CN104638913B - Single-inductance double-output switch converters bicyclic voltage-type PFM control and its device - Google Patents
Single-inductance double-output switch converters bicyclic voltage-type PFM control and its device Download PDFInfo
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- CN104638913B CN104638913B CN201510089074.1A CN201510089074A CN104638913B CN 104638913 B CN104638913 B CN 104638913B CN 201510089074 A CN201510089074 A CN 201510089074A CN 104638913 B CN104638913 B CN 104638913B
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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
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Abstract
The invention discloses a kind of bicyclic voltage-type PFM control of single-inductance double-output switch converters and its device, outer shroud adopts voltage-type frequency conversion control technique, realizes the control to main switch；Internal ring, using fixing on or off time voltage type frequency conversion control technique, controls output branch switch pipe, thus realizing the independent regulation of each output branch road.The present invention can be used for controlling multiple changers of single-inductance double-output topological structure, such as：Buck changer, Boost, Buck boost changer, Bipolar changer etc., control single-inductor dual-output converter with respect to conventional voltage type PWM, and its advantage is：There is output voltage ripple little, steady-state behaviour is good, input transient response and load transient response speed are fast, the cross influence between changer output branch road is little etc..
Description
Technical field
The present invention relates to power electronic equipment, especially a kind of control method of single-inductance double-output switch converters and its
Device.
Background technology
Widely available with electronic products such as smart mobile phone, panel computers, user is to for electronic product power supply
The requirement more and more higher of volume, loading range and efficiency.Research shows, single-inductance double-output switch converters can be intelligent handss
The electronic products such as machine, panel computer provide the power supply of two-way independence, reduce the quantity of inductance and control chip, effectively subtract
Small power supply volume, reduces power supply cost, improves conversion efficiency, thus being subject to academia and industrial quarters more and more to pay close attention to.Right
In same single-inductance double-output switch converters, different control methods makes changer have different transient states and stability
Energy.
Control technology based on pulse width modulation (pulse width modulation, PWM) is most commonly seen list
Inductance dual output switch converters control method, as traditional voltage mode control single-inductance double-output switch converters, differential mode-common
Mode voltage type PWM controls single-inductance double-output switch converters and Average Current Control single-inductor dual-output converter etc..Above-mentioned
Based on the control technology thought of PWM it is：Changer output voltage or electric current are compared with reference voltage, the error letter obtaining
Number after error amplifier compensates, generate control voltage, and the sawtooth waveforms of control voltage and fixed frequency is compared, obtains
Obtain the pulse control signal of high and low level, then by the turn-on and turn-off of drive circuit controlling switch pipe, realize switch converters
The regulation of output voltage.Based on the control method of pulse width modulation, realize simple, but because the sawtooth waveforms using fixed frequency is made
For modulating wave, have the shortcomings that input transient response is slow, load transient response is slow, cross influence that is exporting between branch road is serious.
Compared with the PWM control technology containing fixed frequency sawtooth waveforms, using pulse frequency modulated (pulse
Frequency modulation, PFM) technology switch converters, switching frequency scalable, it is fast to have an input transient response,
The features such as load transient response is fast.Voltage-type constant on-time control and voltage-type constant off-time control be two kinds more
Common voltage-type PFM control technology, the basic thought of wherein voltage-type constant on-time control technology is：Switch periods are opened
During the beginning, switching tube turns on, and changer output voltage rises；After constant on-time, switching tube turns off, under output voltage
Fall, when it drops to reference voltage, switching tube turns on again, starts new switch periods.Traditional PFM technology is directly used
During to single-inductance double-output switch converters, due to there is two output branch roads and multiple switch pipe in changer so that converting
The cross influence that device exports between branch road is serious, during load jump changer volatile steady it is impossible to normal work.
Content of the invention
It is an object of the invention to provide a kind of control method of single-inductance double-output switch converters, it is allowed to have very simultaneously
Good transient response and relatively low cross influence are it is adaptable to the single-inductance double-output switch converters of various topological structures.
The present invention realizes its goal of the invention and be employed technical scheme comprise that：A kind of single-inductance double-output switch converters are bicyclic
Voltage-type PFM control, in single-inductance double-output switch converters, in the start time in each cycle, detects two outputs
The output voltage of branch road, obtains voltage sense signal Voa、Vob；Voltage sense signal VoaWith voltage control signal Vc1
Generate pulse signal V through first comparator CMP1p1, in order to control the conducting of single-inductance double-output switch converters main switch
With shutoff；By voltage sense signal Voa、VobGenerate output voltage difference mode signal V through subtractor SUBdif, VdifWith voltage
Control signal Vc2Generate narrow pulse signal V through the second comparator CMP2S, in conjunction with default Fixed Time Interval t, produce pulse
Signal Vp2, in order to control conducting and the shutoff of single-inductance double-output switch converters branch switch pipe.
Single-inductance double-output switch converters bicyclic voltage-type PFM control of the present invention, voltage control signal
Vc1、Vc2Producing method be：Voltage control signal Vc1Produced by first voltage controller VCM1, equal to reference voltage Vref1Or
By reference voltage Vref1With voltage sense signal VoaProduce through error amplifier EA1；Voltage control signal Vc2By second
Voltage controller VCM2 produces, equal to reference voltage Vref2Or by reference voltage Vref2With output voltage difference mode signal VdifThrough by mistake
Difference amplifier EA2 produces.
The device of single-inductance double-output switch converters bicyclic voltage-type PFM control it is characterised in that：By the first electricity
Pressure testing circuit VS1, second voltage testing circuit VS2, first voltage controller VCM1, second voltage controller VCM2, first
Comparator CMP1, the second comparator CMP2, subtractor SUB, trigger RS, intervalometer CT, phase inverter NOR, the first drive circuit
DR1, the second drive circuit DR2 and the 3rd drive circuit DR3 composition；The described outfan of first voltage testing circuit VS1 with
The input of first voltage controller VCM1 connects, and the outfan of VS1 is connected to first with the outfan of VCM1 and compares
Two inputs of device CMP1, the outfan of first comparator CMP1 is connected with the input of the first drive circuit DR1, controls and becomes
The turn-on and turn-off of parallel operation main switch；The described outfan of second voltage testing circuit VS2 is defeated with one of subtractor SUB
Enter end to be connected, another input of subtractor SUB is connected with the outfan of first voltage testing circuit VS1, subtractor SUB's
Outfan is connected with an input of the second comparator CMP2, the second comparator CMP2 outfan and trigger RS S
End is connected, and the Q end of trigger RS is connected with the input of the second drive circuit DR2；The outfan of intervalometer CT and trigger RS
R end be connected, to determine Fixed Time Interval t；The input also with second voltage controller VCM2 for the outfan of subtractor SUB
It is connected, the outfan of second voltage controller VCM2 is connected to another input of the second comparator CMP2；Trigger RS's
Q1 end is connected with the input of intervalometer CT；The Q end of trigger RS is connected to the 3rd drive circuit DR3 also by phase inverter NOR
Input, control changer branch switch pipe turn-on and turn-off.
Compared with prior art, the invention has the beneficial effects as follows：
First, with existing based on the single-inductance double-output switch converters control technology of pulse width modulation compared with, this
, in stable state, output voltage ripple is little for bright single-inductance double-output switch converters.
2nd, with existing based on the single-inductance double-output switch converters control technology of pulse width modulation compared with, this
Bright single-inductance double-output switch converters, being capable of quick regulation main switch and branch switch when input voltage changes
The turn-on and turn-off of pipe, output voltage overshoot is little, and regulating time is short, and the transient response performance of changer is high.
3rd, with existing based on the single-inductance double-output switch converters control technology of pulse width modulation compared with, this
Bright single-inductance double-output switch converters, when load changes, are capable of quick regulation main switch and branch switch pipe
Turn-on and turn-off, output voltage and inductive current overshoot are little, and regulating time is short, and the transient response performance of changer is high, and two is defeated
Cross influence between out branch is little, and system stability is good.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Brief description
Fig. 1 is the circuit structure block diagram of the embodiment of the present invention one control method.
Fig. 2 is the circuit structure block diagram of the voltage controller of the embodiment of the present invention one.
Fig. 3 is the circuit structure block diagram of the embodiment of the present invention one.
Fig. 4 is the key operation waveforms schematic diagram of the embodiment of the present invention one.
Fig. 5 exists for the single-inductance double-output switch converters of the embodiment of the present invention one and differential mode-common-mode voltage type PWM control
A exports transient state time-domain-simulation waveform during branch circuit load mutation.
Fig. 6 exists for the single-inductance double-output switch converters of the embodiment of the present invention one and differential mode-common-mode voltage type PWM control
B exports transient state time-domain-simulation waveform during branch circuit load mutation.
Fig. 7 exists for the single-inductance double-output switch converters of the embodiment of the present invention one and differential mode-common-mode voltage type PWM control
Transient state time-domain-simulation waveform during input voltage mutation.
Fig. 8 is the circuit structure block diagram of the voltage controller of the embodiment of the present invention two.
Fig. 9 is the circuit structure block diagram of the embodiment of the present invention three.
In Fig. 2：A () is the circuit structure block diagram of the first voltage controller VCM1 of the embodiment of the present invention one；B () is this
The circuit structure block diagram of the second voltage controller VCM2 of bright embodiment one.
In Fig. 5：A () is the transient response waveform when a exports branch circuit load mutation for the embodiment of the present invention one；B () is poor
Mould-common-mode voltage type PWM controls the transient response ripple when a exports branch circuit load mutation for the single-inductance double-output switch converters
Shape.
In Fig. 6：A () is the transient response waveform when b exports branch circuit load mutation for the embodiment of the present invention one；B () is poor
Mould-common-mode voltage type PWM controls the transient response ripple when b exports branch circuit load mutation for the single-inductance double-output switch converters
Shape.
In Fig. 7：A () is the transient response waveform in input voltage mutation for the embodiment of the present invention one；B () is differential mode-altogether
Mode voltage type PWM controls the transient response waveform in input voltage mutation for the single-inductance double-output switch converters.
In Fig. 8：A () is the circuit structure block diagram of the first voltage controller VCM1 of the embodiment of the present invention two；B () is this
The circuit structure block diagram of the second voltage controller VCM2 of bright embodiment two.
Specific embodiment
Below by specific example with reference, further detailed description is done to the present invention.
Embodiment one：
Fig. 1 illustrates, a kind of specific embodiment of the present invention is：The bicyclic voltage-type of single-inductance double-output switch converters
PFM control and its device, its device mainly by first voltage testing circuit VS1, second voltage testing circuit VS2, first
Voltage controller VCM1, second voltage controller VCM2, first comparator CMP1, the second comparator CMP2, subtractor SUB, touch
Send out device RS, conducting intervalometer CT, phase inverter NOR and the first drive circuit DR1, the second drive circuit DR2, the 3rd drive circuit
DR3 forms.First voltage testing circuit VS1 is used for detecting output voltage VoaValue, second voltage testing circuit VS2 is used for detecting
Output voltage VobValue；First voltage controller VCM1 is used for obtaining voltage control signal Vc1, second voltage controller VCM2 use
In acquisition voltage control signal Vc2；Subtractor SUB is used for obtaining the difference mode signal of two output voltages；First comparator CMP1 is used for
Obtain controlling the pulse signal V of main switch turn-on and turn-offp1, pulse signal Vp1Master is controlled to open via the first drive circuit DR1
Close the turn-on and turn-off of pipe, the second comparator CMP2 is used for obtaining the narrow pulse signal V of controlling brancher switching tube conductings；Regularly
The output end signal of device CT and VsProduce the control wave V of Fixed Time Interval through trigger RSp2, via the second driving
The conducting of circuit DR2 controlling brancher switching tube and shutoff, the control sequential of wherein two output branch switch pipes is complementary.
Fig. 2 illustrates, the first voltage controller VCM1 of this example is：There is error amplifier EA1, reference voltage Vref1With letter
Number VoaRespectively as the input of error amplifier EA1, the output of error amplifier EA1 is voltage control signal Vc1；This example
Second voltage controller VCM2 is：There is error amplifier EA2, reference voltage Vref2With signal VdifAmplify respectively as error
The input of device EA2, the output of error amplifier EA2 is voltage control signal Vc2.
This example adopts the device of Fig. 3, can easily and quickly realize above-mentioned control method.Fig. 3 illustrates, single inductance of this example
The device of dual output switch converters bicyclic voltage-type PFM control, by changer TD and switching tube S1、Sa、SbControl dress
Put composition.Fig. 4 is output voltage Voa, output voltage Vob, signal Vdif, control signal Vc1, control signal Vc2, time t, inductance electricity
Stream signal iLAnd the relation schematic diagram between drive signal.
Its work process of the device of this example and principle are：
Using bicyclic voltage-type PFM, the work process controlling and principle are control device：Fig. 3, Fig. 4 illustrate, any one
Individual start time in cycle detects output voltage signal VoaWith output voltage signal Vob, first voltage controller VCM1 generation simultaneously
Voltage control signal Vc1, second voltage controller VCM2 generation voltage control signal Vc2；Detect the output voltage signal V obtainingoa
Connect to an input of first comparator CMP1, with voltage control signal Vc1Control main switch S through comparing to produce1Lead
Pulse signal V that is logical and turning offp1.Detect the output voltage signal V obtainingoaAnd VobIt is connected to subtractor SUB, generate two-way defeated
Go out the difference mode signal V of voltagedif, difference mode signal VdifIt is connected simultaneously to an input of the second comparator CMP2, with voltage control
Signal V processedc2Comparative result as trigger RS S end input signal；The output signal of intervalometer CT is as the R of trigger RS
End input signal, the outfan Q of trigger RS connects to the input of described second drive circuit DR2, the second drive circuit DR2
Outfan connect to switching tube SaGate pole control end, and the outfan Q of trigger RS connects to the input of phase inverter NOR
End, the outfan of phase inverter connects to the input of the 3rd drive circuit DR3, the outfan company of the 3rd drive circuit DR3 simultaneously
It is connected to switching tube SbGate pole control end.Trigger RS passes through set, homing action controlling switch pipe SaAnd SbConducting and pass
Disconnected.
The changer TD of this example is single-inductance double-output Buck changer.
With PSIM simulation software, time-domain-simulation analysis is carried out to the method for this example, result is as follows.
Fig. 5 is the single-inductance double-output switch converters being controlled using the present invention and differential mode-common-mode voltage type in output
(output current I of output branch road a during a load changing of roadoaFrom 1A → 2A → 1A change), the time domain of two output branch road output voltages
Simulation waveform, component (a), (b) correspond to the present invention respectively and differential mode-common-mode voltage type controls.In 13ms, a branch circuit load adds
Weight, load current is by 1A Spline smoothing to 2A；In 15ms, a branch circuit load mitigates, and load current is by 2A Spline smoothing to 1A.From
Can be seen that in Fig. 5：Using the output voltage V exporting branch road a, b during the present inventionoa、Vob, the maximal regulated time is only 0.06ms；
The output voltage V of output branch road aoaThe peak to peak amount being in course of adjustment is 0.12V, the output voltage of output branch road b
VobThe peak to peak amount being in course of adjustment is 0.06V, and during steady operation, output voltage ripple maximum is 0.14V.And
(switching frequency is 100kHz), the output voltage V of output branch road a, b during the changer that differential mode-common-mode voltage type controlsoa、VobPoint
Not through the adjustment time of about 1.74ms and 1.87ms, reenter stable state；The output voltage V of output branch road aoaIn adjustment process
In peak to peak amount be 0.47V, output branch road b output voltage VobThe peak to peak amount being in course of adjustment is
0.44V, during steady operation, output voltage ripple maximum is 0.41V.Its regulating time and peak to peak amount are significantly greater than
The switch converters of the present invention are it is seen that when a branch circuit load changes, the single-inductance double-output switch converters of the present invention have more preferably
Load transient response performance.Simulated conditions：Input voltage Vin=20V, voltage reference value Vref1=12V, Vref2=5V, inductance
L=100 μ H, electric capacity C1=C2=220 μ F (its equivalent series resistance is 50m Ω), load resistance Roa=12 Ω, Rob=5 Ω, solid
Fix time interval t=5 μ s.
Fig. 6 is the switch converters being controlled using the present invention and differential mode-common-mode voltage type when exporting branch road b load changing
(output current I of output branch road bobFrom 1A → 2A → 1A change), the time-domain-simulation oscillogram of two output branch road output voltages, point
Figure (a), (b) correspond to the present invention respectively and differential mode-common-mode voltage type controls.Contrast understands：Single inductance lose-lose that the present invention controls
Go out the output voltage V that switch converters export branch road a, boa、Vob, the maximal regulated time is only 0.06ms；Output branch road a's is defeated
Go out voltage VoaThe peak to peak amount being in course of adjustment is only 0.1V, the output voltage V of output branch road bobIn adjustment process
In peak to peak amount be only 0.11V, during steady operation output voltage ripple maximum be 0.18V.And differential mode-common mode electricity
Die mould controls single-inductance double-output switch converters to export the output voltage V of branch road a, boa、VobRespectively through about 1ms and
The adjustment time of 1.12ms, reenters stable state；The output voltage V of output branch road aoaThe peak to peak being in course of adjustment
Amount is about 0.47V, the output voltage V of output branch road bobThe peak to peak amount being in course of adjustment is about 0.44V, stable state work
When making, output voltage ripple maximum is 0.41V.The single-inductance double-output switch converters of the present invention are born in b branch road as can be seen here
When carrying mutation, the regulating time of output voltage and peak to peak amount are substantially better than differential mode-common-mode voltage type PWM and control, and bear
Carry transient response performance more preferable.Simulated conditions are consistent with Fig. 5.
From Fig. 5 and Fig. 6, the single-inductance double-output switch converters of the present invention output voltage ripple in stable state
Little, and in load changing, output voltage transient changing amount is little, regulating time is short, and load transient performance is good, and the present invention
Single-inductance double-output switch converters are little to the cross influence of another output branch road in an output branch circuit load mutation.
Fig. 7 is the single-inductance double-output switch converters being controlled using the present invention and differential mode-common-mode voltage type PWM in input
(input voltage V during voltage jumpinFrom 20V → 40V → 20V change), the transient state time-domain-simulation ripple of two output branch road output voltages
Shape, component (a), (b) correspond to the present invention respectively and differential mode-common-mode voltage type controls.In 13ms, input voltage is become by 20V step
Change to 40V；In 15ms, input voltage is again by 40V Spline smoothing to 20V.As can be seen from the figure：Switch using the present invention
Changer exports the output voltage V of branch road a, boa、Vob, the process that almost do not adjust just reenters stable state, and only ripple quantity occurs
Minor variations；The output voltage V of output branch road aoaThe peak to peak amount being in course of adjustment is only 0.05V, output
The output voltage V of road bobHave almost no change.And differential mode-common-mode voltage type controls the output of single-inductance double-output switch converters
The output voltage V of road a, boa、VobThrough the adjustment time of about 1ms, reenter stable state；The output voltage V of output branch road aoa?
Peak to peak amount during adjustment is about 3.6V, the output voltage V of output branch road bobThe maximum electricity being in course of adjustment
Pressure undulate quantity is about 3.45V, and after input voltage mutation, output voltage is unable to reach preset value, whole changer
Unstability.As can be seen here, the single-inductance double-output switch converters input mapping of the present invention is good, and regulating time is short, output electricity
Pressure transient changing amount is little, and anti-incoming wave kinetic force is strong.Simulated conditions are consistent with Fig. 5.
Embodiment two
The present invention adopts the signal flow graph of embodiment two method as also shown in Figure 1, and embodiment is basic with embodiment one
Unanimously, it is a difference in that：In the present embodiment, voltage controller VCM does not have error amplifier EA, and voltage controller VCM is only and produces
Reference voltage signal VrefDevice, reference voltage signal VrefIt is voltage control signal Vc.
Fig. 8 illustrates：The first voltage controller VCM1 of this example is：Reference voltage Vref1It is voltage control signal Vc1；This
Example second voltage controller VCM2 be：Reference voltage Vref2It is voltage control signal Vc2.
Embodiment three
As shown in figure 9, the embodiment of the present invention three is essentially identical with embodiment one, it is a difference in that：The conversion that this example controls
Device TD is single-inductance double-output Boost.
The inventive method is in addition to can be used for the switch converters in above example it can also be used to single-inductance double-output
In multiple multiple output circuit such as One Buck-Boost converter body, single-inductance double-output Bioplor changer topology.
Claims (2)
1. the bicyclic voltage-type PFM control of a kind of single-inductance double-output switch converters, in single-inductance double-output switch change-over
In device, in the start time of each switch periods, detect the output voltage of two output branch roads, obtain signal Voa、Vob；Outer shroud
Control circuit is by VoaWith voltage control signal Vc1Generate pulse signal V through first comparator CMP1p1, in order to control changer
The conducting of main switch and shutoff；Interior loop control circuit is by Voa、VobGenerate signal V through subtractor SUBdif, VdifWith voltage control
Signal V processedc2Generate narrow pulse signal V through the second comparator CMP2S, in conjunction with default Fixed Time Interval t, produce pulse letter
Number Vp2, in order to control conducting and the shutoff of changer branch switch pipe.
2. a kind of dress of the single-inductance double-output switch converters bicyclic voltage-type PFM control realized described in claim 1
Put it is characterised in that：By first voltage testing circuit VS1, second voltage testing circuit VS2, first voltage controller VCM1,
Two voltage controller VCM2, first comparator CMP1, the second comparator CMP2, subtractor SUB, trigger RS, intervalometer CT, anti-
Phase device NOR, the first drive circuit DR1, the second drive circuit DR2 and the 3rd drive circuit DR3 composition；Described first voltage inspection
The outfan of slowdown monitoring circuit VS1 is connected with the input of first voltage controller VCM1, and the outfan of the outfan of VS1 and VCM1
It is connected to two inputs of first comparator CMP1, the outfan of first comparator CMP1 and the first drive circuit DR1
Input be connected, control changer main switch turn-on and turn-off；The outfan of described second voltage testing circuit VS2
It is connected with an input of subtractor SUB, another input of subtractor SUB is defeated with first voltage testing circuit VS1's
Go out end be connected, the outfan of subtractor SUB is connected with an input of the second comparator CMP2, the second comparator CMP2
Outfan is connected with the S end of trigger RS, and the Q end of trigger RS is connected with the input of the second drive circuit DR2；Intervalometer CT
Outfan be connected with the R end of trigger RS, to determine Fixed Time Interval t；The outfan of subtractor SUB also with second voltage
The input of controller VCM2 is connected, and the outfan of second voltage controller VCM2 is connected to another of the second comparator CMP2
Input；The Q1 end of trigger RS is connected with the input of intervalometer CT；The Q end of trigger RS connects also by phase inverter NOR
To the input of the 3rd drive circuit DR3, control the turn-on and turn-off of changer branch switch pipe.
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| CN201510089074.1A CN104638913B (en) | 2015-02-27 | 2015-02-27 | Single-inductance double-output switch converters bicyclic voltage-type PFM control and its device |
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| CN106300964B (en) * | 2016-08-24 | 2018-08-17 | 西南交通大学 | Independent charge and discharge sequential single-inductance double-output switch converters method for controlling frequency conversion and its device |
| CN107769532B (en) * | 2017-11-28 | 2019-11-29 | 西南民族大学 | Single-inductance double-output switch converters capacitance current ripple control method and device |
| CN109149937A (en) * | 2018-07-11 | 2019-01-04 | 南京理工大学 | A kind of SIDO buck switch converters and its digital control method |
| CN109818497B (en) * | 2019-01-14 | 2020-09-15 | 华南理工大学 | Single-inductor multi-output DC-DC buck converter |
| CN112398342B (en) * | 2021-01-21 | 2021-04-06 | 四川大学 | Frequency conversion control device and method for combined single-inductor dual-output switch converter |
| CN116470764B (en) * | 2023-05-15 | 2024-02-23 | 湖南农业大学 | Quasi-fixed frequency control device and control method for switching converter |
| CN116581962B (en) * | 2023-07-13 | 2023-09-15 | 四川大学 | Chaotic stabilization control method and device for single-inductor double-output switch converter |
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| US8975879B2 (en) * | 2009-09-14 | 2015-03-10 | Dialog Semiconductor Gmbh | Switching converter having a plurality N of outputs providing N output signals and at least one inductor and method for controlling such a switching converter |
| CN103560668B (en) * | 2013-11-12 | 2015-11-18 | 东南大学 | The method that secondary switch 100% duty ratio exports is realized in single inductance dual-output converter |
| CN204465341U (en) * | 2015-02-27 | 2015-07-08 | 西南交通大学 | A kind of single inductance dual output switch converters dicyclo voltage-type PFM control device |
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