T=DR.Wherein, T is the switch periods of the circuit；DR is should
The dutycycle of circuit.
The dutycycle DR of the circuit can be according to the input voltage of the circuit and the occurrence of output voltage, and the electricity
The factors such as the load on road are specifically set.
Understand that in t0 to t2 periods, the first switch pipe Q1 and second switch pipe Q2 are in succession open-minded with reference to Fig. 4；
In t3 to t5 periods, first switch pipe Q1 and second switch the pipe Q2 is turned off in succession.There is the working characteristics of switching device
Understand, the period（T2-t1）And the period（T5-t3）Time is very short, is the switching frequency by switching device, such as open
Close what switch headroom required during device activity determined, the general period is less than the 5% of the contactor cycle T.
In the prior art, synchronization only has that a switching tube is open-minded, and all electric currents can only be from the switching tube opened
On flow through.By comparison, in the embodiment of the present invention one, in first time period, the first switch pipe Q1 and second switch pipe
When Q2 is opened, the two is in parallel, shares total current so that each switching tube（First switch pipe Q1 or second switch pipe Q2）Lead
When logical, the electric current flowed through thereon reduces, and then conduction loss is smaller.And in the embodiment of the present invention, the first switch pipe Q1 and
Second switch pipe Q2 is that no-voltage is open-minded, and its turn-on consumption is zero, and the first diode D1 and the second diode D2 do not have
There is reverse recovery loss.
Therefore, control method described in the embodiment of the present invention one, is enabled to, certain in a complete switch periods
In period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that two switching tubes are led
The electric current respectively flowed through thereon when logical reduces, and then current value conduction loss is smaller.And in the embodiment of the present invention, described first
Switching tube Q1 and second switch pipe Q2 is that no-voltage is open-minded, and its turn-on consumption is zero, the first diode D1 and second
Diode D2 does not have reverse recovery loss.It follows that control method described in the embodiment of the present invention, can effectively reduce switching tube
With the turn-on consumption of diode, the whole efficiency of circuit is improved.
Reference picture 5, for the flow chart of the control method for interconnection booster circuit of interlocking described in the embodiment of the present invention two.Such as Fig. 5
Shown, methods described comprises the following steps：
501：At the first moment, the first switch pipe Q1 is controlled to be changed into opening state from off state.
502：When the second coupling inductance L2 is reduced to zero to the mutual inducing current of the first coupling inductance L1, institute is controlled
State second switch pipe Q2 and be changed into opening state from turning off.
503：After postponing first time period, first switch pipe Q1 and second switch the pipe Q2 is controlled in succession by opening state
Become an OFF state.
504：After postponing second time period, the second switch pipe Q2 is controlled to be changed into opening state from off state.
505：When the first coupling inductance L1 is reduced to zero to the mutual inducing current of the second coupling inductance L2, institute is controlled
State first switch pipe Q1 and be changed into opening state from turning off.
506：After postponing for the 3rd period, first switch pipe Q1 and second switch the pipe Q2 is controlled in succession by opening state
Become an OFF state.
It can be seen that control method described in the embodiment of the present invention two, is enabled to：First in a complete switch periods
In period and the 3rd period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that
The electric current respectively flowed through thereon during two switching tube conductings reduces, and then current value conduction loss is smaller.So that the present invention
Control method described in embodiment, the turn-on consumption of switching tube and diode can be effectively reduced, improve the whole efficiency of circuit.
In the embodiment of the present invention two, the first time period and the 3rd period meet：（T1+T3）/T=DR；Wherein, T1
For first time period, T3 was the 3rd period, and T is the switch periods of the circuit, and DR is the dutycycle of the circuit.Described
Two periods met：T1+2×T2+T3=T；Wherein, T2 is second time period.
It should be noted that in step 503, after the delay first time period, the first switch pipe and second are controlled
Switching tube in succession by opening state become an OFF state for：Postpone first time period after, first, control the second switch pipe by
Opening state becomes an OFF state, and then, then controls the first switch pipe to be become an OFF state by opening state.
In step 506, after the 3rd period of the delay, the first switch pipe and second switch pipe are controlled in succession by opening
Logical state become an OFF state for：After postponing for the 3rd period, first, the first switch pipe is controlled to be changed into closing from opening state
Disconnected state, then, then controls the second switch pipe to be become an OFF state by opening state.
Reference picture 6, it is the circuit work-based logic and current waveform figure of control method described in the embodiment of the present invention two.Wherein,
Fig. 6 includes first switch pipe Q1, second switch pipe Q2, the first diode D1, the second diode D2 working timing figure, and
First inductance LM（I in Fig. 6LM）, the first mutual inductance L11（IL in Fig. 611）With the second inductance L21（I in Fig. 6L21）Current waveform
Figure.Abscissa is time shaft in Fig. 6.
As shown in fig. 6, t0 to t12 is a complete switch periods, with reference to Fig. 2 and Fig. 6 to the embodiment of the present invention
Two control methods describe in detail.
The original state of the circuit is：First switch pipe Q1 and second switch the pipe Q2 is turned off, first electricity
Feeling has electric current on LM and the second mutual inductance L21, no electric current on the first mutual inductance L11；Now, the electric current on the first inductance LM and
Electric current on second mutual inductance L21 is equal, and the second diode D2 is in forward conduction state, and the first diode D1 is in reversely cut-off
State.
（1）T0~t1：At the t0 moment, the first switch pipe Q1 is controlled to be changed into opening state from off state.
In this stage, the first switch pipe Q1 is open-minded, and the second switch pipe Q2 is still within off state.Now,
Electric current flow to the circuit by the positive input terminal of the circuit through the first inductance LM, the first mutual inductance L11, first switch pipe Q1
Negative input end.Electric current on first mutual inductance L11 and first switch the pipe Q1（iL11）Begin to ramp up.
Because the first mutual inductance L11 and first switch pipe Q1 connects, the first switch pipe Q1 is no-voltage when opening
Open-minded, its turn-on consumption is zero.
Now, the back-pressure increase recognized on the second mutual inductance L21, flows through on the second mutual inductance L21 and the second diode D2
Electric current accelerate reduce.At the t1 moment, the electric current on the second mutual inductance L21 is flowed through（iL21）Subtract with the electric current on the second diode D2
Small is zero, and the second diode D2 is changed into cut-off state, now, the electric current on the first inductance LM（iLM）Begin to ramp up, due to
The slow vanishing of electric current on second diode D2, so the second diode D2 does not have reverse recovery loss.
（2）T1~t2：The first switch pipe Q1 keeps opening state, and the second switch pipe Q2 is held off.
Now, the first mutual inductance L11（iL11）On electric current continue to increase, the electric current on the second mutual inductance L21
（iL21）It is zero, the electric current on the first inductance LM（iLM）Continue to increase.
（3）T2~t3：At the t2 moment, the second switch pipe Q2 is controlled to be changed into opening state from off state, described
One switching tube Q1 keeps opening state.
Because the first mutual inductance L11 and the second mutual inductance L21 is in parallel, the electric current on the second mutual inductance L21（iL21）With
Electric current on first mutual inductance L11（iL11）Synchronous to increase, the increase in current slope on the first mutual inductance L11 diminishes.In t2
Carve, when the second switch pipe Q2 is opened, because the second switch pipe Q2 connects with the second mutual inductance L21, described second
Switching tube Q2 is that no-voltage is open-minded, and its turn-on consumption is zero.
（4）T3~t4：At the t3 moment, the second switch pipe Q2 is controlled to be become an OFF state by opening state, described
One switching tube Q1 keeps opening state.
Now, the electric current of the first mutual inductance L11（iL11）By the first diode D1 afterflows, electric current iL11 subtracts
It is small.At the t4 moment, electric current iL11 is reduced to zero.Meanwhile second mutual inductance L21 electric current（iL21）Quick increase, the first inductance LM
Electric current（iLM）Increase.At the t4 moment, the electric current of the second mutual inductance L21（iL21）With the electric current of the first inductance LM
（iLM）Unanimously.After the first diode D1 opens a period of time, the electric current on the first diode D1 is with electric current iL11
It is decreased to zero so that the first diode D1 is turned off, and first diode does not have reverse recovery loss.
（5）T4~t5：The first switch pipe Q1 keeps opening state, and the second switch pipe Q2 is held off.
Now, the electric current of the first mutual inductance L11（iL11）Continue to increase, the electric current of the second mutual inductance L21（iL21）
It is zero, the electric current of the first inductance LM（iLM）Continue to increase.
（6）T5~t6：At the t5 moment, the first switch pipe Q1 is controlled to be become an OFF state by opening state, described
Two switching tube Q2 are held off.
Because the first switch pipe Q1 is turned off, the electric current of the first inductance LM（iLM）Pass through first diode
D1 afterflows, the first diode D1 is open-minded, the electric current of the first mutual inductance L11（iL11）With the electric current of the first inductance LM
（iLM）Start to reduce.Because the shut-off of the first switch pipe Q1 is hard shut-off, turn-off power loss be present.
（7）T6~t7：The second switch pipe Q2 is controlled to be changed into opening state from off state.
In this stage, the second switch pipe Q2 is open-minded, and the first switch pipe Q1 is still within off state.Now,
Electric current flow to the circuit by the positive input terminal of the circuit through the first inductance LM, the second mutual inductance L21, second switch pipe Q2
Negative input end.Electric current on first mutual inductance L21 and second switch the pipe Q2（iL21）Begin to ramp up.
Because the second mutual inductance L21 and second switch pipe Q2 connects, the second switch pipe Q2 is no-voltage when opening
Open-minded, its turn-on consumption is zero.
Now, the back-pressure increase recognized on the first mutual inductance L11, flows through on the first mutual inductance L11 and the first diode D1
Electric current accelerate reduce.At the t7 moment, the electric current on the first mutual inductance L11 is flowed through（iL11）Subtract with the electric current on the first diode D1
Small is zero, and the first diode D1 is changed into cut-off state, now, the electric current on the first inductance LM（iLM）Begin to ramp up, due to
The slow vanishing of electric current on first diode D1, so the first diode D1 does not have reverse recovery loss.
（8）T7~t8：The second switch pipe Q2 keeps opening state, and the first switch pipe Q1 is held off.
Now, the second mutual inductance L21（iL21）On electric current continue to increase, the electric current on the first mutual inductance L11
（iL11）It is zero, the electric current on the first inductance LM（iLM）Continue to increase.
（9）T8~t9：At the t8 moment, the first switch pipe Q1 is controlled to be changed into opening state from off state, described
Two switching tube Q2 keep opening state.
Because the first mutual inductance L11 and the second mutual inductance L21 is in parallel, the electric current on the first mutual inductance L11（iL11）With
Electric current on second mutual inductance L21（iL21）Synchronous to increase, the increase in current slope on the second mutual inductance L21 diminishes.In t8
Carve, when the first switch pipe Q1 is opened, because the first switch pipe Q1 connects with the first mutual inductance L11, described first
Switching tube Q1 is that no-voltage is open-minded, and its turn-on consumption is zero.
（10）T9~t10：At the t9 moment, the first switch pipe Q1 is controlled to be become an OFF state by opening state, it is described
Second switch pipe Q2 keeps opening state.
Now, the electric current of the first mutual inductance L11（iL11）By the first diode D1 afterflows, electric current iL11 subtracts
It is small.At the t10 moment, electric current iL11 is reduced to zero.Meanwhile second mutual inductance L21 electric current（iL21）Quick increase, the first inductance LM
Electric current（iLM）Increase.At the t10 moment, the electric current of the second mutual inductance L21（iL21）With the electric current of the first inductance LM
（iLM）Unanimously.After the first diode D1 opens a period of time, the electric current on the first diode D1 is with electric current iL11
It is decreased to zero so that the first diode D1 is turned off, and first diode does not have reverse recovery loss.
（11）T10~t11：The second switch pipe Q2 keeps opening state, and the first switch pipe Q1 is held off shape
State.
Now, the electric current of the second mutual inductance L21（iL21）Continue to increase, the electric current of the first mutual inductance L11（iL11）
It is zero, the electric current of the first inductance LM（iLM）Continue to increase.
（12）T11~t12：In t:At 11 moment, the second switch pipe Q2 is controlled to be become an OFF state by opening state, institute
First switch pipe Q1 is stated to be held off.
Because the second switch pipe Q2 is turned off, the electric current of the second mutual inductance L21（iL21）Pass through the two or two pole
Pipe D2 afterflows, the second diode D2 is open-minded, the electric current of the second mutual inductance L21（iL21）With the electricity of the first inductance LM
Stream（iLM）Start to reduce.Because the shut-off of the second switch pipe Q2 is hard shut-off, turn-off power loss be present.
A from the foregoing, complete switch periods for the circuit（T0~t12）, in t2 to t3 and t8 to t9
In period, first switch pipe Q1 and second switch the pipe Q2 is in opening state, now, the first switch pipe Q1 and
Second switch pipe Q2 is in parallel relationship, has electric current to flow through thereon.
It should be noted that with reference to shown in Fig. 6, in the embodiment of the present invention two, the first switch pipe Q1 is first open-minded, when
Two mutual inductance L21 electric current（iL21）When being reduced to 0, the second switch pipe Q2 is also open-minded, and（T3-t2）In period,
First switch pipe Q1 and second switch the pipe Q2 is in opening state, then at the t3 moment, the first switch pipe Q1 and
Second switch pipe Q2 is turned off in succession.
Then, by certain time, the second switch pipe Q2 is open-minded again, when the first mutual inductance L11 electric current（iL11）Drop
For 0 when, the first switch pipe Q1 is also open-minded, and（T9-t8）In period, the first switch pipe Q1 and second switch
Pipe Q2 is in opening state, is then turned off in succession in t9 moment, second switch pipe Q2 and first switch the pipe Q1.
The period（T3-t2）With（T9-t8）Meet：（T3-t2+t9-t8）/T=DR.Wherein, T is the circuit
Switch periods；DR is the dutycycle of the circuit.
Understand that in t0 to t2 periods, the first switch pipe Q1 and second switch pipe Q2 are in succession open-minded with reference to Fig. 6；
In t3 to t5 periods, first switch pipe Q1 and second switch the pipe Q2 is turned off in succession.There is the working characteristics of switching device
Understand, the period（T2-t1）And the period（T5-t3）Time is very short, is the switching frequency by switching device, such as open
Close what switch headroom required during device activity determined, the general period is less than the 5% of the contactor cycle T.
Likewise, in t6 to t8 periods, the second switch pipe Q2 and first switch pipe Q1 are in succession open-minded；In t9 extremely
In the t11 periods, second switch pipe Q2 and first switch the pipe Q1 is turned off in succession.Knowable to the working characteristics for having switching device,
The period（T8-t6）And the period（T11-t9）Time is very short, is the switching frequency by switching device, such as derailing switch
Part switch headroom required when acting determines that the general period is less than the 5% of the contactor cycle T.
In the prior art, synchronization only has that a switching tube is open-minded, and all electric currents can only be from the switching tube opened
On flow through.By comparison, in the embodiment of the present invention two, in certain period of time, the first switch pipe Q1 and second switch pipe
When Q2 is opened, the two is in parallel, shares conducting electric current so that each switching tube（First switch pipe Q1 or second switch pipe Q2）
During conducting, the electric current flowed through thereon reduces, and then current value conduction loss is smaller.And in the embodiment of the present invention, described first opens
It is that no-voltage is open-minded to close pipe Q1 and second switch pipe Q2, and its turn-on consumption is zero, the first diode D1 and the two or two
Pole pipe D2 does not have reverse recovery loss.
Therefore, control method described in the embodiment of the present invention two, is enabled to, certain in a complete switch periods
In period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that two switching tubes are led
The electric current respectively flowed through thereon when logical reduces, and then current value conduction loss is smaller.And in the embodiment of the present invention, described first
Switching tube Q1 and second switch pipe Q2 is that no-voltage is open-minded, and its turn-on consumption is zero, the first diode D1 and second
Diode D2 does not have reverse recovery loss.It follows that control method described in the embodiment of the present invention, can effectively reduce switching tube
With the turn-on consumption of diode, the whole efficiency of circuit is improved.
Visible with reference to Fig. 3 and Fig. 4, the difference of the embodiment of the present invention two and embodiment one is：
In the embodiment of the present invention one, the first switch pipe Q1 is first open-minded, and subsequent second switch pipe Q2 is open-minded again.It is corresponding
, at the t3 moment, the first switch pipe Q1 is also first turned off, and the subsequent second switch pipe Q2 is turned off again.
And in the embodiment of the present invention two, the first switch pipe Q1 is first open-minded, and subsequent second switch pipe Q2 is open-minded again.But
It is to be first turned off in t3 moment, the second switch pipe Q2, the subsequent first switch pipe Q1 is turned off again.And at the t6 moment, it is described
Second switch pipe Q2 is first open-minded, and subsequent first switch pipe Q1 is open-minded again.But at the t9 moment, first switch pipe Q1 is first turned off, then
Second switch pipe Q2 is turned off again.
As can be seen here, for the embodiment of the present invention, it is only necessary to ensure first switch pipe Q1 and second switch the pipe Q2
After opening in succession, after two switching tubes keep opening state certain period of time simultaneously, then two switching tubes are turned off in succession.
First open-minded as which switching tube, which switching tube is first turned off, and need not specifically be limited.
Corresponding to the control method of the staggeredly interconnection booster circuit described in the embodiment of the present invention, the embodiment of the present invention also provides
A kind of control device of staggeredly interconnection booster circuit.
Reference picture 7, it is the structure chart of the staggeredly control device of interconnection booster circuit described in the embodiment of the present invention one.Such as figure
Shown in 7, described device can include：First control unit 701, the second control unit 702 and the 3rd control unit 703.
First control unit 701, at the first moment, controlling the first switch pipe Q1 to be changed into from off state
Opening state；
Second control unit 702, for when the second coupling inductance L2 is to the mutual of the first coupling inductance L1
When inducing current is reduced to zero, the second switch pipe Q2 is controlled to be changed into opening state from turning off；
3rd control unit 703, after postponing first time period, the first switch pipe Q1 and second is controlled to open
Pipe Q2 is closed to be become an OFF state by logical state in succession.
It can be seen that control device described in the embodiment of the present invention one, is enabled to：First in a complete switch periods
In period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that two switching tubes are led
The electric current respectively flowed through thereon when logical reduces, and then current value conduction loss is smaller.So that control described in the embodiment of the present invention
Method processed, the turn-on consumption of switching tube and diode can be effectively reduced, improve the whole efficiency of circuit.
In the embodiment of the present invention one, the first time period meets：T1/T=DR；Wherein, T1 is first time period, and T is institute
The switch periods of circuit are stated, DR is the dutycycle of the circuit.
It should be noted that the 3rd control unit 703, after postponing first time period, controls described first
One switching tube Q1 is become an OFF state by opening state, then, then controls the second switch pipe Q2 to be changed into closing from opening state
Disconnected state.
Reference picture 8, it is the structure chart of the staggeredly control device of interconnection booster circuit described in the embodiment of the present invention two.Such as figure
Shown in 8, described device can include：First control unit 801, the second control unit 802, the control of the 3rd control unit the 803, the 4th
Unit 804, the 5th control unit 805 and the 6th control unit 806 processed.
First control unit 801, at the first moment, controlling the first switch pipe Q1 to be changed into from off state
Opening state.
Second control unit 802, for when mutual inductance of second coupling inductance to the first coupling inductance L1
When electric current is reduced to zero, the second switch pipe Q2 is controlled to be changed into opening state from turning off.
3rd control unit 803, after postponing first time period, the first switch pipe Q1 and second is controlled to open
Pipe Q2 is closed to be become an OFF state by logical state in succession.
4th control unit 804, after postponing second time period, the second switch pipe Q2 is controlled by shut-off shape
State is changed into opening state.
5th control unit 805, for when the first coupling inductance L1 is to the mutual of the second coupling inductance L2
When inducing current is reduced to zero, the first switch pipe Q1 is controlled to be changed into opening state from turning off.
6th control unit 806, after postponing for the 3rd period, the first switch pipe Q1 and second is controlled to open
Pipe Q2 is closed to be become an OFF state by opening state in succession.
It can be seen that control device described in the embodiment of the present invention two, is enabled to：First in a complete switch periods
In period and the 3rd period, first switch pipe Q1 and second switch the pipe Q2 can be in opening state simultaneously so that
The electric current respectively flowed through thereon during two switching tube conductings reduces, and then current value conduction loss is smaller.So that the present invention
Control method described in embodiment, the turn-on consumption of switching tube and diode can be effectively reduced, improve the whole efficiency of circuit.
In the embodiment of the present invention two, the first time period and the 3rd period meet：（T1+T3）/T=DR；Wherein, T1
For first time period, T3 was the 3rd period, and T is the switch periods of the circuit, and DR is the dutycycle of the circuit；Described
Two periods met：T1+2×T2+T3=T；Wherein, T2 is second time period.
It should be noted that the 3rd control unit 803, after postponing first time period, first, control described the
Two switching tube Q2 are become an OFF state by opening state, then, then control the first switch pipe Q1 to be changed into closing from opening state
Disconnected state.
6th control unit 806, for postpone the 3rd period after, first, control the first switch pipe Q1 by
Opening state becomes an OFF state, and then, then controls the second switch pipe Q2 to be become an OFF state by opening state.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment（Can be
People's computer, server, or network equipment etc.）Or processor（processor）Perform side described in each embodiment of the present invention
The all or part of step of method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only
Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (2)
1. a kind of control method of staggeredly interconnection booster circuit, it is characterised in that the circuit includes：First coupling inductance,
Two coupling inductances, first switch pipe, second switch pipe, the first diode, the second diode；
After the Same Name of Ends of first coupling inductance and the Same Name of Ends short circuit of second coupling inductance, the circuit is connect together
Positive input terminal；
The different name of first coupling inductance terminates the first end of the first switch pipe and the anode of first diode；Institute
State the negative input end of the second termination circuit of first switch pipe；The negative electrode of first diode connects the just defeated of the circuit
Go out end；
The different name of second coupling inductance terminates the first end of the second switch pipe and the anode of second diode；Institute
State the negative input end of the second termination circuit of second switch pipe；The negative electrode of second diode connects the just defeated of the circuit
Go out end；
The control method includes：
At the first moment, the first switch pipe is controlled to be changed into opening state from off state；
When second coupling inductance is reduced to zero to the mutual inducing current of first coupling inductance, the second switch pipe is controlled
Opening state is changed into from shut-off；
After postponing first time period, the first switch pipe and second switch pipe is controlled to be changed into turning off shape from opening state in succession
State；
After the delay first time period, the first switch pipe and second switch pipe is controlled to be changed into turning off from opening state in succession
State is：
Postpone first time period when the second switch pipe is changed into opening state from turning off, after the delay first time period,
The second switch pipe is controlled to be become an OFF state by opening state；The first switch pipe is controlled to be changed into closing from opening state again
Disconnected state；
Methods described also includes：
Postpone second time period, the delay second time period when the first switch pipe is become an OFF state by opening state
Afterwards, the second switch pipe is controlled to be changed into opening state from off state；
When first coupling inductance is reduced to zero to the mutual inducing current of second coupling inductance, the first switch pipe is controlled
Opening state is changed into from shut-off；
Postponed for the 3rd period when the first switch pipe is changed into opening state from turning off, after postponing for the 3rd period, control
The first switch pipe is become an OFF state by opening state；
When the electric current of first coupling inductance is reduced to zero, then the second switch pipe is controlled to be changed into turning off shape from opening state
State.
2. a kind of control device of staggeredly interconnection booster circuit, it is characterised in that the circuit includes：First coupling inductance,
Two coupling inductances, first switch pipe, second switch pipe, the first diode, the second diode；
After the Same Name of Ends of first coupling inductance and the Same Name of Ends short circuit of second coupling inductance, the circuit is connect together
Positive input terminal；
The different name of first coupling inductance terminates the first end of the first switch pipe and the anode of first diode；Institute
State the negative input end of the second termination circuit of first switch pipe；The negative electrode of first diode connects the just defeated of the circuit
Go out end；
The different name of second coupling inductance terminates the first end of the second switch pipe and the anode of second diode；Institute
State the negative input end of the second termination circuit of second switch pipe；The negative electrode of second diode connects the just defeated of the circuit
Go out end；
The control device includes：
First control unit, at the first moment, controlling the first switch pipe to be changed into opening state from off state；
Second control unit, for when second coupling inductance is reduced to zero to the mutual inducing current of first coupling inductance,
The second switch pipe is controlled to be changed into opening state from turning off；
3rd control unit, after postponing first time period, the first switch pipe and second switch pipe are controlled in succession by opening
Logical state becomes an OFF state；
Wherein, the 3rd control unit, specifically for postponing when the second switch pipe is changed into opening state from turning off
One period, it is described delay first time period after, control the second switch pipe to be become an OFF state by opening state；Control again
The first switch pipe is become an OFF state by opening state；
Described device also includes：
4th control unit, for postponing second time period when the first switch pipe is become an OFF state by opening state,
After the delay second time period, the second switch pipe is controlled to be changed into opening state from off state；
5th control unit, for when first coupling inductance is reduced to zero to the mutual inducing current of second coupling inductance,
The first switch pipe is controlled to be changed into opening state from turning off；
6th control unit, for postponing for the 3rd period when the first switch pipe is changed into opening state from turning off, delay
After 3rd period, the first switch pipe is controlled to be become an OFF state by opening state；When the electricity of first coupling inductance
When stream is reduced to zero, then the second switch pipe is controlled to be become an OFF state by opening state.
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| CN106817037A (en) * | 2015-12-01 | 2017-06-09 | 艾默生网络能源有限公司 | The control method and device of one species Vienna tri-level circuit |
| CN106817038A (en) * | 2015-12-01 | 2017-06-09 | 艾默生网络能源有限公司 | A kind of control method and device of I types tri-level circuit |
| CN106849653A (en) * | 2015-12-04 | 2017-06-13 | 纬创资通（中山）有限公司 | Booster circuit |
| CN108880247B (en) * | 2017-05-16 | 2021-09-07 | 马克西姆综合产品公司 | DC-to-DC converter supporting continuous conduction mode, and associated method |
| JP6819525B2 (en) * | 2017-09-20 | 2021-01-27 | トヨタ自動車株式会社 | Power conversion circuit |
| JP2019057991A (en) * | 2017-09-20 | 2019-04-11 | トヨタ自動車株式会社 | DC-DC converter |
| JP2019057993A (en) * | 2017-09-20 | 2019-04-11 | トヨタ自動車株式会社 | Power inverter circuit |
| CN108900083B (en) | 2018-06-05 | 2020-09-18 | 华为技术有限公司 | Power converter and related system |
| TWI682617B (en) * | 2018-06-28 | 2020-01-11 | 崑山科技大學 | Interleaved ultra-high boost converter |
| JP6888601B2 (en) * | 2018-11-13 | 2021-06-16 | トヨタ自動車株式会社 | Control methods for bidirectional power converters, electric vehicles, and bidirectional power converters |
| CN109698622A (en) * | 2019-02-27 | 2019-04-30 | 青岛大学 | Eliminate crisscross parallel Boost circuit, the system and method for booster circuit diode losses |
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| CN100334797C (en) * | 2004-07-08 | 2007-08-29 | 浙江大学 | Boost type active interlaced parallel soft switch circuit |
| JP4995640B2 (en) * | 2007-06-05 | 2012-08-08 | 株式会社ダイヘン | Boost chopper device |
| US8681519B2 (en) * | 2011-03-04 | 2014-03-25 | Astec International Limited | Variable input voltage PFC circuits, systems and power supplies with phase shifted power rails |
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