CN101521501B - Signal generating device - Google Patents
Signal generating device Download PDFInfo
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- CN101521501B CN101521501B CN 200810082507 CN200810082507A CN101521501B CN 101521501 B CN101521501 B CN 101521501B CN 200810082507 CN200810082507 CN 200810082507 CN 200810082507 A CN200810082507 A CN 200810082507A CN 101521501 B CN101521501 B CN 101521501B
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- energy storage
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Abstract
The invention provides a signal generating device which comprises a first energy storage component and a second energy storage component. The first energy storage component generates a first output signal on the basis of a signal. The second energy storage component performs energy storage according to at least one energy storage time or at least one energy release time of the first energy storagecomponent, and second energy storage component generates a second output signal on the basis of the first output signal.
Description
Technical field
The present invention is a kind of signal generation device, the signal generation device of particularly a kind of multi-stage serial connection formula (series cascaded).
Background technology
The rechargeable delay circuit of traditional electric capacity, with the time that charging current and capacitance size decision postpone, its relational expression is as follows:
Produce long inhibit signal if desired, then need reduce current value or increase electric capacity.But the generation of little electric current is upward wayward with control, and electric capacity then can consume too much layout area (layout area) greatly, can make the manufacturing cost of IC (integrated circuit) increase.In addition, if capacitance increases, want fast charging and discharging then to need big electric current again, and this can make the power of total consumption increase.
Summary of the invention
The object of the present invention is to provide a kind of signal generation device, to overcome the defective that exists in the known technology.
For realizing above-mentioned purpose, signal generation device provided by the invention comprises
One first energy storage component produces one first output signal based on a signal; And
One second energy storage component can carry out energy storage according at least one energy storage time or at least one the releasing of this first energy storage component the time, and this second energy storage component produces one second output signal based on this first output signal.
Described signal generation device, wherein, releasing greater than this when this energy storage time can the time, and then release based on this can the time and by energy storage for this second energy storage component, and releasing less than this when this energy storage time can the time, and then this second energy storage component is based on this energy storage time and by energy storage.
Described signal generation device, wherein, this first and second output has one between the signal and postpones relation.
Described signal generation device wherein, is released ability during the time when this energy storage time greater than this, and then when this first energy storage component energy storage, the voltage of this second energy storage component remains unchanged.
Described signal generation device, wherein, this first and second output has a geometric ratio (geometric) relation between the signal.
Described signal generation device also comprises:
One first comparison module is made comparisons the voltage and a default value of this first energy storage component;
One first energy storage control module is according to comparative result and this signal of this first comparison module, to this first energy storage component energy storage; And
One first releases energy control module, according to the comparative result of this first comparison module, this first energy storage component is released ability.
Described signal generation device, wherein, this first is released energy control module and has a switching device, and when the voltage of this first energy storage component during greater than this default value, this switching device is switched on, and makes this first energy storage component released ability.
Described signal generation device, wherein, this switching device also couples a current source, provides one to release the ability electric current, and can this size of releasing the ability electric current adjust releasing the ability time of this first energy storage component by adjustment.
Described signal generation device, wherein, this first energy storage control module comprises:
One switching device couples this first energy storage component, and when the voltage of this first energy storage component during less than this default value, this switching device is switched on, in order to this first energy storage component energy storage; And
Whether one logical circuit according to comparative result and this signal of this first comparison module, determines this switching device of conducting.
Described signal generation device wherein, also comprises a current source, is coupled between a voltage source and this switching device, gives this first energy storage component in order to an energy storage electric current to be provided.
Described signal generation device, this logical circuit wherein comprises:
One not gate has a first input end and one first output, and this first input end receives the comparative result of this first comparison module; And
One with door, have second and third input and one second output, this second input receives this signal, the 3rd input couples this first output, the signal of this second output is in order to this switching device of conducting.
Described signal generation device also comprises:
One second comparison module is made comparisons voltage and this default value of this second energy storage component;
One second energy storage control module is enabled according to the comparative result of this first comparison module, and according to the comparative result of this first and second comparison module, to this second energy storage component energy storage; And
One second releases energy control module, according to the comparative result of this second comparison module, this second energy storage component is released ability.
Described signal generation device, wherein, according to the comparative result of this first comparison module; Can obtain this first output signal; According to the comparative result of this second comparison module, can obtain this second output signal, this first and second output has a geometric ratio (geometric) relation between the signal.
Description of drawings
Fig. 1 is the sketch map according to an embodiment of a signal generation device of the present invention.
Fig. 2 is the signal generation device output waveform figure of Fig. 1.
Fig. 3 is the sketch map according to another embodiment of a signal generation device of the present invention.
Fig. 4 is the flow chart according to an embodiment of the control method of signal generation device of the present invention.
Primary clustering symbol description in the accompanying drawing:
10～signal generation device
11,31～the first signal generation units
12,32～secondary signal generation unit
13～the n signal generation units
IN～input signal
33～energy storage control module
34～release energy control module
35～Logic control module
36～inverter
37a, 37b～with door
38a, 38b～current source
39～schmitt trigger
Embodiment
Signal generation device of the present invention comprises one first energy storage component and one second energy storage component.This first energy storage component produces one first output signal based on a signal.This second energy storage component can carry out energy storage according at least one energy storage time or at least one the releasing of this first energy storage component the time, and this second energy storage component produces one second output signal based on this first output signal.
Below in conjunction with accompanying drawing and enumerate embodiment and elaborate.
Fig. 1 is the sketch map according to an embodiment of a signal generation device of the present invention.Signal generation device 10 by a plurality of signal generation units contact (series cascaded) form, comprise the first signal generation unit 11, secondary signal generation unit 12 and n signal generation unit 13.The first signal generation unit 11 receives an input signal IN, and to one first energy storage component C in the first signal generation unit 11
1Carry out energy storage.As the first energy storage component C
1The voltage that stores is during greater than one first critical value, and the first signal generation unit 11 begins the first energy storage component C
1Release ability, and the first signal generation unit 11 is exported signal OUT
1To secondary signal generation unit 12.12 of secondary signal generation units are according to output signal OUT
1To one second energy storage component C in the secondary signal generation unit 12
2Carry out energy storage.As the second energy storage component C
2The voltage that stores is during greater than first critical value, and secondary signal generation unit 12 begins the second energy storage component C
2Release ability, and secondary signal generation unit 12 is exported signal OUT
2Signal generation unit to next stage.
As the first energy storage component C
1Voltage when being lower than one second critical value, the first signal generation unit 11 stops to export signal OUT
1To secondary signal generation unit 12, and 11 couples first energy storage component C of the first signal generation unit
1Carry out energy storage.Utilize above-mentioned mechanism just can produce the inhibit signal of different time of delays, like output signal OUT
1With OUT
2In addition, if control signal generating unit, like the size of releasing ability electric current and energy storage electric current of the first signal generation unit 11, the output signal of signal generation unit is like OUT
nThe quantity that just can comply with the signal generation unit that is connected in series time of delay become geometric progression to increase.Thus, just can not need to produce required inhibit signal under the big electric capacity or the situation of little electric current.In addition, the output signal of signal generation unit is like OUT
n, also can produce the concussion frequency of a low frequency via after the digital processing.
In like manner, the function mode of signal generation unit 13 is identical with the first signal generation unit 11 and secondary signal generation unit 12 haply, does not give unnecessary details at this.In the present embodiment, the first energy storage component C
1, the second energy storage component C
2And n energy storage component C
nBe to be the example explanation with electric capacity, non-in order to restriction the present invention.In the present embodiment, be discharge time (belong to release can time) with energy storage component in the signal generation unit of previous stage to come energy storage component in the next stage signal generation unit is charged.But can also come energy storage component in the next stage signal generation unit is charged with the charging interval (belonging to energy storage time) of energy storage component in the signal generation unit of previous stage.In another embodiment, as the first energy storage component C
1Energy storage time greater than the first energy storage component C
1Release can the time time this second energy storage component C then
2Releasing according to this can the time and by energy storage, as the first energy storage component C
1Energy storage time less than the first energy storage component C
1Release can the time time this second energy storage component C then
2According to this energy storage time and by energy storage.
Fig. 2 is the signal generation device output waveform figure of Fig. 1.VC1 representes the first energy storage component C
1Voltage, VC2 representes the first energy storage component C
2Voltage.After at the beginning, the output signal IN activation first signal generation unit 11, the first energy storage component C at this moment
1Voltage VC1 be lower than the second critical value V
2, so 11 couples first energy storage component C of the first signal generation unit
1Carry out energy storage.At the first energy storage component C
1When carrying out energy storage, the output signal OUT of the first signal generation unit 11
1Maintain the accurate position of low-voltage, up to the first energy storage component C
1Voltage VC1 greater than the first critical value V
1The time, the output signal OUT of the first signal generation unit 11
1Convert the accurate position of high voltage into.
Output signal OUT when the first signal generation unit 11
1During for the accurate position of high voltage, secondary signal generation unit 12 is enabled.This moment the second energy storage component C
2Voltage VC2 be lower than the 4th critical value V
4, so 12 couples second energy storage component C of secondary signal generation unit
2Carry out energy storage.After time through Δ t3, the first energy storage component C
1Voltage VC1 be lower than the second critical value V once more
2, so 11 couples first energy storage component C of the first signal generation unit
1Carry out energy storage, and the output signal OUT of the first signal generation unit 11
1Switched in the accurate position of low-voltage.Secondary signal generation unit 12 stops the second energy storage component C at this moment
2Carry out energy storage, and keep the second energy storage component C
2Voltage VC2, up to the second energy storage component C
2Voltage VC2 just can be after greater than the 3rd critical voltage V3 to the second energy storage component C
2Release ability.In another embodiment, as the second energy storage component C
2Voltage VC2 during greater than the 3rd critical voltage V3, can't be at once to the second energy storage component C
2Release ability, and can wait until when secondary signal generation unit 12 is enabled next time just to the second energy storage component C
2Release ability.
In the present embodiment, the first energy storage component C
1The energy storage time Δ t1 and the first energy storage component C
1Release and can time Δ t3 can release ability current source (figure is last not to be drawn) and control by an energy storage current source (figure is last not to be drawn) and of the first signal generation unit 11.In like manner, the second energy storage component C
2The energy storage time Δ t2 and the first energy storage component C
2Release and can time Δ t4 can release ability current source (figure is last not to be drawn) and control by an energy storage current source (figure is last not to be drawn) and of secondary signal generation unit 12.In the present embodiment, can be by the interior current source of current source and the secondary signal generation unit of the control first signal generation unit 11 12, make the second energy storage component C
2The energy storage time Δ t2 and the first energy storage component C
1Energy storage time Δ t1 have a geometric ratio (geometric) relation.
Fig. 3 is the sketch map according to another embodiment of a signal generation device of the present invention.Signal generation device by a plurality of signal generation units contact (series cascaded) form, in the present embodiment only with the first signal generation unit 31 and 32 explanations of secondary signal generation unit.The first signal generation unit 31 comprises energy storage control module 33a, releases energy control module 34a, Logic control module 35a and a comparison module.In the present embodiment, comparison module is the example explanation with schmitt trigger (Schmitt trigger) 39a.Schmitt trigger 39a has a positive input terminal, a negative input end and an output, and wherein this positive input terminal couples this first energy storage component C
1An end, this negative input end receives a reference voltage VR, this output couples this Logic control module 35a.At the beginning the time, the voltage of the positive input terminal of schmitt trigger 39a is lower than reference voltage VR, so the output of schmitt trigger 39a is exported a logic low level signal to this Logic control module 35a.This Logic control module 35a have a not gate 36a and one and the door 37a.Not gate 36a has a first input end and one first output, and this first input end couples the output of schmitt trigger 39a.Have second and third input and one second output with door 37a, this second input receives the IN signal, and the 3rd input couples first output of this not gate 36a, and this second output couples the control end of switching device T1.When the IN signal was the logic high levle, this moment, the output signal of Logic control module 35a also was the logic high levle, and switching device T1 is therefore conducting also.At this moment, energy storage control module 33a utilizes current source 38a to begin the first energy storage component C
1Energy storage, the voltage of the positive input terminal of schmitt trigger 39a also so gradually raise.
When the voltage of the positive input terminal of schmitt trigger 39a is higher than reference voltage VR; The output signal of schmitt trigger 39a is the logic high levle; Therefore the output signal transition of Logic control module 35a is the logic low level, off switch device T1, and also therefore conducting of switching device T2.When switching device T2 conducting, release energy control module 34a and utilize current source 38b to begin the first energy storage component C
1Release ability, the voltage of the positive input terminal of schmitt trigger 39a also so gradually reduces.When the voltage of the positive input terminal of schmitt trigger 39a also so gradually is reduced to a critical voltage; The output signal transition of schmitt trigger 39a is the logic low level; Release energy control module 34a and be closed, energy storage control module 33a then is enabled once more, and to the first energy storage component C
1Energy storage.When the output signal of schmitt trigger 39a was the logic high levle, secondary signal generation unit 32 was enabled, and to the second energy storage component C
2Energy storage.
The first signal generation unit 32 comprises energy storage control module 33b, releases energy control module 34b, Logic control module 35b and a comparison module.In the present embodiment, comparison module is the example explanation with schmitt trigger (Schmitt trigger) 39b.Schmitt trigger 39b has a positive input terminal, a negative input end and an output, and wherein this positive input terminal couples this second energy storage component C
2An end, this negative input end receives a reference voltage VR, this output couples this Logic control module 35.At the beginning the time, the voltage of the positive input terminal of schmitt trigger 39b is lower than reference voltage VR, so the output of schmitt trigger 39b is exported a logic low level signal to this Logic control module 35b.This Logic control module 35b have a not gate 36b and one and the door 37b.Not gate 36b has a first input end and one first output, and this first input end couples the output of schmitt trigger 39b.Have second and third input and one second output with door 37b; This second input receives the output signal of schmitt trigger 39a; The 3rd input couples first output of this not gate 36b, and this second output couples the control end of switching device T3.When the output signal of schmitt trigger 39a was the logic high levle, this moment, the output signal of Logic control module 35b also was the logic high levle, and switching device T3 is therefore conducting also.At this moment, energy storage control module 33b utilizes current source 38c to begin the second energy storage component C
2Energy storage, the voltage of the positive input terminal of schmitt trigger 39b also so gradually raise.
When the voltage of the positive input terminal of schmitt trigger 39b is higher than reference voltage VR; The output signal of schmitt trigger 39b is the logic high levle; Therefore the output signal transition of Logic control module 35b is the logic low level, off switch device T3, and also therefore conducting of switching device T4.When switching device T4 conducting, release energy control module 34b and utilize current source 38d to begin the second energy storage component C
2Release ability, the voltage of the positive input terminal of schmitt trigger 39b also so gradually reduces.When the voltage of the positive input terminal of schmitt trigger 39b also so gradually is reduced to a critical voltage; The output signal transition of schmitt trigger 39b is the logic low level; Release energy control module 34b and be closed, energy storage control module 33b then is enabled once more, and to the second energy storage component C
2Energy storage.When the output signal of schmitt trigger 39a is the logic high levle, can activation the signal generation unit of next stage, and let energy storage component energy storage in the signal generation unit of next stage.
In the present embodiment, the first energy storage component C
1The energy storage time and the first energy storage component C
1Release can the time can by the energy storage current source 38a of the first signal generation unit 31 with release and can control by current source 38b.In like manner, the second energy-storage travelling wave tube C
2The energy storage time and the second energy storage component C
2Release can the time also can by the energy storage current source in the secondary signal generation unit 32 with release and can control by current source.
In the present embodiment, secondary signal generation unit 32 is first energy storage component C in the first signal generation unit 31
1Release can the time to the second energy storage component C
2Energy storage.But can with the input of door 37b in order to the output signal that receives schmitt trigger 39a before couple an inverter, so secondary signal generation unit 32 is first energy storage component C in the first signal generation unit 31
1During energy storage to the second energy storage component C
2Energy storage.
Fig. 4 is the flow chart according to an embodiment of signal generation device of the present invention.The flow chart of present embodiment can be applicable to the signal generation device of Fig. 1 and Fig. 3, in this signal generation device collocation explanation with Fig. 1.Elder generation is to the first energy storage component C in the first signal generation unit 11 in step S41
1Carry out energy storage, and write down its energy storage time.Follow in step S42 earlier to the first energy storage component C in the first signal generation unit 11
1Release ability, and write down it and release the ability time.In step S43, judge energy storage time and the size of releasing the ability time.If energy storage time jumps to step S44, otherwise jumps to step S45 greater than releasing the ability time.In step S44, at the first energy storage component C
1Release can the time to the second energy storage component C in the secondary signal generation unit 12
2Carry out energy storage.In step S45, at the first energy storage component C
1When carrying out energy storage the second energy storage component C2 in the secondary signal generation unit 12 is carried out energy storage.
Though the present invention discloses as above with specific embodiment; Right its has been merely and has been easy to explain technology contents of the present invention; And be not with narrow sense of the present invention be defined in this embodiment; Those skilled in the art are not breaking away from the spirit and scope of the present invention, and when can doing a little change and retouching, so protection scope of the present invention is as the criterion when the content that the claim scope that look application is defined.
Claims (11)
1. a signal generation device comprises
One first energy storage component produces one first output signal based on a signal; And
One second energy storage component can carry out energy storage according at least one energy storage time or at least one the releasing of this first energy storage component the time, and this second energy storage component produces one second output signal based on this first output signal.
2. signal generation device as claimed in claim 1; Wherein, releasing greater than this when this energy storage time can the time, and then release according to this can the time and by energy storage for this second energy storage component; Release the ability time when this energy storage time less than this, then this second energy storage component is according to this energy storage time and by energy storage.
3. signal generation device as claimed in claim 1, wherein, this first and second output has one between the signal and postpones relation.
4. signal generation device as claimed in claim 1 wherein, is released ability during the time when this energy storage time greater than this, and then when this first energy storage component energy storage, the voltage of this second energy storage component remains unchanged.
5. signal generation device as claimed in claim 1 also comprises:
One first comparison module is made comparisons the voltage and a default value of this first energy storage component;
One first energy storage control module is according to comparative result and this signal of this first comparison module, to this first energy storage component energy storage; And
One first releases energy control module, according to the comparative result of this first comparison module, this first energy storage component is released ability.
6. signal generation device as claimed in claim 5, wherein, this first is released energy control module and has a switching device, and when the voltage of this first energy storage component during greater than this default value, this switching device is switched on, and makes this first energy storage component released ability.
7. signal generation device as claimed in claim 6, wherein, this switching device couples a current source, provides one to release the ability electric current, and this releasing of this first energy storage component of size adjustment of releasing the ability electric current can the time by adjustment.
8. signal generation device as claimed in claim 5, wherein, this first energy storage control module comprises:
One switching device couples this first energy storage component, and when the voltage of this first energy storage component during less than this default value, this switching device is switched on, in order to this first energy storage component energy storage; And
Whether one logical circuit according to the comparative result of this first comparison module, determines this switching device of conducting.
9. signal generation device as claimed in claim 5 wherein, comprises a current source, is coupled between a voltage source and this switching device, gives this first energy storage component in order to an energy storage electric current to be provided.
10. signal generation device as claimed in claim 8, wherein, this logical circuit comprises:
One not gate has a first input end and one first output, and this first input end receives the comparative result of this first comparison module; And
One with door, have second and third input and one second output, this second input receives this signal, the 3rd input couples this first output, the signal of this second output is in order to this switching device of conducting.
11. signal generation device as claimed in claim 5 wherein, comprising:
One second comparison module is made comparisons voltage and this default value of this second energy storage component;
One second energy storage control module is enabled according to the comparative result of this first comparison module, and according to the comparative result of this first and second comparison module, to this second energy storage component energy storage; And
One second releases energy control module, according to the comparative result of this second comparison module, this second energy storage component is released ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810082507 CN101521501B (en) | 2008-02-27 | 2008-02-27 | Signal generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810082507 CN101521501B (en) | 2008-02-27 | 2008-02-27 | Signal generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101521501A CN101521501A (en) | 2009-09-02 |
| CN101521501B true CN101521501B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810082507 Expired - Fee Related CN101521501B (en) | 2008-02-27 | 2008-02-27 | Signal generating device |
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| Country | Link |
|---|---|
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280419A (en) * | 1999-06-29 | 2001-01-17 | 因芬尼昂技术股份公司 | Output clock integrated circuit with phase displacement produced by clock signal |
| CN1333598A (en) * | 2000-05-26 | 2002-01-30 | 日本电气株式会社 | Fixed time equation divided circuit and signal control method and device |
-
2008
- 2008-02-27 CN CN 200810082507 patent/CN101521501B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280419A (en) * | 1999-06-29 | 2001-01-17 | 因芬尼昂技术股份公司 | Output clock integrated circuit with phase displacement produced by clock signal |
| CN1333598A (en) * | 2000-05-26 | 2002-01-30 | 日本电气株式会社 | Fixed time equation divided circuit and signal control method and device |
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| Publication number | Publication date |
|---|---|
| CN101521501A (en) | 2009-09-02 |
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