CN207475398U - Continuous conduction mode double hysteresis pulse-sequence control device - Google Patents
Continuous conduction mode double hysteresis pulse-sequence control device Download PDFInfo
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Abstract
The utility model discloses a kind of continuous conduction mode double hysteresis pulse-sequence control devices, by limiting the size of capacitance current peak value and valley, complete the control to converter switches pipe, realize the adjusting to exporting branch.Compared with traditional pulse train control switch converters, the utility model has many advantages, such as that the combination of pulse cycle is optimal, and no low-frequency oscillation and load transient performance are good, available for controlling a variety of switch converters, such as：Buck converters, Boost, Buck boost converters, Flyback converters, Forward converters etc..
Description
Technical field
The utility model is related to power electronic equipments, especially continuous conduction mode double hysteresis pulse-sequence control device.
Background technology
Pulse train (pulse train, PT) modulation is the switch converters of a kind of novel non-linearity occurred in recent years
Modulator approach.Its control thought is：In each switch periods initial time, controller detection converter output voltage, and judge
Its magnitude relationship between voltage reference value, if output voltage is less than voltage reference value, controller will generate a duty ratio
Larger high energy pulse acts on switching tube as drive signal；Conversely, if output voltage is more than voltage reference value, controller
The smaller low energy pulses of duty ratio will be generated.High and low energy pulse is realized by certain combining form becomes switch
The control of parallel operation.Relative to traditional pulse width modulation (pulse width modulation, PWM) and pulse frequency modulated
(pulse frequency modulation, PFM) technology, PT modulation is fast with transient response speed, and controller architecture is simple,
The advantages that without compensation device.But its stable region is not wide enough, in continuous current mode (continuous conduction
Mode, CCM) conduction mode, when output capacitance equivalent series resistance (equivalent series resistance, ESR) is
When zero or relatively low, converter there are low-frequency oscillation, the amplitude variation of output voltage and inductive current greatly, the stable state of converter
Precision is poor with mapping.
Utility model content
The purpose of this utility model is to provide a kind of control device of switch converters, is allowed to overcome existing pulse train control
Technical disadvantages when system is operated in continuous current mode conduction mode, have that output voltage steady state ripple is small, pulse sequence during stable state
The combination perseverance of row cycle period is " 1 high power pulse+1 is low powder pulsed ", there is no low-frequency oscillation, stability and
The advantages that strong antijamming capability, load transient performance is good, suitable for the switch converters of various topological structures.
The utility model provides a kind of realization continuous conduction mode double hysteresis pulse-sequence control device, including voltage detecting
Circuit VS, current detection circuit IS, the first pulse selector PS1, the second pulse selector PS2, pulse generator PGC, first
Stagnant ring modulator PGH, the second stagnant ring modulator PGL and driving circuit DR；The voltage detecting circuit VS, pulse generator
PGC is connected respectively with the first pulse selector PS1；Current detection circuit IS is stagnant with the first stagnant ring modulator PGH and second respectively
Ring modulator PGL is connected；First stagnant ring modulator PGH, the second stagnant ring modulator PGL, the first pulse selector PS1 are respectively with
Two pulse selector PS2 are connected；Second pulse selector PS2 is connected with driving circuit DR.
The first above-mentioned pulse selector PS1's specifically comprises：By first comparator CMP1 and the first trigger DFF1
Composition；The output voltage signal V detectedoIt is connected with first comparator CMP1 negative polarity end, output voltage a reference value VrefWith
One comparator CMP1 positive ends are connected；First comparator CMP1 is connected with the D ends of the first trigger DFF1, pulse generator
The signal CC that PGC is generated is connected with the C-terminal of the first trigger DFF1.
The second above-mentioned pulse selector PS2's specifically comprises：By first and door AND1, second and door AND2 and/or door
OR is formed；The pulse signal V that pulse generator PGH is generatedPH, the first pulse selector generate pulse signal HH and first and door
The input terminal of AND1 is connected；The pulse signal V that first stagnant ring modulator PGL is generatedPL, the first pulse selector generate pulse letter
Number LL is connected with second with the input terminal of door AND2；First with the output terminal of door AND1, second and door AND2 with or door OR it is defeated
Enter end to be connected.
The first above-mentioned stagnant ring modulator PGH's specifically comprises：By the second comparator CMP2, third comparator CMP3 and
Second trigger RSFF2 is formed；The capacitance current signal i detectedCIt is connected with the second comparator CMP2 positive ends, first peak
It is worth capacitance current reference value Iref-PHIt is connected with the second comparator CMP2 negative polarity end；The capacitance current signal i detectedCWith
Three comparator CMP3 negative polarity ends are connected, the first terminal valley point capacitance current reference value Iref-VHWith third comparator CMP3 positive ends
It is connected；The output terminal of second comparator CMP2 is connected with the R ends of the second trigger RSFF2, the output terminal of third comparator CMP3
It is connected with the S ends of the second trigger RSFF2.
The concrete composition of the second above-mentioned stagnant ring modulator PGL is similar with the composition of the above-mentioned first stagnant ring modulator PGH, area
It is not in the second peak capacitor current reference signal Iref-PLIt is connected with the negative polarity end of the 4th comparator CMP4, the second valley
Capacitance current reference value Iref-VLIt is connected with the 5th comparator CMP5 positive ends.
The control method of the continuous conduction mode double hysteresis pulse-sequence control device is, in each switch periods, inspection
Output voltage is surveyed, obtains signal Vo, the electric current of output filter capacitor is detected, obtains signal ic；Meanwhile pulse generator PGC is generated
Pulse signal CC；By Vo, CC and output voltage a reference value VrefBe sent to the first pulse selector PS1 generate pulse signal HH and
LL；By iC, the first peak capacitor current reference value Iref-PHWith the first terminal valley point capacitance current reference value Iref-VHIt is stagnant to be sent to first
Ring modulator PGH generates pulse signal VPH；By iC, the second peak capacitor current reference value Iref-PLWith the second terminal valley point capacitance electric current
Reference value Iref-VLIt is sent to the second stagnant ring modulator PGL and generates pulse signal VPL；By VPH、VPL, HH and LL be sent to the second arteries and veins
It rushes selector PS2 and generates pulse signal VP, to control the turn-on and turn-off of converter switches pipe.
Wherein, the first peak capacitor current reference value Iref-PH, the second peak capacitor current reference value Iref-PL, first
Terminal valley point capacitance current reference value Iref-VHWith the second terminal valley point capacitance current reference value Iref-VLFor preset capacitance current a reference value, it is
The capacitance current peak value or valley directly set.
Further, the first peak capacitor current reference value Iref-PH, the second peak capacitor current reference value Iref-PL、
First terminal valley point capacitance current reference value Iref-VHWith the second terminal valley point capacitance current reference value Iref-VLFor by inputting, exporting feedback volume production
The raw capacitance current peak value or valley related with input quantity or output quantity.
Combination of the utility model with pulse cycle is optimal, no low-frequency oscillation and load transient performance
The advantages that good, available for controlling a variety of switch converters, such as：Buck converters, Boost, Buck-boost transformation
Device, Flyback converters, Forward converters etc..
Compared with prior art, the beneficial effects of the utility model are：
First, the utility model provides a kind of simple and reliable pulse train control for continuous conduction mode switch converters
Method overcomes traditional pulse train control continuous conduction mode switch converters there are the phenomenon that low-frequency oscillation, stability
More preferably, reliability higher.
2nd, pulse sequence control method provided by the utility model when load changes, can be adjusted out quickly
The turn-on and turn-off of pipe are closed, the variable quantity of output voltage is small.
3rd, continuous conduction mode switch converters pulse sequence control method provided by the utility model, pulse train
The combination perseverance of cycle period is " 1 high power pulse+1 is low powder pulsed ", and the combination rule of high and low power pulse is optimal.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is one controling circuit structure block diagram of the utility model embodiment.
Fig. 2 is the circuit structure block diagram of the first pulse selector PS1 of the utility model embodiment one.
Fig. 3 is the circuit structure block diagram of the second pulse selector PS2 of the utility model embodiment one.
Fig. 4 is the circuit structure block diagram of the first pulse signal producer PGC of the utility model embodiment one.
Fig. 5 is the circuit structure block diagram of the second pulse signal producer PGH of the utility model embodiment one.
Fig. 6 is the circuit structure block diagram of the third pulse signal producer PGL of the utility model embodiment one.
Fig. 7 is the circuit structure block diagram of the utility model embodiment one.
Main waveform diagram when Fig. 8 is the Buck converter steady operations of the utility model embodiment one.
Fig. 9 is the stable state time-domain-simulation waveform that traditional PT controls Buck converters.
Figure 10 is the stable state time-domain-simulation waveform of the Buck converters of terminal valley point capacitance electric current PT controls.
Figure 11 is the circuit structure block diagram of the first pulse signal producer PGC of the utility model embodiment two.
Figure 12 is the circuit structure block diagram of the first pulse signal producer PGC of the utility model embodiment three.
Figure 13 is the circuit structure block diagram of the utility model embodiment four.
Specific embodiment
Further detailed description is done to the utility model below by specific example with reference.
Embodiment one
Fig. 1 shows that a kind of specific embodiment of the utility model is：Continuous conduction mode double hysteresis pulse train controls
Device, mainly by voltage detecting circuit VS, current detection circuit IS, the first pulse selector PS1, the second pulse selector PS2,
Pulse generator PGC, the first stagnant ring modulator PGH, the second stagnant ring modulator PGL and driving circuit DR compositions；In each switch
In period, the output voltage of detection output branch obtains signal Vo, the filter capacitor electric current of output branch is detected, obtains signal
ic；Meanwhile pulse generator PGC generates pulse signal CC；By Vo, CC and output voltage a reference value VrefIt is sent to the first pulse choosing
It selects device PS1 and generates pulse signal HH and LL；By iC, the first peak capacitor current reference value Iref-PHWith the first terminal valley point capacitance electric current
Reference value Iref-VHIt is sent to the first stagnant ring modulator PGH and generates pulse signal VPH；By iC, the second peak capacitor current a reference value
Iref-PLWith the second terminal valley point capacitance current reference value Iref-VLIt is sent to the second stagnant ring modulator PGL and generates pulse signal VPL；It will
VPH、VPL, HH and LL be sent to the second pulse selector PS2 and generate pulse signal VP, to control the conducting of converter switches pipe
And shutdown.
Fig. 2 shows the first pulse selector PS1's of this example specifically comprises：It is touched by first comparator CMP1 and first
Send out device DFF1 compositions；The output voltage signal V detectedoIt is connected with first comparator CMP1 negative polarity end, output voltage benchmark
Value VrefIt is connected with first comparator CMP1 positive ends；First comparator CMP1 is connected with the D ends of the first trigger DFF1, arteries and veins
The signal CC for rushing generator PGC generations is connected with the C-terminal of the first trigger DFF1.
Fig. 3 shows that the second pulse selector PS2's of this example specifically comprises：By first and door AND1, second and door
AND2 and/or door OR compositions；The pulse signal V that pulse generator PGH is generatedPH, the first pulse selector generate pulse signal HH
It is connected with first with the input terminal of door AND1；The pulse signal V that first stagnant ring modulator PGL is generatedPL, the first pulse selector production
Raw pulse signal LL is connected with second with the input terminal of door AND2；First with the output terminal of door AND1, second and door AND2 and
Or the input terminal of door OR is connected.
Fig. 4 shows that the pulse generator PGC's of this example specifically comprises：By switching tube pulse signal VPComposition, pulse letter
Number VPAs signal CC.
Fig. 5 shows that the first stagnant ring modulator PGH's of this example specifically comprises：Compared by the second comparator CMP2, third
Device CMP3 and the second trigger RSFF2 compositions；The capacitance current signal i detectedCWith the second comparator CMP2 positive ends phases
Even, the first peak capacitor current reference value Iref-PHIt is connected with the second comparator CMP2 negative polarity end；The capacitance current letter detected
Number iCIt is connected with third comparator CMP3 negative polarity end, the first terminal valley point capacitance current reference value Iref-VHWith third comparator CMP3
Positive ends are connected；The output terminal of second comparator CMP2 is connected with the R ends of the second trigger RSFF2, third comparator CMP3
Output terminal be connected with the S ends of the second trigger RSFF2.
Fig. 6 shows, the concrete composition of the second stagnant ring modulator PGL of this example and the group of the above-mentioned first stagnant ring modulator PGH
Into similar, difference lies in the second peak capacitor current reference signal Iref-PLIt is connected with the negative polarity end of the 4th comparator CMP4,
Second terminal valley point capacitance current reference value Iref-VLIt is connected with the 5th comparator CMP5 positive ends.
This example uses the device of Fig. 7, can easily and quickly realize above-mentioned control method.Fig. 6 shows, this example continuous conduction
Pattern double hysteresis pulse-sequence control device, is made of the control device of converter TD and switching tube S.
Its working process and principle of the device of this example are：
Control device using continuous conduction mode double hysteresis pulse train control working process and principle be：Fig. 1-7 shows,
When switch periods start, the output voltage V of samplingoWith output voltage a reference value VrefIt is compared, if output voltage VoIt is less than
Output voltage a reference value Vref, then the output signal HH of the first pulse selector PS1 is high level, while pulse generator PGH
Output signal VPHFor high level, the output signal V of the second pulse selector PS2pFor high level, switching tube S conductings, capacitance current
iCRise；Work as iCRise to the first peak capacitor current reference value Iref-PHWhen, the output signal V of the first stagnant ring modulator PGHPH
Low level is become from high level, the output signal HH of the first pulse selector PS1 keeps high level, the second pulse selector PS2
Output signal VPLow level, switching tube S shutdowns, capacitance current i are become from high levelCDecline；Work as iCDrop to the first valley electricity
Capacitance current reference value Iref-VHWhen, the output signal V of the first stagnant ring modulator PGHPHHigh level, the first pulse are become from low level
The output signal HH of selector PS1 then becomes low level from high level, and switch periods terminate；In this switch periods, second
The output signal V of stagnant ring modulator PGLPLThe second pulse selector output signal V is not influencedPState；If output voltage VoGreatly
In output voltage a reference value Vref, then the output signal HH of the first pulse selector PS1 is low level, and LL is high level, and second is stagnant
The output signal V of ring modulator PGLPLFor high level, the output signal V of the second pulse selector PS2pFor high level, switching tube S
Conducting, capacitance current iCRise；Work as iCRise to the second peak capacitor current reference value Iref-PLWhen, VPLBecome low from high level
Level, HH keep low level, the output signal V of the second pulse selector PS2PLow level is become from high level, switching tube S is closed
It is disconnected, capacitance current iCDecline；Work as iCDrop to the second terminal valley point capacitance current reference value Iref-VLWhen, the second stagnant ring modulator PGL's
Output signal VPLHigh level is become from low level, the output signal HH of the first pulse selector PS1 then becomes high electricity from low level
Flat, switch periods terminate；In this switch periods, the output signal V of the first stagnant ring modulator PGLPHThe second pulse is not influenced
Selector output signal VPState.
First pulse selector PS1 completes the generation and output of signal HH, LL：Fig. 2 shows first comparator CMP1 will be defeated
Go out voltage VoWith output voltage a reference value VrefIt is compared, as output voltage VoLess than output voltage a reference value VrefWhen, the first ratio
It is high level compared with device CMP1 outputs, conversely, then first comparator CMP1 outputs are low level；When pulse signal CC rising edges arrive
When, the C-terminal of the first trigger DFF1 inputs a rising edge, according to the operation principle of d type flip flop：The Q of first trigger DFF1
The state of end output signal HH and D ends input signal is consistent, and signal HH is in VPNext rising edge arrive before keep
Constant, the level height of the Q1 ends output signal LL of the first trigger DFF1 is opposite with signal HH always.
Second pulse selector PS2 completes signal VPSelection and output：Fig. 3 is shown, when the input of first and door AND1
Signal HH is high level, and second when with the input signal LL of door AND2 being low level, first with the output signal of door AND1 and the
The input signal V of one and door AND1PHIt is consistent, the output signal of second and door AND2 keeps low level or door OR output terminals
Signal VPIt is consistent with first with the output signal of door AND1, i.e. VPWith signal VPHIt is consistent；Conversely, then VPWith signal
VPLIt is consistent.
First stagnant ring modulator PGH completes signal VPHGeneration and output：Fig. 5 shows, third comparator CMP3 is by capacitance
Electric current iCWith the first terminal valley point capacitance current reference value Iref-VHIt is compared, works as iCLess than Iref-VHWhen, third comparator CMP3's is defeated
Go out signal S2 for high level, i.e. the S ends input high level of the second trigger RSFF2, according to the operation principle of rest-set flip-flop：Second
The Q ends output signal V of trigger RSFF2PHFor high level；Second comparator CMP2 is by capacitance current iCWith the first peak value capacitance electricity
Flow reference value Iref-PHIt is compared, works as iCMore than Iref-PHWhen, the second comparator CMP2 is exported as high level, i.e. the second trigger
The Q ends output signal V of the R ends input high level of RSFF2, then the second trigger RSFF2PHLow level is become from high level.
Second stagnant ring modulator PGL completes signal VPLGeneration and output, the course of work is similar with above-mentioned PGH, and Fig. 6 shows
Go out its difference lies in：The negative polarity of 4th comparator CMP4 terminates the second peak capacitor current reference value Iref-PL, the 5th comparator
The positive polarity of CMP5 terminates the second terminal valley point capacitance current reference value Iref-VL。
The converter TD of this example is Buck converters.
Time-domain-simulation analysis is carried out to the method for this example with PSIM simulation softwares, it is as a result as follows.
Fig. 8 be using the utility model Buck converters in steady operation, output voltage signal Vo, output voltage base
Calibration signal Vref, capacitance current signal iC, the first peak capacitor current reference signal Iref-PH, the second peak capacitor current benchmark letter
Number Iref-PL, the first terminal valley point capacitance current reference signal Iref-VH, the second terminal valley point capacitance current reference signal Iref-VL, pulse signal
HH, pulse signal VPH, pulse signal VPLAnd drive signal VPBetween relation schematic diagram.It can be seen from the figure that using this reality
Continuous current mode conduction mode can be operated in novel Buck converters.Simulated conditions：Input voltage Vin=14V, electricity
Press a reference value Vref=6V, the first peak capacitor current reference signal Iref-PH=8.66A, the second peak capacitor current reference signal
Iref-PL=0.6A, the first terminal valley point capacitance current reference signal Iref-VH=-6.6A, the second terminal valley point capacitance current reference signal
Iref-VL=-5.6A, inductance L=10 μ H, capacitance Co=470 μ F (its equivalent series resistance is 1n Ω), load resistance Ro=0.9
Ω.As can be seen from Figure 8：During using the utility model, two switch periods form a cycle period, the control of switching tube S
Pulse V processedPThe specific combining form of pulse train be：1VPH+1VPL, realize the optimal combination of high and low power pulse, and converter
There is no low-frequency oscillations.
Fig. 9 is the output voltage signal V that traditional PT controls Buck converterso, inductor current signal iLAnd drive signal VP
Stable state time-domain-simulation waveform.As can be seen from Figure 9：When converter is operated in continuous conduction mode, drive signal VPEven
Continuous output high-power pulse or low powder pulsed, there is low-frequency oscillation in converter.Therefore use the converter of the utility model
It can inhibit the low-frequency oscillation of pulse train control continuous conduction mode switch converters.
Figure 10 is the output voltage signal V that terminal valley point capacitance electric current PT controls Buck converterso, output voltage reference signal
Vref, capacitance current signal iC, the first peak capacitor current reference signal Iref-PH, the second peak capacitor current reference signal
Iref-PL, pulse signal HH, pulse signal VPH, pulse signal VPLAnd drive signal VPStable state time-domain-simulation waveform.From Figure 10
It can be seen that：Although low-frequency oscillation is not present in the control method, 7 switch periods is needed just to form a circulating cycle
Phase, the control pulse V of switching tube SPThe specific combining form of pulse train be：1VPH+2VPL+1VPH+1VPL+1VPH+1VPL, transformation
The pulse cycle time of device is much larger than the cycle period that pulse is controlled in the present embodiment one；It is defeated when circuit parameter is identical
Go out the ripple of voltage and inductive current more than the output voltage and inductive current ripple in the present embodiment one.Therefore use this practicality new
The converter of type can be optimal the combining form of high-low power pulse, and the pulse cycle time is most short, as " 1 Gao Gong
Rate pulse+1 is low powder pulsed ".
Embodiment two
The utility model uses embodiment binary signal flow chart as also shown in Figure 1, embodiment and embodiment one basic one
It causes, is a difference in that：The pulse signal CC that pulse generator PGC is exported in the present embodiment is by switching tube pulse signal VPBy non-
Door NOT is generated.
Figure 11 is shown：The pulse generator PGC of this example is by switching tube pulse signal VPIt is formed with NOT gate NOT.
Embodiment three
The utility model uses three signal flow graph of embodiment as also shown in Figure 1, embodiment and embodiment one basic one
It causes, is a difference in that the producing method of the pulse signal CC of pulse generator PGC outputs.
Figure 12 is shown：The pulse generator PGC of this example is triggered by the 6th comparator CMP6, the 7th comparator CMP7 and the 4th
Device RSFF4 is formed, the capacitance current i detectedCSimultaneously with the 6th comparator CMP6 negative polarity end, the 7th comparator CMP7 anodes
Property end is connected, and the 6th comparator CMP6 positive ends and the 7th comparator CMP7 negative polarity end are grounded, the 6th comparator CMP6
It is connected with the R ends of the 4th trigger RSFF4, the 7th comparator CMP7 is connected with the S ends of the 4th trigger RSFF4.
Example IV
As shown in figure 13, the utility model embodiment four and embodiment one are essentially identical, are a difference in that：This example control
Converter TD is Boost.
The utility model is in addition to available for the switch converters in above example, it can also be used to which Buck-Boost is converted
In a variety of circuit topologies such as device, Flyback converters, Forward converters.
Claims (4)
1. continuous conduction mode double hysteresis pulse-sequence control device, it is characterised in that：It is examined including voltage detecting circuit VS, electric current
Slowdown monitoring circuit IS, the first pulse selector PS1, the second pulse selector PS2, pulse generator PGC, the first stagnant ring modulator PGH,
Second stagnant ring modulator PGL and driving circuit DR；
Voltage detecting circuit VS, the pulse generator PGC is connected respectively with the first pulse selector PS1；Current detecting electricity
Road IS is connected respectively with the first stagnant stagnant ring modulator PGL of ring modulator PGH and second；First stagnant ring modulator PGH, the second stagnant ring
Modulator PGL, the first pulse selector PS1 are connected respectively with the second pulse selector PS2；Second pulse selector PS2 also with
Driving circuit DR is connected, and controls the turn-on and turn-off of converter switches pipe.
2. continuous conduction mode double hysteresis pulse-sequence control device according to claim 1, it is characterised in that：Described
First pulse selector PS1 includes first comparator CMP1 and the first trigger DFF1；Voltage detecting circuit VS is detected defeated
Go out voltage signal VoIt is connected with first comparator CMP1 negative polarity end, output voltage a reference value VrefWith first comparator CMP1 just
Polar end is connected；First comparator CMP1 is connected with the D ends of the first trigger DFF1, the signal CC that pulse generator PGC is generated
It is connected with the C-terminal of the first trigger DFF1.
3. continuous conduction mode double hysteresis pulse-sequence control device according to claim 1, it is characterised in that：Described
Second pulse selector PS2 includes first and door AND1, second and door AND2 and/or door OR；The arteries and veins that pulse generator PGH is generated
Rush signal VPH, the first pulse selector generate pulse signal HH be connected with first with the input terminal of door AND1；First stagnant ring tune
The pulse signal V that device PGL processed is generatedPL, the first pulse selector generate pulse signal LL and second and door AND2 input terminal
It is connected；First with the output terminal of door AND1, second and door AND2 with or the input terminal of door OR be connected.
4. continuous conduction mode double hysteresis pulse-sequence control device according to claim 1, it is characterised in that：Described
First stagnant ring modulator PGH includes the second comparator CMP2, third comparator CMP3 and the second trigger RSFF2；It detects
Capacitance current signal iCIt is connected with the second comparator CMP2 positive ends, the first peak capacitor current reference value Iref-PHWith second
Comparator CMP2 negative polarity end is connected；The capacitance current signal i detectedCIt is connected with third comparator CMP3 negative polarity end, the
One terminal valley point capacitance current reference value Iref-VHIt is connected with third comparator CMP3 positive ends；The output terminal of second comparator CMP2
It is connected with the R ends of the second trigger RSFF2, the output terminal of third comparator CMP3 is connected with the S ends of the second trigger RSFF2.
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| CN201721667748.2U CN207475398U (en) | 2017-12-05 | 2017-12-05 | Continuous conduction mode double hysteresis pulse-sequence control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107742972A (en) * | 2017-12-05 | 2018-02-27 | 西南交通大学 | Continuous conduction mode double hysteresis pulse sequence control method and its device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742972A (en) * | 2017-12-05 | 2018-02-27 | 西南交通大学 | Continuous conduction mode double hysteresis pulse sequence control method and its device |
| CN107742972B (en) * | 2017-12-05 | 2023-10-27 | 西南交通大学 | Continuous conduction mode double hysteresis pulse sequence control method and device thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |