CN102857096A - Control method for buck-boost direct-current converter - Google Patents
Control method for buck-boost direct-current converter Download PDFInfo
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- CN102857096A CN102857096A CN2011101845637A CN201110184563A CN102857096A CN 102857096 A CN102857096 A CN 102857096A CN 2011101845637 A CN2011101845637 A CN 2011101845637A CN 201110184563 A CN201110184563 A CN 201110184563A CN 102857096 A CN102857096 A CN 102857096A
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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
- H02M3/1582—Buck-boost converters
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Abstract
The invention discloses a control method for a buck-boost direct-current converter, and belongs to the technical field of power electronic converters. The control method is implemented on the basis of the buck-boost direct current converter and includes steps of (1), regulating switch frequency or switch on(switch off) time of an S1 so as to regulate output voltage when input voltage is higher (smaller) than output voltage; (2), enabling the S1 and an S2 to be switched on complementarily, and enabling an S3 and an S4 to be switched on complementarily; (3), when the switch frequency of the S1 is maximum, fixing the switch frequency of the S1, and regulating the switch on time to regulate output voltage; (4), when the switch off time of the S1 is minimum, fixing the switch off time of the S1, regulating the switch frequency of the S1 to regulate output voltage; (5), when the switch on time of the S3 is minimum, fixing the switch on time of the S3, and regulating the switch frequency of the S3 to regulate output voltage; and (6), when the switch frequency of the S3 is maximum, fixing the switch frequency of the S3 and regulating the switch on time of the S3 to regulate output voltage. By the control method for the buck-boost direct-current converter, different working modes can be switched smoothly and conversion efficiency of the converter can be improved.
Description
Technical field
The invention belongs to the converters technical field, be specifically related to a kind of buck DC converter control method.
Background technology
The input voltage of buck-boost converter can greater than, be equal to or less than output voltage, therefore namely the input voltage of converter can in very large range change, and is widely used in fields such as generation of electricity by new energy, industrial production, Aero-Space.Traditional single switching tube buck-boost converter comprises the various ways such as Buck/Boost, Cuk, Zeta, Sepic, but all exists, input and output reversed polarity large such as switch tube voltage/current stress, uses the shortcomings such as passive device is more, conversion efficiency is low.Buck-boost converter shown in the accompanying drawing 1 owing to have input and output voltage altogether, topological structure is succinct, switching voltage stress is low, the conversion efficiency advantages of higher obtains to pay close attention to widely.
Buck-boost converter shown in the accompanying drawing 1 adopts four switching tubes (S1～S4) altogether, can work in boost mode or decompression mode by the conducting of controlling four switching tubes with the shutoff converter, ideally, the duty ratio of four switching tubes can change between 0～1 continuously, therefore output voltage is adjustable continuously, yet, turning on and off all of actual switch pipe needs the regular hour, the duty ratio of switching tube can't change between 0～1 continuously, and this causes buck-boost converter to take over seamlessly between boost mode and decompression mode.Document " Lee Y.J.; Alireza K.; Arindam C.; et al.Digital combination of Buck and Boost converters to control a positive Buck-Boost converter and improve the output transients[J] .IEEE Transactions on power electronics; 2009; 24 (5): 1267-1279. " and document " Lee Y. J., Alireza K., Ali E..A compensation technique for smooth transitions in a noninverting Buck-Boost converter[J] .IEEE Transactions on power electronics, 2009,24 (4): 1002-1016. " studied the implementation of buck-boost converter transient process and the indemnifying measure that raising seamlessly transits characteristic; but control algolithm is very complicated; document " Ren Xiaoyong, Tang Zhao, Ruan Xinbo, Deng. a kind of four switch Buck-Boost converters [J] of novelty. Proceedings of the CSEE, 2008,28 (21): 15-19 " in the transient process of two kinds of patterns, introduce " filter patterns " do not regulated; output voltage is unadjustable under this pattern, is not suitable for requiring the always application scenario of stable regulation of output voltage.Document " Xiao Huafeng; Xie Shaojun. be used for grid-connected staggered two-tube Buck-Boost converter [J]. Proceedings of the CSEE; 2010; 30 (21): 7-12. " a kind of staggered control method proposed, although can realize taking over seamlessly of different operating mode, but the inductive current ripple is larger, causes that the inductance volume is large, loss is larger.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing buck-boost converter control method, provide a kind of realize simple, can realize that different operating mode takes over seamlessly and can improve the buck DC converter control method of converter conversion efficiency.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of buck DC converter control method, this control method based on the buck DC converting of implementing by input source (Vin), first to fourth switching tube (S1, S2, S3, S4), inductance (L), filter capacitor (Co) and load (Ro) consist of, wherein: the positive pole of input source (Vin) is connected in the drain electrode of the first switching tube (S1), the negative pole of input source (Vin) is connected in respectively the source electrode of second switch pipe (S2), the source electrode of the 3rd switching tube (S3), one end of one end of filter capacitor (Co) and load (Ro), the source electrode of the first switching tube (S1) is connected in respectively the drain electrode of second switch pipe (S2) and an end of inductance (L), the other end of inductance (L) is connected in respectively the drain electrode of the 3rd switching tube (S3) and the source electrode of the 4th switching tube (S4), and the drain electrode of the 4th switching tube (S4) is connected in respectively the other end of filter capacitor (Co) and the other end of load (Ro);
Described buck DC converter control method is as follows: the first switching tube (S1) and the complementary conducting of second switch pipe (S2), the 3rd switching tube (S3) and the complementary conducting of the 4th switching tube (S4), when input voltage during greater than output voltage, buck-boost converter works in decompression mode, this moment by regulating the first switching tube (S1) switching frequency or service time regulation output voltage, and the 3rd switching tube (S3) is with fixing minimal switching frequency and fixing minimum ON time switch, when input voltage during less than output voltage, buck-boost converter works in boost mode, this moment by regulating the 3rd switching tube (S3) switching frequency or service time regulation output voltage, and the first switching tube (S1) is with fixing minimal switching frequency and fixing minimum turn-off clock switch work.
Further, when buck-boost converter works in decompression mode, if the turn-off time of the first switching tube (S1) does not reach the minimum value of setting, then the switching frequency of the first switching tube (S1) is fixed and is maximum, this moment is by regulating the service time regulation output voltage of the first switching tube (S1), when input voltage reduces, increase the service time of the first switching tube (S1), when input voltage increases, reduce the service time of the first switching tube (S1), if the turn-off time of the first switching tube (S1) reaches the minimum value of setting, then the turn-off time of the first switching tube (S1) is fixed and the minimum value for setting, come regulation output voltage by the switching frequency of regulating the first switching tube (S1) this moment, when input voltage reduces, reduce the switching frequency of the first switching tube (S1), when input voltage increases, increase the switching frequency of the first switching tube (S1).
Further, when buck-boost converter works in boost mode, if the service time of the 3rd switching tube (S3) does not reach the minimum value of setting, then the switching frequency of the 3rd switching tube (S3) is fixed and is maximum, this moment is by regulating the service time regulation output voltage of the 3rd switching tube (S3), when input voltage reduces, increase the service time of the 3rd switching tube (S3), when input voltage increases, reduce the service time of the 3rd switching tube (S3), if the service time of the 3rd switching tube (S3) reaches the minimum value of setting, then the service time of the 3rd switching tube (S3) is fixed and the minimum value for setting, this moment is by regulating the switching frequency regulation output voltage of the 3rd switching tube (S3), when input voltage reduces, increase the switching frequency of the 3rd switching tube (S3), when input voltage increases, reduce the switching frequency of the 3rd switching tube (S3).
Further, the switching frequency of described the first switching tube (S1) and the 3rd switching tube (S3) all is not more than the maximum of setting and is not less than the minimum value of setting.
The present invention who forms according to technique scheme has the following advantages:
(1) can be good at finishing the control of converter, make the converter steady operation in boosting or decompression mode;
(2) can be so that converter level and smooth, seamless switching between boost mode and decompression mode;
(3) by reducing the mode of switching frequency, can obviously improve the conversion efficiency of converter;
(4) control simply, be easy to realize.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the buck-boost converter schematic diagram;
Fig. 2 is embodiment of the invention buck-boost converter control method schematic diagram;
Wherein, V
InBe input voltage; V
oBe output voltage; S
1, S
2, S
3, S
4Be respectively first, second, third, fourth switching tube; L is inductance; C
oBe filter capacitor; R
oBe load; f
1It is the switching frequency of the first switching tube; F
1max, F
1minBe respectively the highest switching frequency and the lowermost switch frequency of the first switching tube; t
1offBe the turn-off time of the first switching tube, T
1off_minIt is the minimum turn-off time of the first switching tube; f
3It is the switching frequency of the 3rd switching tube; F
3maxAnd F
3minBe respectively the highest switching frequency and the lowermost switch frequency of the 3rd switching tube; t
3onIt is the service time of the 3rd switching tube; T
3on_minIt is the minimum service time of the 3rd switching tube.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, buck DC converter control method of the present invention for buck-boost converter by input source (V
In), first to fourth switching tube (S
1, S
2, S
3, S
4), inductance (L), filter capacitor (C
o) and load (R
o) consist of.
Wherein: input source (V
In) positive pole be connected in the first switching tube (S
1) drain electrode, input source (V
In) negative pole be connected in respectively second switch pipe (S
2) source electrode, the 3rd switching tube (S
3) source electrode, filter capacitor (C
o) an end and load (R
o) an end, the first switching tube (S
1) source electrode be connected in respectively second switch pipe (S
2) drain electrode and an end of inductance (L), the other end of inductance (L) is connected in respectively the 3rd switching tube (S
3) drain electrode and the 4th switching tube (S
4) source electrode, the 4th switching tube (S
4) drain electrode be connected in respectively filter capacitor (C
o) the other end and load (R
o) the other end.
Based on above-mentioned buck DC converter, the control procedure of control method provided by the invention is as follows:
(1) first switching tube (S
1) and second switch pipe (S
2) complementary conducting, the 3rd switching tube (S
3) and the 4th switching tube (S
4) complementary conducting; When input voltage during greater than output voltage, buck-boost converter works in decompression mode, and this moment is by regulating the first switching tube (S
1) switching frequency or service time regulation output voltage, and the 3rd switching tube (S
3) with fixing minimal switching frequency and fixing minimum ON time switch; When input voltage during less than output voltage, buck-boost converter works in boost mode, and this moment is by regulating the 3rd switching tube (S
3) switching frequency or service time regulation output voltage, and the first switching tube (S
1) with fixing minimal switching frequency and fixing minimum turn-off clock switch work.
When (2) buck-boost converter works in decompression mode, if the first switching tube (S
1) turn-off time do not reach the minimum value of setting, then the first switching tube (S
1) switching frequency fix and for maximum, this moment is by regulating the first switching tube (S
1) service time regulation output voltage, when input voltage reduces, increase by the first switching tube (S
1) service time, when input voltage increases, reduce the first switching tube (S
1) service time; If the first switching tube (S
1) turn-off time reach the minimum value of setting, then the first switching tube (S
1) turn-off time fix and the minimum value for setting, this moment is by regulating the first switching tube (S
1) switching frequency come regulation output voltage, when input voltage reduces, reduce the first switching tube (S
1) switching frequency, when input voltage increases, increase by the first switching tube (S
1) switching frequency.
When (3) buck-boost converter works in boost mode, if the 3rd switching tube (S
3) service time do not reach the minimum value of setting, then the 3rd switching tube (S
3) switching frequency fix and for maximum, this moment is by regulating the 3rd switching tube (S
3) service time regulation output voltage, when input voltage reduces, increase by the 3rd switching tube (S
3) service time, when input voltage increases, reduce the 3rd switching tube (S
3) service time, if the 3rd switching tube (S
3) service time reach the minimum value of setting, then the 3rd switching tube (S
3) service time fix and the minimum value for setting, this moment is by regulating the 3rd switching tube (S
3) switching frequency regulation output voltage, when input voltage reduces, increase by the 3rd switching tube (S
3) switching frequency, when input voltage increases, reduce the 3rd switching tube (S
3) switching frequency.
In control method of the present invention, the first switching tube (S
1) and the 3rd switching tube (S
3) switching frequency all be not more than the maximum of setting and be not less than the minimum value of setting.
In a specific embodiment of the present invention, the input voltage range of buck-boost converter is 10V～60V, and output voltage is 24V; The first switching tube (S
1) and the 4th switching tube (S
4) the highest switching frequency be 100kHz, the lowermost switch frequency is 10kHz, the first switching tube (S
1) the minimum turn-off time be 0.5us, the 3rd switching tube (S
3) minimum service time be 0.5us.
Adopt the schematic diagram of buck DC converter control method of the present invention as shown in Figure 2.Under control method of the present invention, buck-boost converter has four kinds of mode of operations.
(1) when concerning, input and output voltage satisfies 0.95V
In＞V
oThe time, the first switching tube (S
1) with the highest switching frequency F
1max=100kHz operation is by regulating the service time regulated output voltage of the first switching tube, the 3rd switching tube (S
3) with fixing minimal switching frequency F
3min=10kHz and fixing minimum ON time T
3on_min=0.5us operation;
(2) work as 0.95V
In=V
o, the first switching tube (S
1) service time reach minimum turn-off time 0.5us, work as 0.95V
In＜V
o＜V
InThe time, the first switching tube (S
1) with fixing minimum turn-off time T
1off_min=0.5us operation is by regulating the first switching tube (S
1) switching frequency f
1Come regulated output voltage, the 3rd switching tube (S
3) still with fixing minimal switching frequency F
3min=10kHz and fixing minimum ON time T
3on_min=0.5us operation;
(3) work as V
In=V
oThe time, the first switching tube (S
1) switching frequency f
1Reach minimal switching frequency F
1min=10kHz works as V
In＜V
o＜1.05V
InThe time, the first switching tube (S
1) with fixing minimal switching frequency F
1min=10kHz and fixing minimum turn-off time T
1off_min=0.5us operation, the 3rd switching tube (S
3) with fixing minimum service time T
3on_min=0.5us operation is by regulating the 3rd switching tube (S
3) switching frequency f
3Come regulated output voltage;
(4) work as V
o=1.05V
InThe time, the switching frequency f of the 3rd switching tube
3Reach the highest switching frequency F
3max=100kHz works as V
o＞1.05V
InThe time, the first switching tube (S
1) still with fixing minimal switching frequency F
1min=10kHz and fixing minimum turn-off time T
1off_min=0.5us operation, the 3rd switching tube (S
3) with the highest fixing switching frequency F
3max=100kHz operation is by regulating the 3rd switching tube (S
3) service time t
3onCome regulated output voltage.
By the above-mentioned course of work as can be known: owing to being provided with the minimum turn-off of switching tube, minimum service time, the duty ratio of all switching tubes all is continually varying, assurance any time output voltage all can be regulated continuously, guarantee converter level and smooth, seamless switching between different mode of operations, and input and output voltage near the time, switching frequency reduces, thereby reduces the switching loss of converter, the efficient of Lifting Transform device.
Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. buck DC converter control method, this control method based on the buck DC converting of implementing by input source (Vin), first to fourth switching tube (S1, S2, S3, S4), inductance (L), filter capacitor (Co) and load (Ro) consist of, it is characterized in that, described buck DC converter control method is as follows: the first switching tube (S1) and the complementary conducting of second switch pipe (S2), the 3rd switching tube (S3) and the complementary conducting of the 4th switching tube (S4), when input voltage during greater than output voltage, buck-boost converter works in decompression mode, this moment by regulating the first switching tube (S1) switching frequency or service time regulation output voltage, and the 3rd switching tube (S3) is with fixing minimal switching frequency and fixing minimum ON time switch, when input voltage during less than output voltage, buck-boost converter works in boost mode, this moment by regulating the 3rd switching tube (S3) switching frequency or service time regulation output voltage, and the first switching tube (S1) is with fixing minimal switching frequency and fixing minimum turn-off clock switch work.
2. a kind of buck DC converter control method according to claim 1, it is characterized in that, when buck-boost converter works in decompression mode, if the turn-off time of the first switching tube (S1) does not reach the minimum value of setting, then the switching frequency of the first switching tube (S1) is fixed and is maximum, this moment is by regulating the service time regulation output voltage of the first switching tube (S1), when input voltage reduces, increase the service time of the first switching tube (S1), when input voltage increases, reduce the service time of the first switching tube (S1), if the turn-off time of the first switching tube (S1) reaches the minimum value of setting, then the turn-off time of the first switching tube (S1) is fixed and the minimum value for setting, come regulation output voltage by the switching frequency of regulating the first switching tube (S1) this moment, when input voltage reduces, reduces the switching frequency of the first switching tube (S1), when input voltage increases, increase the switching frequency of the first switching tube (S1).
3. a kind of buck DC converter control method according to claim 1, it is characterized in that, when buck-boost converter works in boost mode, if the service time of the 3rd switching tube (S3) does not reach the minimum value of setting, then the switching frequency of the 3rd switching tube (S3) is fixed and is maximum, this moment is by regulating the service time regulation output voltage of the 3rd switching tube (S3), when input voltage reduces, increase the service time of the 3rd switching tube (S3), when input voltage increases, reduce the service time of the 3rd switching tube (S3), if the service time of the 3rd switching tube (S3) reaches the minimum value of setting, then the service time of the 3rd switching tube (S3) is fixed and the minimum value for setting, when input voltage reduces, increase the switching frequency of the 3rd switching tube (S3) by regulating the switching frequency regulation output voltage of the 3rd switching tube (S3) this moment, when input voltage increases, reduce the switching frequency of the 3rd switching tube (S3).
4. a kind of buck DC converter control method according to claim 1 is characterized in that, the switching frequency of described the first switching tube (S1) and the 3rd switching tube (S3) all is not more than the maximum of setting and is not less than the minimum value of setting.
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|---|---|---|---|
| CN2011101845637A CN102857096A (en) | 2011-07-01 | 2011-07-01 | Control method for buck-boost direct-current converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101845637A CN102857096A (en) | 2011-07-01 | 2011-07-01 | Control method for buck-boost direct-current converter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887983A (en) * | 2014-03-21 | 2014-06-25 | 浙江大学 | Control method for double-tube cascade type buck-boost converter |
| CN107834875A (en) * | 2017-11-14 | 2018-03-23 | 西安矽力杰半导体技术有限公司 | A kind of frequency control circuit and its control method and switched mode converter |
| CN107994776A (en) * | 2017-12-28 | 2018-05-04 | 深圳市核达中远通电源技术股份有限公司 | A kind of One Buck-Boost converter body and its free switching control method |
| CN108322046A (en) * | 2018-03-05 | 2018-07-24 | 阳光电源股份有限公司 | Buck-boost type power optimization device and its control method and control device |
| CN113489323A (en) * | 2021-06-17 | 2021-10-08 | 连云港杰瑞电子有限公司 | Online real-time efficiency optimization control method and device for four-switch buck-boost converter |
| CN113938008A (en) * | 2020-06-29 | 2022-01-14 | 中兴通讯股份有限公司 | Bidirectional DC converter, control method thereof, control module and storage medium |
| WO2022233200A1 (en) * | 2021-05-07 | 2022-11-10 | Oppo广东移动通信有限公司 | Switch control circuit, electronic device and switch control method |
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| JP2005057954A (en) * | 2003-08-07 | 2005-03-03 | Seiko Instruments Inc | Step-up/step-down automatic switching circuit |
| US7176667B2 (en) * | 2005-06-20 | 2007-02-13 | Aimtron Technology Corp. | Buck-boost voltage converter |
| US7453247B2 (en) * | 2006-06-30 | 2008-11-18 | Analog Devices, Inc. | DC to DC voltage converter |
| US20100231189A1 (en) * | 2009-03-13 | 2010-09-16 | Richtek Technology Corp. | High efficiency buck-boost power converter |
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| JP2005057954A (en) * | 2003-08-07 | 2005-03-03 | Seiko Instruments Inc | Step-up/step-down automatic switching circuit |
| US7176667B2 (en) * | 2005-06-20 | 2007-02-13 | Aimtron Technology Corp. | Buck-boost voltage converter |
| US7453247B2 (en) * | 2006-06-30 | 2008-11-18 | Analog Devices, Inc. | DC to DC voltage converter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887983A (en) * | 2014-03-21 | 2014-06-25 | 浙江大学 | Control method for double-tube cascade type buck-boost converter |
| CN107834875A (en) * | 2017-11-14 | 2018-03-23 | 西安矽力杰半导体技术有限公司 | A kind of frequency control circuit and its control method and switched mode converter |
| CN107834875B (en) * | 2017-11-14 | 2020-10-09 | 西安矽力杰半导体技术有限公司 | Frequency control circuit, control method thereof and switch type converter |
| CN107994776A (en) * | 2017-12-28 | 2018-05-04 | 深圳市核达中远通电源技术股份有限公司 | A kind of One Buck-Boost converter body and its free switching control method |
| CN108322046A (en) * | 2018-03-05 | 2018-07-24 | 阳光电源股份有限公司 | Buck-boost type power optimization device and its control method and control device |
| CN108322046B (en) * | 2018-03-05 | 2020-03-24 | 阳光电源股份有限公司 | Boost-buck power optimizer and control method and control device thereof |
| CN113938008A (en) * | 2020-06-29 | 2022-01-14 | 中兴通讯股份有限公司 | Bidirectional DC converter, control method thereof, control module and storage medium |
| CN113938008B (en) * | 2020-06-29 | 2023-12-22 | 中兴通讯股份有限公司 | Bidirectional DC converter, control method thereof, control module thereof and storage medium |
| WO2022233200A1 (en) * | 2021-05-07 | 2022-11-10 | Oppo广东移动通信有限公司 | Switch control circuit, electronic device and switch control method |
| CN113489323A (en) * | 2021-06-17 | 2021-10-08 | 连云港杰瑞电子有限公司 | Online real-time efficiency optimization control method and device for four-switch buck-boost converter |
| CN113489323B (en) * | 2021-06-17 | 2022-05-13 | 连云港杰瑞电子有限公司 | Online real-time efficiency optimization control method and device for four-switch buck-boost converter |
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Application publication date: 20130102 |