CN206506442U - A kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC - Google Patents
A kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC Download PDFInfo
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- CN206506442U CN206506442U CN201720048949.8U CN201720048949U CN206506442U CN 206506442 U CN206506442 U CN 206506442U CN 201720048949 U CN201720048949 U CN 201720048949U CN 206506442 U CN206506442 U CN 206506442U
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Abstract
The utility model discloses a kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC, it includes input block；Vienna PFC boost unit, includes boost inductance, first switch pipe, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the first electrochemical capacitor and the second electrochemical capacitor；Semi-bridge inversion unit, include second switch pipe, the 3rd switching tube, the 3rd electrochemical capacitor, the 4th electrochemical capacitor and filter inductance, the positive pole of 4th electrochemical capacitor as semi-bridge inversion unit the first output end, the source electrode of the second switch pipe is connected to the front end of filter inductance, the rear end of the filter inductance as semi-bridge inversion unit the second output end.The utility model can improve output voltage quality, reduces high-frequency crosstalk and save circuit cost.
Description
Technical field
The utility model is related to voltage conversion circuit, more particularly to a kind of intelligent half-bridge sine based on Vienna PFC
Wave voltage change-over circuit.
Background technology
In the prior art, it is otherwise known as travelling insert row by the AC intelligent boost-buck conversion equipments for turning AC, in the device, voltage
Change-over circuit is its Key Circuit, be it is a kind of can realize AC-AC conversion circuit, can AC-AC conversion in realize buck
And the function of burning voltage and frequency.But most of current AC-AC portable sets market is using complicated topological circuit
Structure, involved unit module is more, and not only cost is higher, and PF values are low, output voltage quality is low, security reliability
Difference.In practical application, due to there is the switching of the high speed of switching tube during voltage conversion so that the outlet side of circuit can have one
Fixed high-frequency pulse signal, and then the quality of output voltage is influenceed, thus be difficult to meet conversion requirements.
Utility model content
The technical problems to be solved in the utility model is, can simplify circuit there is provided one kind in view of the shortcomings of the prior art
Structure, high-frequency crosstalk can be filtered out, PF values, raising output voltage quality is improved, and the cost-effective intelligence based on Vienna PFC
Can type half-bridge sine voltage change-over circuit.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that.
A kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC, it includes：One input block,
For accessing power network alternating current；One Vienna PFC boost unit, include boost inductance, first switch pipe, the first diode,
Second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the first electrochemical capacitor and the second electrolysis
Electric capacity, the front end of the boost inductance is connected to the first output end of input block, and the rear end of the boost inductance is connected to
The negative electrode of the anode of one diode and the second diode, the drain electrode of the first switch pipe and the negative electrode of the 3rd diode are all connected with
In the negative electrode of the first diode, the source electrode of the first switch pipe and the anode of the 4th diode are all connected to the second diode
Anode, the grid of the first switch pipe is used to access pwm pulse signal, and the anode of the 5th diode is connected to the three or two
The negative electrode of pole pipe, the negative electrode of the 5th diode is connected to the positive pole of the first electrochemical capacitor, first electrochemical capacitor it is negative
Pole is connected to the positive pole of the second electrochemical capacitor, and the negative electrode of the 6th diode is connected to the anode of the 4th diode, described
The anode of six diodes is connected to the second electrochemical capacitor negative pole, negative electrode, the positive pole of the second electrochemical capacitor of the 4th diode
It is connected with the second output end of input block and the tie point is as holding altogether, the positive pole of first electrochemical capacitor is used as dimension
Also receive the output head anode of PFC boost unit, the negative pole of second electrochemical capacitor as Vienna PFC boost unit output
Hold negative pole；One half-bridge inversion unit, include second switch pipe, the 3rd switching tube, the 3rd electrochemical capacitor, the 4th electrochemical capacitor and
Filter inductance, the drain electrode of the second switch pipe and the positive pole of the 3rd electrochemical capacitor are all connected to Vienna PFC boost unit
Output head anode, the source electrode of the second switch pipe is connected to the drain electrode of the 3rd switching tube, the source electrode of the 3rd switching tube and
The negative pole of 4th electrochemical capacitor is all connected to the negative pole of output end of Vienna PFC boost unit, the grid of the second switch pipe
It is respectively used to access pwm control signal with the grid of the 3rd switching tube, to make the second switch pipe and the 3rd switching tube replace
Conducting, the negative pole of the 3rd electrochemical capacitor and the positive pole of the 4th electrochemical capacitor are all connected to holding altogether, and the 4th electrolysis electricity
The positive pole of appearance is as the first output end of semi-bridge inversion unit, and the source electrode of the second switch pipe is connected to before filter inductance
End, the rear end of the filter inductance as semi-bridge inversion unit the second output end.
Preferably, the input block includes socket, the first insurance, lightning protection resistance, common mode inhibition inductance and safety electricity
Hold, first insurance is serially connected with the zero line of socket or live wire, and the front end of the common mode inhibition inductance is parallel to socket, described
Lightning protection resistance is parallel to the front end of common mode inhibition inductance, and the safety electric capacity is parallel to the rear end of common mode inhibition inductance, and described
The rear end of common mode inhibition inductance as input block output end.
Preferably, a control unit is also included, the grid of the first switch pipe is connected to control unit, the control
Unit is used to load pwm pulse signal to the grid of first switch pipe.
Preferably, described control unit includes single-chip microcomputer and its peripheral circuit.
Preferably, the source electrode of the 3rd switching tube is serially connected with current-limiting resistance, and the source electrode of the 3rd switching tube is connected to
Control unit, to make described control unit gather the electric signal of the 3rd switching tube source electrode.
Preferably, the second insurance is also included, second insurance is serially connected with the first output end of semi-bridge inversion unit.
Preferably, a voltage sampling unit is also included, the voltage sampling unit includes first be sequentially connected in series and adopted
Sample resistance and the second sampling resistor, the front end of first sampling resistor are connected to the drain electrode of second switch pipe, and described second adopts
The rear end of sample resistance is connected to control unit, to make described control unit gather the electric signal of second switch pipe drain electrode.
Preferably, an AC sampling unit is also included, the AC sampling unit is connected to the input of input block
Between control unit, the AC sampling unit is used to gather the voltage of input block AC and feeds back to control unit.
Preferably, the AC sampling unit includes amplifier, and two inputs of the amplifier pass through current limliting electricity respectively
The input of input block is hindered and is connected to, the output end of the amplifier is connected to control unit.
Preferably, it is connected with pull down resistor between the grid and source electrode of the first switch pipe.
In intelligent half-bridge sine voltage change-over circuit based on Vienna PFC disclosed in the utility model, work as input
When unit is by alternating current transmission to Vienna PFC boost unit, Vienna PFC boost unit enters boost mode, and by adjusting
The dutycycle of the pwm signal of whole first switch tube grid adjusts its ON time so that the exchange of voltage conversion circuit output
Electricity is consistent with electric current, the voltage-phase of input side, to improve the PF values of conversion topologies circuit.Based on said structure, this practicality is new
Type not only increases the PF values of voltage conversion circuit, also improves output voltage quality so that voltage conversion process is safer
Reliably.The utility model voltage conversion circuit is simple in construction simultaneously, and involved unit module is less, not only reduces product
Fault rate, and save small product size, reduce product cost.On this basis, half-bridge can be filtered out using filter inductance
High-frequency impulse in inversion unit output signal so that load results in the power frequency sinusoidal ac of high-quality, and then improves defeated
Go out quality of voltage, to meet power demands.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model sine voltage change-over circuit.
Fig. 2 is the circuit theory diagrams of AC sampling unit in the utility model preferred embodiment.
Fig. 3 is the circuit theory diagrams of control unit in the utility model preferred embodiment.
Embodiment
The utility model is described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC, with reference to
Shown in Fig. 1 to Fig. 3, it includes：
One input block 10, for accessing power network alternating current；
One Vienna PFC boost unit 20, includes boost inductance L2, first switch pipe Q3, the first diode D1, second
Diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the first electrochemical capacitor C1 and
Second electrochemical capacitor C2, boost inductance L2 front end is connected to the first output end of input block 10, the boost inductance
L2 rear end is connected to the first diode D1 anode and the second diode D2 negative electrode, the drain electrode of the first switch pipe Q3 and
3rd diode D3 negative electrode is all connected to the first diode D1 negative electrode, the source electrode of the first switch pipe Q3 and the four or two pole
Pipe D4 anode is all connected to the second diode D2 anode, and the grid of the first switch pipe Q3 is used to access pwm pulse letter
Number, the anode of the 5th diode D5 is connected to the 3rd diode D3 negative electrode, the negative electrode connection of the 5th diode D5
In the first electrochemical capacitor C1 positive pole, the negative pole of the first electrochemical capacitor C1 is connected to the second electrochemical capacitor C2 positive pole, institute
The negative electrode for stating the 6th diode D6 is connected to the 4th diode D4 anode, and the anode of the 6th diode D6 is connected to second
Electrochemical capacitor C2 negative poles, the negative electrode of the 4th diode D4, the second of the second electrochemical capacitor C2 positive pole and input block 10
Output end is connected and the tie point is as holding altogether, and the positive pole of the first electrochemical capacitor C1 is used as Vienna PFC boost list
The output head anode of member 20, the negative pole of the second electrochemical capacitor C2 as Vienna PFC boost unit 20 negative pole of output end；
One half-bridge inversion unit 30, includes second switch pipe Q1, the 3rd switching tube Q2, the 3rd electrochemical capacitor C3, the 4th
Electrochemical capacitor C4 and filter inductance L3, the second switch pipe Q1 drain electrode and the 3rd electrochemical capacitor C3 positive pole are all connected to dimension
Also the output head anode of PFC boost unit 20 is received, the source electrode of the second switch pipe Q1 is connected to the 3rd switching tube Q2 drain electrode,
The source electrode of the 3rd switching tube Q2 and the 4th electrochemical capacitor C4 negative pole are all connected to the output of Vienna PFC boost unit 20
Negative pole is held, the grid of the second switch pipe Q1 and the 3rd switching tube Q2 grid are respectively used to access pwm control signal, to make
The second switch pipe Q1 and the 3rd switching tube Q2 alternate conductions, the negative pole and the 4th electrochemical capacitor of the 3rd electrochemical capacitor C3
C4 positive pole is all connected to holding altogether, and the 4th electrochemical capacitor C4 positive pole is exported as the first of semi-bridge inversion unit 30
End, the source electrode of the second switch pipe Q1 is connected to filter inductance L3 front end, and the rear end of the filter inductance L3 is used as half-bridge
Second output end of inversion unit 30.
In above-mentioned sine voltage change-over circuit, when input block 10 is by alternating current transmission to Vienna PFC boost unit
When 20, Vienna PFC boost unit enters boost mode, to improve the PF values of conversion topologies circuit, passes through the first electricity after boosting
It is positive and negative busbar voltage to solve electric capacity C1 and the second filtered voltages of electrochemical capacitor C2, and specific boosting principle is as follows：Work as input
When the alternating voltage that unit 10 is exported is upper just lower negative, when first switch pipe Q3 is turned on, the output of the output end of input block 10 first
The boosted inductance L2 of electric current, the first diode D1, first switch pipe Q3, the 4th diode D4, input block 10 it is second defeated
Go out end and form loop, boost inductance L2 storage energy；When first switch pipe Q3 is turned off, the energy of boost inductance L2 releases is through the
One diode D1, the 5th diode D5, the first electrochemical capacitor C1, input block 10 return boost inductance L2 front end, so
The induced voltage that boost inductance L2 is produced can be on the first electrochemical capacitor C1 after the first diode D1, the 5th diode D5 rectifications
Just lower negative DC voltage in formation.When the alternating voltage that input block 10 is exported is upper negative lower timing, first switch pipe Q3 is led
It is logical, it is the boosted inductance L2 of electric current that input block 10 is exported, the second diode D2, first switch pipe Q3, the 3rd diode D3, defeated
Enter the formation of unit 10 loop, boost inductance L2 storage energy；When first switch pipe Q3 is turned off, the energy of boost inductance L2 releases
Boost inductance L2 is returned through the second diode of continued flow tube D2, the 6th diode D6, the second electrochemical capacitor C2, input block 10,
So boost inductance L2 can be in the second electrolysis electricity after the second diode D2, the 6th diode D6 rectifications by the induced voltage of generation
Hold and just lower negative DC voltage is formed on C2.Because the first electrochemical capacitor C1 and the second electrochemical capacitor C2 connect, so the
The voltage of one electrochemical capacitor C1 positive pole formation is that the intermediate point relative to the first electrochemical capacitor C1 and the second electrochemical capacitor C2 is
Positive voltage, is relative to the first electrochemical capacitor C1 and the second electrochemical capacitor in the voltage of the second electrochemical capacitor C2 negative pole formation
C2 intermediate point is negative voltage.When being turned on by the dutycycle for the pwm signal for adjusting first switch pipe Q3 grids to adjust it
Between so that the alternating current of voltage conversion circuit output is with electric current, the voltage-phase of input side consistent to improve PF values.Based on above-mentioned
Structure, the utility model not only increases the PF values of voltage conversion circuit, also improves output voltage quality so that voltage conversion
Process is more safe and reliable.The utility model voltage conversion circuit is simple in construction simultaneously, and involved unit module is less, no
The fault rate of product is reduced by only, and saves small product size, product cost is reduced.On this basis, filtered electrical is utilized
Sense L3 can filter out the high-frequency impulse in semi-bridge inversion element output signal so that load results in the power frequency simple alternating current of high-quality
Electricity, and then output voltage quality is improved, to meet power demands.Further, the grid and source electrode of the first switch pipe Q3
Between be connected with pull down resistor R22.
It is second switch pipe Q1, filter inductance L3, negative when second switch pipe Q1 is turned in above-mentioned semi-bridge inversion unit 30
Carry, the 3rd electrochemical capacitor C3 forms loop, produce first high-frequency impulse level to load, when second switch pipe Q1 is closed,
Pass through the 4th electrochemical capacitor C4, the 3rd switching tube Q2 body diode, filter inductance L3 formation continuous current circuits；When the 3rd switching tube
By the 3rd switching tube Q2, the 4th electrochemical capacitor C4, load, filter inductance L3 formation loop when Q2 is turned on, with regard to shape in load
Into second high-frequency impulse level, when the 3rd switching tube Q2 is turned off, second switch pipe Q1 body diode, the 3rd electrolysis electricity
Hold C3, load, filter inductance L3 formation continuous current circuits.Second switch pipe Q1, the 3rd switching tube Q2 high-frequency drive pwm signal are
Give second switch pipe Q1, the 3rd switching tube Q2 GATE poles again after power frequency modulation variation.Due to second switch pipe Q1, the 3rd
Switching tube Q2 is the drive signal after power frequency modulation, so filtered inductance L3 filters out the high-frequency impulse level after inversion and left behind
Power frequency sinusoidal voltage, powering load.The 3rd electrochemical capacitor C3, the 4th electrochemical capacitor C4 also have the effect of filtering simultaneously.
Phase in inversion phase inverter is operated with frequency according to the pattern of control chip inner setting.The control letter of this inverter circuit
Single, circuit is with low cost only with two metal-oxide-semiconductors.
On importation, the input block 10 includes socket, the first insurance F2, lightning protection resistance RV1, common mode inhibition
Inductance L1 and safety electric capacity CX1, described first, which insures F2, is serially connected with the zero line of socket or live wire, the common mode inhibition inductance L1
Front end be parallel to socket, the lightning protection resistance RV1 is parallel to common mode inhibition inductance L1 front end, and the safety electric capacity CX1 is simultaneously
Be coupled to common mode inhibition inductance L1 rear end, and the common mode inhibition inductance L1 rear end as input block 10 output end.
As a kind of preferred embodiment, Fig. 3 is refer to, the present embodiment also includes a control unit 60, the first switch
Pipe Q3 grid is connected to control unit 60, and described control unit 60 is used to load pwm pulse to first switch pipe Q3 grid
Signal.Further, described control unit 60 includes single-chip microcomputer U1 and its peripheral circuit.
In the present embodiment, for the ease of being acquired to electric signal in inverter circuit, the source electrode of the 3rd switching tube Q2
Current-limiting resistance (R3, R4, R5) is serially connected with, the source electrode of the 3rd switching tube Q2 is connected to control unit 60, to make the control
Unit 60 gathers the electric signal of the 3rd switching tube Q2 source electrodes.
Further, the semi-bridge inversion unit 30 also includes the second insurance F1, and described second, which insures F1, is serially connected with half-bridge
First output end of inversion unit 30.
In the present embodiment, also include a voltage sampling unit 40, the voltage sampling unit 40, which includes, to be sequentially connected in series
The first sampling resistor 13 and the second sampling resistor R15, the front end of first sampling resistor 13 is connected to second switch pipe Q1
Drain electrode, the rear end of the second sampling resistor R15 is connected to control unit 60, is opened with making described control unit 60 gather second
Close the electric signal of pipe Q1 drain electrodes.
For the ease of being detected to AC electric signal, Fig. 2 is refer to, the present embodiment also includes an AC sampling list
Member 50, the AC sampling unit 50 is connected between the input of input block 10 and control unit 60, the AC sampling
Unit 50 is used to gather the voltage of the AC of input block 10 and feeds back to control unit 60.
Further, the AC sampling unit 50 includes amplifier U9B, the amplifier U9B two inputs difference
The input of input block 10 is connected to by current-limiting resistance, the output end of the amplifier U9B is connected to control unit 60.Its
In, first switch pipe Q3 is that the input AC sine wave adopted according to control unit changes to increase or reduce first switch pipe Q3
ON time so that electric current and voltage-phase, which become consistent, improves PF values.
Intelligent half-bridge sine voltage change-over circuit based on Vienna PFC disclosed in the utility model, it has height
PF values, power network are isolated with output end, and security is very high.Output voltage can be automatically adjusted in input full voltage range,
And fixed output frequency, and output voltage is, with sinewave output, automatic shaping function to be pressed with to alternating current, in addition this reality
With new containing voltage and current sampling circuit, can anti-surge voltage and electric current, and control simple, particularly Converting Unit is only
With two switching tubes, with the more low advantage of cost.
Simply the utility model preferred embodiment described above, is not limited to the utility model, all in this practicality
Modification, equivalent substitution or improvement made in new technical scope etc., should be included in the model that the utility model is protected
In enclosing.
Claims (10)
1. a kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC, it is characterised in that include：
One input block, for accessing power network alternating current；
One Vienna PFC boost unit, includes boost inductance, first switch pipe, the first diode, the second diode, the 3rd
Diode, the 4th diode, the 5th diode, the 6th diode, the first electrochemical capacitor and the second electrochemical capacitor, the boosting electricity
The front end of sense is connected to the first output end of input block, the rear end of the boost inductance be connected to the first diode anode and
The negative electrode of second diode, the drain electrode of the first switch pipe and the negative electrode of the 3rd diode are all connected to the moon of the first diode
Pole, the source electrode of the first switch pipe and the anode of the 4th diode are all connected to the anode of the second diode, and described first opens
Closing the grid of pipe is used to access pwm pulse signal, and the anode of the 5th diode is connected to the negative electrode of the 3rd diode, described
The negative electrode of 5th diode is connected to the positive pole of the first electrochemical capacitor, and the negative pole of first electrochemical capacitor is connected to the second electrolysis
The positive pole of electric capacity, the negative electrode of the 6th diode is connected to the anode of the 4th diode, and the anode of the 6th diode connects
It is connected to the second electrochemical capacitor negative pole, the negative electrode of the 4th diode, the second of the positive pole of the second electrochemical capacitor and input block
Output end is connected and the tie point is as holding altogether, and the positive pole of first electrochemical capacitor is used as Vienna PFC boost unit
Output head anode, the negative pole of second electrochemical capacitor as Vienna PFC boost unit negative pole of output end；
One half-bridge inversion unit, includes second switch pipe, the 3rd switching tube, the 3rd electrochemical capacitor, the 4th electrochemical capacitor and filter
Ripple inductance, the drain electrode of the second switch pipe and the positive pole of the 3rd electrochemical capacitor are all connected to the defeated of Vienna PFC boost unit
Go out proper pole, the source electrode of the second switch pipe is connected to the drain electrode of the 3rd switching tube, the source electrode of the 3rd switching tube and
The negative pole of four electrochemical capacitors is all connected to the negative pole of output end of Vienna PFC boost unit, the grid of the second switch pipe and
The grid of 3rd switching tube is respectively used to access pwm control signal, to make the second switch pipe and the 3rd switching tube alternately lead
Logical, the negative pole of the 3rd electrochemical capacitor and the positive pole of the 4th electrochemical capacitor are all connected to holding altogether, and the 4th electrochemical capacitor
Positive pole as the first output end of semi-bridge inversion unit, the source electrode of the second switch pipe is connected to the front end of filter inductance,
The rear end of the filter inductance as semi-bridge inversion unit the second output end.
2. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 1 based on Vienna PFC, its feature exists
In the input block includes socket, the first insurance, lightning protection resistance, common mode inhibition inductance and safety electric capacity, and described first protects
Danger is serially connected with the zero line of socket or live wire, and the front end of the common mode inhibition inductance is parallel to socket, the lightning protection resistor coupled in parallel
In the front end of common mode inhibition inductance, the safety electric capacity is parallel to the rear end of common mode inhibition inductance, and the common mode inhibition inductance
Rear end as input block output end.
3. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 1 based on Vienna PFC, its feature exists
In also including a control unit, the grid of the first switch pipe is connected to control unit, described control unit is used for the
The grid loading pwm pulse signal of one switching tube.
4. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 3 based on Vienna PFC, its feature exists
In described control unit includes single-chip microcomputer and its peripheral circuit.
5. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 3 based on Vienna PFC, its feature exists
In the source electrode of the 3rd switching tube is serially connected with current-limiting resistance, and the source electrode of the 3rd switching tube is connected to control unit, to make
Described control unit gathers the electric signal of the 3rd switching tube source electrode.
6. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 1 based on Vienna PFC, its feature exists
In also including the second insurance, second insurance is serially connected with the first output end of semi-bridge inversion unit.
7. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 3 based on Vienna PFC, its feature exists
In also including a voltage sampling unit, the voltage sampling unit includes the first sampling resistor and second being sequentially connected in series
Sampling resistor, the front end of first sampling resistor is connected to the drain electrode of second switch pipe, the rear end of second sampling resistor
Control unit is connected to, to make described control unit gather the electric signal of second switch pipe drain electrode.
8. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 3 based on Vienna PFC, its feature exists
In, also include an AC sampling unit, the AC sampling unit be connected to input block input and control unit it
Between, the AC sampling unit is used to gather the voltage of input block AC and feeds back to control unit.
9. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 8 based on Vienna PFC, its feature exists
Include amplifier in, the AC sampling unit, two inputs of the amplifier are connected to defeated by current-limiting resistance respectively
Enter the input of unit, the output end of the amplifier is connected to control unit.
10. the intelligent half-bridge sine voltage change-over circuit as claimed in claim 1 based on Vienna PFC, its feature exists
In being connected with pull down resistor between the grid and source electrode of the first switch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720048949.8U CN206506442U (en) | 2017-01-16 | 2017-01-16 | A kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720048949.8U CN206506442U (en) | 2017-01-16 | 2017-01-16 | A kind of intelligent half-bridge sine voltage change-over circuit based on Vienna PFC |
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| CN206506442U true CN206506442U (en) | 2017-09-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655803A (en) * | 2017-01-16 | 2017-05-10 | 广东百事泰电子商务股份有限公司 | Intelligent half-bridge sine wave voltage conversion circuit based on Vienna PFC |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655803A (en) * | 2017-01-16 | 2017-05-10 | 广东百事泰电子商务股份有限公司 | Intelligent half-bridge sine wave voltage conversion circuit based on Vienna PFC |
| WO2018129835A1 (en) * | 2017-01-16 | 2018-07-19 | 广东百事泰电子商务股份有限公司 | Vienna pfc-based smart half bridge sine wave voltage conversion circuit |
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