CN108599567A - A kind of quick voltage stabilizing implementation method and Switching Power Supply of Switching Power Supply - Google Patents
A kind of quick voltage stabilizing implementation method and Switching Power Supply of Switching Power Supply Download PDFInfo
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- CN108599567A CN108599567A CN201810435863.XA CN201810435863A CN108599567A CN 108599567 A CN108599567 A CN 108599567A CN 201810435863 A CN201810435863 A CN 201810435863A CN 108599567 A CN108599567 A CN 108599567A
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 238000007600 charging Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention provides a kind of quick voltage stabilizing implementation methods of Switching Power Supply：According to feedback voltage VFBWith Switching Power Supply internal reference voltage VREFGenerate error amplification signal VCOMP；Feedback voltage VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；Compare the VCOMPWith VADDSize controls the break-make of main switch；Compare the VCOMPWith VADD, judge the working condition of Switching Power Supply；When judging Switching Power Supply for steady state operating conditions, the turn-on time of main switch and minimum turn-off time are constant；When judging Switching Power Supply in load current step, i.e. VCOMPMore than VADD, when being dynamic behavior, the turn-on time of main switch increases, and the minimum turn-off time reduces, and then accelerates dynamic corresponding speed, realizes quick voltage stabilizing.The present invention also provides a kind of Switching Power Supplies using the above method, and judgment module and adjustment module is added, and can determine whether the working condition of Switching Power Supply, and then adjust make-and-break time and the reduction of minimum turn-off time of main switch, realize quick voltage stabilizing.
Description
Technical field
The present invention relates to Switching Power Supply voltage stabilizing technique field more particularly to a kind of quick voltage stabilizing implementation methods of Switching Power Supply
And Switching Power Supply.
Background technology
With the rapid development of electronic technology, power technology also obtains unprecedented progress.Switching Power Supply with small-sized, light weight and
Efficient feature is widely used among each class of electronic devices.
The control mode of Switching Power Supply can be divided into fixed-frequency control and frequency control.In traditional frequency control pattern, master opens
The turn-on time of pass is fixed, and the turn-off time changes with output voltage and load variation, compared to fixed-frequency control pattern, frequency conversion
Control model withouts waiting for the arrival of next cycle in load current step, when output voltage changes, can pass through shortening
Turn-off time quickly opens next cycle, therefore response speed is relatively faster.But with the development of technology, traditional frequency conversion
The response speed of control model can no longer meet demand, have to be hoisted.
Invention content
The present invention can contract in order to solve the above technical problems, provide a kind of quick voltage stabilizing implementation method of Switching Power Supply
The turn-on time of short main switch, this method include：
Switching Power Supply is equipped with feedback circuit, obtains feedback voltage VFB, according to feedback voltage VFBWith Switching Power Supply internal reference
Voltage VREFGenerate error amplification signal VCOMP；
Feedback voltage VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；
Compare the VCOMPWith VADDSize controls the break-make of main switch；
Compare the VCOMPWith VADD, judge the working condition of Switching Power Supply；When judging Switching Power Supply for steady state operating conditions
When, the turn-on time of main switch and minimum turn-off time are constant；When judging Switching Power Supply in load current step, i.e. VCOMPMore than VADD,
For dynamic behavior when, the turn-on time of main switch increases, and the minimum turn-off time reduces, and then accelerates dynamic corresponding speed,
Realize quick voltage stabilizing.
The present invention also provides a kind of Switching Power Supply using the above method, Switching Power Supply provides output voltage for load
VOUT, Switching Power Supply includes feedback module, comparison module, drive module, turn-on time control module, minimum turn-off time control
Module, judgment module and adjustment module.
The feedback module obtains feedback voltage VFB, according to VFBWith Switching Power Supply internal reference voltage VREFError is generated to put
Big signal VCOMP, by VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；
The comparison module VADDAnd VCOMP, determine the break-make of main switch, and send and instruct to drive module；
The drive module receives the break-make of the instruction realization main switch of the comparison module；
The turn-on time control module controls the turn-on time of each period main switch；
The minimum turn-off time control module controls the minimum turn-off time of each period main switch；
The judgment module is according to VADDAnd VCOMPJudge the working condition of each cycle switch power supply；
The adjustment module accordingly adjusts turn-on time and minimum turn-off time according to above-mentioned judgment module judging result；When
The VOUTFor stable state when, the adjustment module does not work；As the VOUTFor step state when, i.e. VCOMPMore than VADD, institute
It states adjustment module and controls the turn-on time control module increase turn-on time, and control the minimum turn-off time control and reduce
The minimum turn-off time shortens the time of a cycle, accelerates dynamic responding speed so that Switching Power Supply can be quickly stablizes defeated
Go out voltage.
Further, the feedback module includes error amplifier, ripple generator；The error amplifier is relatively more described
VFBAnd VREF, and V is generated according to the difference of the twoCOMP；The ripple generator export stability triangle wave and with the VFBSuperposition,
Generate VADD, when ensureing Switching Power Supply stable state, the VADDMore than the VCOMP；The comparison module compares including first
Device, the first comparator VCOMPAnd VADD。
Further, the drive module includes logic element and driving circuit.
Further, the turn-on time control module includes and input voltage VINRelevant current source I1, it capacitance C1, opens
Close K1 and the second comparator；Described one end C1 ground connection, the other end connect the I1 and charge, the K1 parallel connections C1, and described the
Two comparators compare the current potential of C1 and preset current potential V1, when the current potential of C1 reaches V1, the turn-on time control module
It controls the drive module and closes main switch, while the K1 is closed, when starting to the next period, K1 is disconnected, and I1 is again to C1
Charging, forms the fixation turn-on time in each period repeatedly.
The minimum turn-off time control module is similar with turn-on time control module, including current source I2, capacitance C2, opens
K2 and third comparator, the one end C2 ground connection are closed, the other end connects the I2 and charges, the K2 parallel connections C2, and described the
Three comparators compare the current potential of C2 and preset current potential V2, when the current potential of C2 reaches V2, the minimum turn-off time control
Module controls the drive module and opens main switch, while the K2 is closed, and when starting to the next period, K2 is disconnected.
Further, the judgment module is sentenced including the 4th comparator, the 4th comparator VCOMPWith
VADD；The adjustment module includes current source I3, current source I4, switch K3, switch K4.
The I3 connects the C1 by K3, and the I3 current directions are opposite with the I1 current directions；The I4 passes through
The K4 connections C2；The directions I4 are identical as the directions I2；4th comparator connects and controls the K3 and K4；When
VCOMPMore than VADDWhen, the K3 and K4 are closed, and the I3 offsets I1, and the I4 is superimposed I2, and the C1 charging time is elongated, C2 chargings
Time shortens, and turn-on time is elongated, and the minimum turn-off time shortens, and accelerates the response speed of control circuit.
By the above-mentioned description of this invention it is found that compared to the prior art, the invention has the advantages that：
The application proposes a kind of quick voltage stabilizing implementation method and Switching Power Supply of Switching Power Supply, by adding in Switching Power Supply
Enter judgment module and adjustment module, can determine whether the working condition of Switching Power Supply, and then the logical of main switch is adjusted by adjustment module
The disconnected time, work as load current step, when Switching Power Supply be in dynamic behavior, the turn-on time increase of main switch, when minimum turn-off
Between reduce, and then accelerate dynamic corresponding speed, realize quick voltage stabilizing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.
Wherein：
Fig. 1 is the circuit diagram of traditional frequency control pattern；
Fig. 2 is the quick voltage stabilizing step schematic diagram of Switching Power Supply of the present invention；
Fig. 3 is the circuit diagram of Switching Power Supply of the present invention；
Fig. 4 is judgment module of the present invention and the circuit diagram of adjustment module；
Fig. 5 is the fixed turn-on time framework oscillogram of tradition；
Fig. 6 is the turn-on time framework oscillogram of the present invention；
Symbolic indication in Fig. 1 is：11- resistance, 12- error amplifiers, 13- ripple generators, 21- first comparators,
31- logic elements, 32- driving circuits, 40- turn-on time control modules, 50- minimum turn-off time control modules, 60- judge mould
Block, 70- adjustment modules.
Specific implementation mode
In order to keep technical problems, technical solutions and advantages to be solved clearer, clear, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The control mode of Switching Power Supply can be divided into fixed-frequency control and frequency control, referring to Fig. 1, traditional frequency control mould
The main switch turn-on time of formula is fixed, and the turn-off time, operation principle was as follows as output voltage and load change and change：It is defeated
Go out voltage VOUTFeedback voltage V is obtained by the partial pressure of resistance 11FB, error amplifier 12 is to VFBWith Switching Power Supply internal reference voltage
VREFDifference be amplified to obtain error amplification signal VCOMP, ripple generator 13 generate with certain amplitude triangular wave with
VFBIt is overlapped to obtain ripple superimposed signal VADD, VCOMPWith VADDThe shutdown of each period main switch is determined by comparing device, often
The turn-on time of a period main switch is determined by turn-on time control module 40.Minimum turn-off time control module 50 can be kept away simultaneously
Exempt from the phenomenon that 100% duty ratio occur.The main switch turn-on time of the control loop is fixed, the turn-off time with output voltage and
Load variation, therefore switching frequency and be not fixed.Compared to fixed-frequency control pattern, frequency control need not be waited in load current step
Wait for the arrival of next cycle, output voltage can quickly open next cycle when changing, therefore response speed is faster.
Referring to Fig. 2, the application provides a kind of quick voltage stabilizing implementation method of Switching Power Supply, leading for main switch can be shortened
Logical time, this method include：
Switching Power Supply is equipped with feedback circuit, obtains feedback voltage VFB, according to feedback voltage VFBWith Switching Power Supply internal reference
Voltage VREFGenerate error amplification signal VCOMP；
Feedback voltage VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；
Compare the VCOMPWith VADDSize controls the break-make of main switch；
Compare the VCOMPWith VADD, judge the working condition of Switching Power Supply；When judging Switching Power Supply for steady state operating conditions
When, the turn-on time of main switch and minimum turn-off time are constant；When judging Switching Power Supply in load current step, i.e. VCOMPMore than VADD,
For dynamic behavior when, the turn-on time of main switch increases, and the minimum turn-off time reduces, and then accelerates dynamic corresponding speed,
Realize quick voltage stabilizing.
Referring to Fig. 3, the present invention also provides a kind of Switching Power Supply using the above method, Switching Power Supply provides for load
Output voltage VOUT, Switching Power Supply includes feedback module, comparison module, drive module, turn-on time control module 40, minimum pass
Disconnected time control module 50, judgment module 60 and adjustment module 70.
The feedback module includes error amplifier 12, ripple generator 13；12 V of the error amplifierFB
And VREF, and V is generated according to the difference of the twoCOMP；The ripple generator 13 export stability triangle wave and with the VFBSuperposition,
Generate VADD, when ensureing Switching Power Supply stable state, the VADDMore than the VCOMP；The comparison module includes first comparator
21,21 V of the first comparatorCOMPAnd VADD。
The drive module includes logic element 31 and driving circuit 32.
Referring to Fig. 4, the turn-on time control module 40 includes and input voltage VINRelevant current source I1, capacitance
C1, switch K1 and the second comparator；The one end C1 ground connection, the other end connect the I1 and charge, the K1 parallel connections C1, institute
The second comparator is stated to compare the current potential of C1 and preset current potential V1, when the current potential of C1 reaches V1, the turn-on time control
Module 40 controls the drive module and closes main switch, while the K1 is closed, and when starting to the next period, K1 is disconnected, and I1 is again
It is secondary to charge to C1, the fixation turn-on time in each period is formed repeatedly.
The minimum turn-off time control module 50 is similar with turn-on time control module 40, including current source I2, capacitance
C2, switch K2 and third comparator, the one end C2 ground connection, the other end connect the I2 and charge, the K2 parallel connections C2, institute
Third comparator is stated to compare the current potential of C2 and preset current potential V2, when the current potential of C2 reaches V2, the minimum turn-off time
Control module 50 controls the drive module and opens main switch, while the K2 is closed, and when starting to the next period, K2 is disconnected.
The judgment module 60 is sentenced including the 4th comparator, the 4th comparator VCOMPAnd VADD；The tune
It includes current source I3, current source I4, switch K3, switch K4 to save module 70.
The I3 connects the C1 by K3, and the I3 current directions are opposite with the I1 current directions；The I4 passes through
The K4 connections C2；The directions I4 are identical as the directions I2；4th comparator connects and controls the K3 and K4；When
VCOMPMore than VADDWhen, the K3 and K4 are closed, and the I3 offsets I1, and the I4 is superimposed I2, and the C1 charging time is elongated, C2 chargings
Time shortens, and turn-on time is elongated, and the minimum turn-off time shortens, and accelerates the response speed of control circuit.
The operation principle of the Switching Power Supply is as follows：The feedback module obtains feedback voltage VFB, according to VFBWith Switching Power Supply
Internal reference voltage VREFGenerate error amplification signal VCOMP, by VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal
VADD；
The comparison module VADDAnd VCOMP, determine the break-make of main switch, and send and instruct to drive module；
The drive module receives the break-make of the instruction realization main switch of the comparison module；
The turn-on time control module 40 controls the turn-on time of each period main switch；
The minimum turn-off time control module 50 controls the minimum turn-off time of each period main switch；
The judgment module 60 is according to VADDAnd VCOMPJudge the working condition of each cycle switch power supply；
When the adjustment module 70 accordingly adjusts turn-on time with minimum turn-off according to 60 judging result of above-mentioned judgment module
Between；As the VOUTFor stable state when, the adjustment module 70 does not work；As the VOUTFor step state when, i.e. VCOMPGreatly
In VADD, the adjustment module 70 controls the turn-on time control module 40 and increases turn-on time, and controls the minimum turn-off
Time control reduces the minimum turn-off time, shortens the time of a cycle, accelerates dynamic responding speed so that Switching Power Supply can
Stabilizing the output voltage quickly.
Please referring to Fig. 5 and Fig. 6, wherein Fig. 5 is the fixed turn-on time framework oscillogram of tradition, when load increases suddenly,
Output capacitance supplying power for outside at this time, output voltage VOUTDecline, feedback voltage VFBDecline, error amplification signal VCOMPRise therewith,
Ripple superimposed signal VADDDecline, loop enters variable frequency work at this time, and main switch each period is charged with fixing turn-on time, most
Small turn-off time afterflow, compared with normal work, frequency increases to obtain capability of fast response.Fig. 6 is opening for the application proposition
The framework oscillogram in powered-down source, when load increases suddenly, loop still enters variable frequency work, and loop detection is put to error at this time
Big signal VCOMPMore than ripple superimposed signal VADD, loop is into the second working condition, by the turn-on time increase of main switch, most
The small turn-off time reduces so that inductive current supplements energy, output voltage V to output as early as possibleOUTFall become smaller, and energy
It is enough to restore normal value in the shorter time, further speed up response speed.
In conclusion compared to the prior art, a kind of quick voltage stabilizing implementation method of Switching Power Supply proposed by the present invention and
Switching Power Supply can determine whether the working condition of Switching Power Supply, in turn by the way that judgment module and adjustment module are added in Switching Power Supply
The make-and-break time that main switch is adjusted by adjustment module, works as load current step, when Switching Power Supply is in dynamic behavior, main switch
Turn-on time increase, the minimum turn-off time reduce, and then accelerate dynamic corresponding speed, realize quick voltage stabilizing.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is used, or without changing
Other occasions are directly applied to by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (6)
1. a kind of quick voltage stabilizing implementation method of Switching Power Supply, which is characterized in that
According to feedback voltage VFBWith Switching Power Supply internal reference voltage VREFGenerate error amplification signal VCOMP；
Feedback voltage VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；
Compare the VCOMPWith VADD, control the break-make of main switch；
Compare the VCOMPWith VADD, judge the working condition of Switching Power Supply；It is main when judging Switching Power Supply for steady state operating conditions
The turn-on time of switch and minimum turn-off time are constant；It is main when being dynamic behavior when judging Switching Power Supply in load current step
The turn-on time of switch increases, and the minimum turn-off time reduces, and then accelerates dynamic corresponding speed, realizes quick voltage stabilizing.
2. a kind of Switching Power Supply, Switching Power Supply provides output voltage V for loadOUT, which is characterized in that Switching Power Supply includes feedback
Module, comparison module, drive module, turn-on time control module, minimum turn-off time control module, judgment module and adjusting mould
Block；
The feedback module obtains feedback voltage VFB, according to VFBWith Switching Power Supply internal reference voltage VREFGenerate error amplification letter
Number VCOMP, by VFBIt is superimposed with the ripple voltage of input and generates ripple superimposed signal VADD；
The comparison module VADDAnd VCOMP, determine the break-make of main switch；
The drive module receives the break-make of the instruction realization main switch of the comparison module；
The turn-on time control module controls the turn-on time of each period main switch；
The minimum turn-off time control module controls the minimum turn-off time of each period main switch；
The judgment module judges the working condition of each cycle switch power supply；
The adjustment module accordingly adjusts turn-on time and minimum turn-off time according to above-mentioned judgment module judging result；
As the VOUTFor stable state when, the adjustment module does not work；As the VOUTFor step state when, the adjusting mould
Block controls the turn-on time control module and increases turn-on time, and controls the minimum turn-off time control and reduce minimum turn-off
Time accelerates dynamic responding speed.
3. a kind of Switching Power Supply according to claim 2, which is characterized in that the feedback module includes error amplifier,
Ripple generator；The error amplifier VFBAnd VREF, and V is generated according to the difference of the twoCOMP；The ripple production
Raw device output stability triangle wave and with the VFBSuperposition generates VADD；The comparison module includes first comparator, and described first
The comparator VCOMPAnd VADD。
4. a kind of Switching Power Supply according to claim 3, which is characterized in that the drive module includes logic element and drive
Dynamic circuit.
5. a kind of Switching Power Supply according to claim 3, which is characterized in that the turn-on time control module include with it is defeated
Enter voltage VINRelevant current source I1, capacitance C1, switch K1 and the second comparator；The one end C1 ground connection, the other end connect institute
It states I1 to charge, the K1 parallel connections C1, second comparator compares the current potential of C1 and presets current potential V1, when the electricity of C1
When position reaches V1, the turn-on time control module controls the drive module and closes main switch, while the K1 is closed, and is arrived down
When a period starts, K1 is disconnected；The minimum turn-off time control module includes current source I2, capacitance C2, switch K2 and third
Comparator, the one end C2 ground connection, the other end connect the I2 and charge, the K2 parallel connections C2, the third comparator ratio
Current potential compared with C2 and current potential V2 is preset, when the current potential of C2 reaches V2, the minimum turn-off time control module controls institute
It states drive module and opens main switch, while the K2 is closed, when starting to the next period, K2 is disconnected.
6. a kind of Switching Power Supply according to claim 5, which is characterized in that the judgment module is sentenced to be compared including the 4th
Device, the 4th comparator VCOMPAnd VADD；The adjustment module includes current source I3, current source I4, switch K3,
Switch K4；The I3 connects the C1 by K3, and the directions I3 are opposite with the directions I1；Described in the I4 is connected by K4
C2；The directions I4 are identical as the directions I2；4th comparator connects and controls the K3 and K4；Work as VCOMPIt is more than
VADDWhen, the K3 and K4 are closed, and the I3 offsets I1, and the I4 is superimposed I2, and the C1 charging time is elongated, and the C2 charging time shortens,
Turn-on time is elongated, and the minimum turn-off time shortens, and accelerates the response speed of control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435863.XA CN108599567B (en) | 2018-05-09 | 2018-05-09 | Quick voltage stabilization implementation method of switching power supply and switching power supply |
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|---|---|---|---|
| CN201810435863.XA CN108599567B (en) | 2018-05-09 | 2018-05-09 | Quick voltage stabilization implementation method of switching power supply and switching power supply |
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| CN108599567B CN108599567B (en) | 2024-05-14 |
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| CN102427294A (en) * | 2011-09-14 | 2012-04-25 | 杭州矽力杰半导体技术有限公司 | Constant-time control method and control circuit for switch type adjuster as well as switch type adjuster using control circuit |
| CN102655368A (en) * | 2012-05-02 | 2012-09-05 | 常州大学 | Method and device for controlling constant turn-off time of switching power supply |
| CN103023326A (en) * | 2012-12-11 | 2013-04-03 | 矽力杰半导体技术(杭州)有限公司 | Constant time control method, control circuit and switching regulator using same |
| CN103427636A (en) * | 2013-08-27 | 2013-12-04 | 电子科技大学 | Transient response enhancement control circuit used for switch power source |
| CN208401739U (en) * | 2018-05-09 | 2019-01-18 | 厦门元顺微电子技术有限公司 | A kind of Switching Power Supply |
-
2018
- 2018-05-09 CN CN201810435863.XA patent/CN108599567B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427294A (en) * | 2011-09-14 | 2012-04-25 | 杭州矽力杰半导体技术有限公司 | Constant-time control method and control circuit for switch type adjuster as well as switch type adjuster using control circuit |
| CN102655368A (en) * | 2012-05-02 | 2012-09-05 | 常州大学 | Method and device for controlling constant turn-off time of switching power supply |
| CN103023326A (en) * | 2012-12-11 | 2013-04-03 | 矽力杰半导体技术(杭州)有限公司 | Constant time control method, control circuit and switching regulator using same |
| US20140159689A1 (en) * | 2012-12-11 | 2014-06-12 | Silergy Semiconductor Technology (Hangzhou) Ltd | Constant time control method, control circuit and switch regulator using the same |
| CN103427636A (en) * | 2013-08-27 | 2013-12-04 | 电子科技大学 | Transient response enhancement control circuit used for switch power source |
| CN208401739U (en) * | 2018-05-09 | 2019-01-18 | 厦门元顺微电子技术有限公司 | A kind of Switching Power Supply |
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