CN103532378A - Voltage converter capable of suppressing output voltage overshooting - Google Patents
Voltage converter capable of suppressing output voltage overshooting Download PDFInfo
- Publication number
- CN103532378A CN103532378A CN201210231992.XA CN201210231992A CN103532378A CN 103532378 A CN103532378 A CN 103532378A CN 201210231992 A CN201210231992 A CN 201210231992A CN 103532378 A CN103532378 A CN 103532378A
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- voltage
- output
- voltage level
- error amplifier
- compensating network
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Abstract
The invention discloses a voltage converter capable of suppressing output voltage overshooting. The voltage converter is used for receiving an input voltage and adjusting the input voltage to generate an output voltage. In one embodiment of the invention, the voltage converter comprises an error amplifier, a compensation network and a selection circuit. The error amplifier has a positive-phase input end used for receiving a reference voltage, a reverse-phase input end used for receiving a feedback voltage associated with the output voltage, and an output end used for providing an error voltage. The compensation network is used for compensating the stability of the error amplifier. The selection circuit is used for selectively connecting the compensation network to the output end of the error amplifier according to the voltage level of the error voltage. In operation, when the voltage level of the feedback voltage is smaller than the voltage level of the reference voltage, the compensation network is not connected to the output end of the error amplifier; and when the voltage level of the feedback voltage is substantially equal to the voltage level of the reference voltage, the compensation network is connected to the output end of the error amplifier.
Description
Technical field
The invention relates to a kind of electric pressure converter that suppresses output voltage overshoot situation.
Background technology
Dc-dc electric pressure converter can, in order to an input voltage regulation is become to a stable output voltage, be used the required electric current of offered load.Generally speaking, dc-dc electric pressure converter is divided into pressure boosting type electric voltage converter (boost converter), buck electric pressure converter (buck converter) and step-down/up type electric pressure converter (buck-boost converter) according to the size of input voltage and output voltage values.Fig. 1 illustrates the configuration diagram of a typical pressure boosting type electric voltage converter 10.With reference to Fig. 1, this pressure boosting type electric voltage converter 10 comprises an input capacitance C
iN, an inductance L, two interrupteur SW
1and SW
2, an output capacitance C
oUTan and control circuit 12.This control circuit 12 is controlled two interrupteur SW in order to provide
1and SW
2two drive signal D
1and D
2, make interrupteur SW
1and SW
2can and close by conducting alternately.
With reference to Fig. 1, this control circuit 12 comprises an error amplifier 122, a compensating network 124, a comparator 126 and a pulse width modulation (Pulse Width Modulation, PWM) circuit 128.This pressure boosting type electric voltage converter 10 also comprises a bleeder circuit 14, and it is in order to detect output voltage V
oUTvariation.This bleeder circuit 14 is by two series resistance R
1and R
2by output voltage V
oUTcarry out dividing potential drop to produce corresponding feedback voltage V
fB.Then, according to reference voltage V
rEFand feedback voltage V
fBbetween voltage difference, this error amplifier 122 produces a corresponding output voltage V
e.The output voltage V that this comparator 126 transmits at relative error amplifier 10
ewith a sawtooth signal V
sAWafter, produce a pulse signal.This pulse signal is sent to this pwm circuit 128 to produce corresponding driving signal D
1and D
2.By driving signal D
1and D
2open or closing switch SW
1and SW
2and inductance L is carried out to charge or discharge, this pressure boosting type electric voltage converter 10 can produce needed load current and stable output voltage.
In order to compensate the stability of this error amplifier 122, the output of this error amplifier 122 can be connected to this compensating network 124, to compensate output voltage V<sub TranNum="78">e</sub>.Yet, in system initial start stage, being limited to the response time of this compensating network 124, this pressure boosting type electric voltage converter 10 can produce the situation of output voltage overshoot (overshoot).Fig. 2 illustrates the oscillogram of this pressure boosting type electric voltage converter 10 when start.With reference to Fig. 2, at system initial start stage (t<t<sub TranNum="79">sTART</sub>) time, due to output voltage V<sub TranNum="80">e</sub>a stable voltage level cannot be arrived fast, therefore when start, sizable inductive current I can be produced<sub TranNum="81">l</sub>, and output voltage V<sub TranNum="82">oUT</sub>have the phenomenon of overshoot.This overshoot voltage may cause damage to load elements.
Therefore, be necessary to propose a kind of electric pressure converter that suppresses output voltage overshoot situation, the potential problems while starting shooting with resolution system.
Summary of the invention
The object of this invention is to provide a kind of electric pressure converter that suppresses output voltage overshoot situation, it produces an output voltage in order to receive an input voltage to regulate.
For reaching above-mentioned object, an embodiment of electric pressure converter of the present invention comprises an error amplifier, a compensating network and is selected circuit.This error amplifier have receive a reference voltage a normal phase input end, receive an inverting input of a feedback voltage that is associated with this output voltage and the output of an error voltage be provided.This compensating network is in order to compensate the stability of this error amplifier.This selection circuit in order to according to the voltage level of this error voltage optionally to connect this compensating network to this output of this error amplifier.When running, when the voltage level of this feedback voltage is less than the voltage level of this reference voltage, this compensating network is not attached to this output of this error amplifier, and when the voltage level essence of this feedback voltage equals the voltage level of this reference voltage, this compensating circuit is connected in this output of this error amplifier.
Accompanying drawing explanation
Fig. 1 illustrates the configuration diagram of a typical pressure boosting type electric voltage converter;
Fig. 2 illustrates the oscillogram of this pressure boosting type electric voltage converter when start;
Fig. 3 shows the configuration diagram in conjunction with the electric pressure converter of the inhibition output voltage overshoot situation of one embodiment of the invention;
Fig. 4 shows the thin portion circuit diagram in conjunction with the selection circuit of one embodiment of the invention;
Fig. 5 shows the thin portion circuit diagram in conjunction with the selection circuit of another embodiment of the present invention; And
Fig. 6 shows the thin portion circuit diagram in conjunction with the selection circuit of further embodiment of this invention.
[main element label declaration]
10 pressure boosting type electric voltage converter 12 control circuits
122 error amplifier 124 compensating networks
126 comparator 128 pwm circuits
14 bleeder circuit 30 electric pressure converters
32 control circuit 322 error amplifiers
324 select circuit 3242 signaling conversion circuits
3244～3252 switch 3254 voltage clamping circuit
325 compensating network 326 comparators
328 pwm circuit 34 bleeder circuits
C
iN, C
oUT, C
1, C
2, C
ccapacitor I
1, I
2, I
cONSTcurrent source
L,L
1inductance M
1, M
2transistor
R
1, R
2, R
a, R
b, R
cresistance SW
1, SW
2, SW
a, SW
bswitch
X
1～X
2inverter
Embodiment
The direction that the present invention inquires at this is a kind of in order to suppress the electric pressure converter of output voltage overshoot situation.In order to understand up hill and dale the present invention, will detailed step and structure be proposed in following description.Apparently, execution of the present invention is not defined in the familiar specific details of those skilled in the art.On the other hand, well-known structure or step are not described in details, with the restriction of avoiding causing the present invention unnecessary.Preferred embodiment meeting of the present invention is described in detail as follows, yet except these are described in detail, the present invention can also implement in other embodiments widely, and scope of the present invention circumscribed not, and it is as the criterion with above-mentioned the scope of the claims.
Fig. 3 shows the configuration diagram in conjunction with the electric pressure converter 30 of the inhibition output voltage overshoot situation of one embodiment of the invention.This electric pressure converter 30 is in order to receive an input voltage V
iNto regulate, produce an output voltage V
oUT.With reference to Fig. 3, this electric pressure converter 30 comprises an input capacitance C
1, an inductance L
1, two interrupteur SW
aand SW
b, an output capacitance C
2an and control circuit 32.This control circuit 32 is in order to provide control switch SW
aand SW
2two drive signal D
aand D
b, make interrupteur SW
aand SW
bcan and close by conducting alternately.
With reference to Fig. 3, this control circuit 32 comprises an error amplifier 322, and selects circuit 324, a comparator 326 and a pwm circuit 328.This error amplifier 322 has the reference voltage V of reception
rEFa normal phase input end, receive and to be associated with this output voltage V
oUTa feedback voltage V
fBan inverting input and an error voltage V is provided
eAoutput.In order to compensate the loop stability of this error amplifier 322, a compensating network 325 is connected to the output of this error amplifier 322 by this selection circuit 324, to compensate this error voltage V
eA.Fig. 4 shows the thin portion circuit diagram in conjunction with the selection circuit 324 of one embodiment of the invention.With reference to Fig. 4, this selection circuit 324 comprises a signaling conversion circuit 3242 and a switch 3244.This signaling conversion circuit 3242 is in order to according to this error voltage V
eAvoltage level to produce a logical signal S
1, 3244, this switch is according to this logical signal S
1optionally to connect this compensating network 325 to the output of this error amplifier 322.
With reference to Fig. 3, this comparator 326 has the sawtooth signal V of reception
sAWa normal phase input end, receive this error voltage V
eAan inverting input and a pulse signal V is provided
pULoutput.This pwm circuit 328 is receiving this pulse signal V
pULafter, produce two driving signal D
aand D
bto control two interrupteur SW
aand SW
b, use and make interrupteur SW
aand SW
bcan and close by conducting alternately.
The operation principle of this electric pressure converter 30 now coordinates Fig. 3 and Fig. 4 to be described as follows.When this electric pressure converter 30 operates on normal mode, can export a stable voltage V
oUT, and its voltage level is greater than input voltage V
iNvoltage level.This electric pressure converter 30 also comprises a bleeder circuit 34, and it is in order to detect output voltage V
oUTvariation.This bleeder circuit 34 is by two series resistance R
aand R
bwith by output voltage V
oUTcarry out dividing potential drop, use and produce corresponding feedback voltage V
fB.Then, according to reference voltage V
rEFand feedback voltage V
fBbetween voltage difference, this error amplifier 322 produces corresponding output voltage V
eA.In order to compensate this output voltage V
eA, this compensating network 36 can be connected to by the conducting of this switch 3244 output of this error amplifier 322.In the present embodiment, this compensating network 325 is by the resistance R connecting with series system
cwith a capacitor C
cinstitute forms.Yet the present invention should be as limit.This compensating network 325 can be formed by being connected in a Single Capacitance between the output and ground of this error amplifier 322 or other compensating element, with the compensate function compound mode with any serial or parallel connection.
Producing output voltage V
eAafter, this comparator 326 is this output voltage V relatively
eAwith this sawtooth signal V
sAWto produce this pulse signal V
pUL.This pulse signal V
pULbe sent to this pwm circuit 328 to produce corresponding driving signal D
aand D
bwith control switch SW
aand SW
b.By opening or closing switch SW
aand SW
bcarry out charge or discharge inductance L
1, make output voltage V
oUTcan there is stable voltage level.
When this electric pressure converter 30 operates on normal mode, feedback voltage V
fBvoltage level can be close to reference voltage V
rEFvoltage level, and the output voltage V of this error amplifier 322
eAcan maintain a fixed value V according to the size of load current
eA, stable.Yet, when this electric pressure converter 30 initial start stage, the output voltage V that it produces
oUTstill at quite low voltage level, so feedback voltage V
fBits value is close to 0.Now, by the disconnection of this switch 3244 in Fig. 4, this compensating network 325 will be not attached to this output of this error amplifier 322.Therefore, this error amplifier 322 can be equivalent to a comparator, and its output voltage V
eAcan arrive very soon a level maximum, make output voltage V
oUTcan increase rapidly.
Along with output voltage V
oUTincrease, this feedback voltage V
fBby this bleeder circuit 34, also can rise gradually.When this feedback voltage V
fBvoltage level rise to close to reference voltage V
rEFvoltage level time, the logical signal S that this signaling conversion circuit 3242 can output one transitions
1, make this switch 3244 conductings.Now, this compensating network 325 will be connected in this output of this error amplifier 322, to compensate this error voltage V
eA.
In another embodiment of the present invention, this compensating network 325 can be connected to a constant current source or a voltage clamping circuit at the system boot initial stage, with the cross-pressure in this compensating network 325 of strangulation.Fig. 5 shows the thin portion circuit diagram in conjunction with the selection circuit 324 ' of another embodiment of the present invention.With reference to Fig. 5, this selection circuit 324 ' comprises signaling conversion circuit 3242 ' and a switch 3246 and 3248.This signaling conversion circuit 3242 ' have with Fig. 4 in the identical or approximate Circnit Layout of this signaling conversion circuit 3242.In addition, this switch 3246 is selected the output signal S of circuit 3242 ' according to this
2optionally connect this compensating network 325 to the output of this error amplifier 322, and this switch 3248 is selected another output signal S of circuit 3242 ' according to this
3optionally connect this compensating network 325 to one constant current source I
cONST.Fig. 6 shows the selection circuit 324 in conjunction with further embodiment of this invention " thin portion circuit diagram.With reference to Fig. 6, this selection circuit 324 " comprise a signaling conversion circuit 3242 " and switch 3250 and 3252.This signaling conversion circuit 3242 " have with Fig. 4 in the identical or approximate Circnit Layout of this signaling conversion circuit 3242.In addition, this switch 3250 is selected circuit 3242 according to this " output signal S
4optionally connect this compensating network 325 to the output of this error amplifier 322, and this switch 3252 is selected circuit 3242 according to this " another output signal S
5optionally connect this compensating network 325 to one voltage clamping circuit 3254.In the present embodiment, this voltage clamping circuit 3254 is by a constant current source I
2transistor M with the short circuit of one grid-source electrode
2institute forms.Yet the present invention should be as limit.
With reference to Fig. 5, in running, in these electric pressure converter 30 initial start stage, this feedback voltage V
fBvoltage level can be less than reference voltage V
rEFvoltage level, so the switch in Fig. 5 3246 can cut-off and switch 3248 can conductings, make this output of this error amplifier 322 can not be connected to this compensating network 325.Now, this compensating network 325 can be connected to this constant current source I
cONST.This constant current source I
cONSTcan charge to this compensating network 325, make the voltage V in this compensating network 325
cat this logical signal S
2during transition, rise to a predetermined value.This predetermined value is preferably and is less than or equal to aforementioned fixed value V
eA, stable.Therefore, in this compensating network 325, switch to after this output of this error amplifier 322, due to the voltage V in this compensating network 325
cbe fixed value V
eA, stable, this electric pressure converter 30 can comparatively fast enter stable state.Similarly, the constant current source I in Fig. 6
2its value can be adjusted, and makes this transistor M
2gate terminal voltage maintain fixed value V
eA, stable.
In the above-described embodiments, be to take pressure boosting type electric voltage converter as example explanation embodiments of the present invention and effect thereof, yet the present invention should be as limit.For example, buck electric pressure converter and step-down/up type electric pressure converter are owing to having the control circuit of identical or approximate configuration, therefore the present invention also can implement thereon.
Technology contents of the present invention and technical characterstic disclose as above, yet those skilled in the art still may be based on teaching of the present invention and announcements and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by above-mentioned claim scope.
Claims (6)
1. an electric pressure converter that suppresses output voltage overshoot situation, produces an output voltage in order to receive an input voltage to regulate, and this electric pressure converter comprises:
One error amplifier, have receive a reference voltage a normal phase input end, receive an inverting input of a feedback voltage that is associated with this output voltage and the output of an error voltage be provided;
One compensating network, in order to compensate the stability of this error amplifier; And
One selects circuit, in order to according to the voltage level of this error voltage optionally to connect this compensating network to this output of this error amplifier;
Wherein when the voltage level of this feedback voltage is less than the voltage level of this reference voltage, this compensating network is not attached to this output of this error amplifier, and when the voltage level essence of this feedback voltage equals the voltage level of this reference voltage, this compensating circuit is connected in this output of this error amplifier.
2. electric pressure converter according to claim 1, wherein this compensating network comprises an electric capacity.
3. electric pressure converter according to claim 1, wherein this selection circuit comprises:
One signaling conversion circuit, in order to produce a logical signal according to the voltage level of this error voltage;
One first switch, in order to optionally to connect this compensating network to this output of this error amplifier according to this logical signal.
4. electric pressure converter according to claim 3, wherein this selection circuit also comprises:
One second switch, in order to optionally to connect a constant current source to this compensating network according to this logical signal;
Wherein when the voltage level of this feedback voltage is less than the voltage level of this reference voltage, this constant current source charges to this compensating network, so that the voltage level in this compensating network rises to a predetermined value when the voltage level essence of this feedback voltage equals the voltage level of this reference voltage.
5. electric pressure converter according to claim 3, wherein this selection circuit also comprises:
One the 3rd switch, in order to optionally to connect a voltage clamping circuit to this compensating network according to this logical signal;
When wherein this voltage clamping circuit is less than the voltage level of this reference voltage in order to the voltage level at this feedback voltage, maintain voltage level to predetermined value in this compensating network.
6. electric pressure converter according to claim 1, wherein this electric pressure converter is a pressure boosting type electric voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231992.XA CN103532378B (en) | 2012-07-05 | 2012-07-05 | Suppression output voltage crosses the electric pressure converter of punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231992.XA CN103532378B (en) | 2012-07-05 | 2012-07-05 | Suppression output voltage crosses the electric pressure converter of punching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103532378A true CN103532378A (en) | 2014-01-22 |
| CN103532378B CN103532378B (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210231992.XA Active CN103532378B (en) | 2012-07-05 | 2012-07-05 | Suppression output voltage crosses the electric pressure converter of punching |
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| CN104767362A (en) * | 2015-03-27 | 2015-07-08 | 绵阳豪迈电子科技有限公司 | Parking lot management system drive circuit |
| CN104852577A (en) * | 2015-06-10 | 2015-08-19 | 灿瑞半导体(上海)有限公司 | Step-down DC converter |
| CN104902611A (en) * | 2014-03-07 | 2015-09-09 | 晶豪科技股份有限公司 | AC voltage regulating circuit and light emitting diode brightness adjusting circuit |
| CN104953836A (en) * | 2015-07-01 | 2015-09-30 | 开曼群岛威睿电通股份有限公司 | Boost converter circuit and boost converter circuit control method |
| CN105676929A (en) * | 2014-11-21 | 2016-06-15 | 南方电网科学研究院有限责任公司 | Novel LDO starting circuit preventing output overshoot |
| CN106160158A (en) * | 2015-03-31 | 2016-11-23 | 丁智博 | A kind of power supply device of electric automobile and a kind of motor vehicles |
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| CN112532032A (en) * | 2020-11-27 | 2021-03-19 | 成都启臣微电子股份有限公司 | Overshoot prevention circuit for constant voltage control power supply |
| CN113258536A (en) * | 2021-07-08 | 2021-08-13 | 上海芯龙半导体技术股份有限公司南京分公司 | Output overshoot suppression circuit and switching power supply chip |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080150449A1 (en) * | 2006-12-26 | 2008-06-26 | Beyond Innovation Technology Co., Ltd. | Control circuits for dimming control |
| CN101499717A (en) * | 2009-02-17 | 2009-08-05 | 浙江大学 | Controlling method and apparatus for four switch step-up step-down DC-DC converter |
| TW201106597A (en) * | 2009-08-05 | 2011-02-16 | Upi Semiconductor Corp | DC-DC converter |
| TW201142567A (en) * | 2010-05-25 | 2011-12-01 | Green Solution Tech Co Ltd | Feedback control circuit and power converting circuit |
-
2012
- 2012-07-05 CN CN201210231992.XA patent/CN103532378B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080150449A1 (en) * | 2006-12-26 | 2008-06-26 | Beyond Innovation Technology Co., Ltd. | Control circuits for dimming control |
| CN101499717A (en) * | 2009-02-17 | 2009-08-05 | 浙江大学 | Controlling method and apparatus for four switch step-up step-down DC-DC converter |
| TW201106597A (en) * | 2009-08-05 | 2011-02-16 | Upi Semiconductor Corp | DC-DC converter |
| TW201142567A (en) * | 2010-05-25 | 2011-12-01 | Green Solution Tech Co Ltd | Feedback control circuit and power converting circuit |
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| CN104902611B (en) * | 2014-03-07 | 2018-12-07 | 晶豪科技股份有限公司 | Alternating voltage adjustment circuit and light-emitting diode luminance adjustment circuit |
| CN105676929A (en) * | 2014-11-21 | 2016-06-15 | 南方电网科学研究院有限责任公司 | Novel LDO starting circuit preventing output overshoot |
| CN105676929B (en) * | 2014-11-21 | 2017-01-04 | 南方电网科学研究院有限责任公司 | A kind of anti-output rushes LDO start-up circuit |
| CN104767362A (en) * | 2015-03-27 | 2015-07-08 | 绵阳豪迈电子科技有限公司 | Parking lot management system drive circuit |
| CN106160158B (en) * | 2015-03-31 | 2018-09-18 | 丁智博 | A kind of power supply device of electric automobile and a kind of motor vehicle |
| CN106160158A (en) * | 2015-03-31 | 2016-11-23 | 丁智博 | A kind of power supply device of electric automobile and a kind of motor vehicles |
| CN104852577A (en) * | 2015-06-10 | 2015-08-19 | 灿瑞半导体(上海)有限公司 | Step-down DC converter |
| CN104852577B (en) * | 2015-06-10 | 2017-06-27 | 上海灿瑞科技股份有限公司 | A kind of decompression DC converter |
| US9742268B2 (en) | 2015-07-01 | 2017-08-22 | Intel Corporation | Boost converter circuit and a method for controlling a boost converter |
| CN104953836A (en) * | 2015-07-01 | 2015-09-30 | 开曼群岛威睿电通股份有限公司 | Boost converter circuit and boost converter circuit control method |
| CN107742983A (en) * | 2017-11-29 | 2018-02-27 | 上海南麟电子股份有限公司 | Share constant current constant voltage control module, reduction voltage circuit and the compensation method of compensation |
| CN107742983B (en) * | 2017-11-29 | 2023-05-26 | 上海南麟电子股份有限公司 | Constant-current constant-voltage control module, voltage reducing circuit and compensation method for sharing compensation |
| CN112532032A (en) * | 2020-11-27 | 2021-03-19 | 成都启臣微电子股份有限公司 | Overshoot prevention circuit for constant voltage control power supply |
| CN113258536A (en) * | 2021-07-08 | 2021-08-13 | 上海芯龙半导体技术股份有限公司南京分公司 | Output overshoot suppression circuit and switching power supply chip |
| CN115378246A (en) * | 2022-09-02 | 2022-11-22 | 芯洲科技（北京）有限公司 | Switching power supply with overshoot protection |
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| CN103532378B (en) | 2016-12-21 |
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