WO2012106965A1 - Circuit de convertisseurs résonants parallèles - Google Patents

Circuit de convertisseurs résonants parallèles Download PDF

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Publication number
WO2012106965A1
WO2012106965A1 PCT/CN2011/082725 CN2011082725W WO2012106965A1 WO 2012106965 A1 WO2012106965 A1 WO 2012106965A1 CN 2011082725 W CN2011082725 W CN 2011082725W WO 2012106965 A1 WO2012106965 A1 WO 2012106965A1
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WIPO (PCT)
Prior art keywords
resonant
resonant converter
parallel
converters
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/082725
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English (en)
Chinese (zh)
Inventor
胡永辉
赫尔特⋅弗兰克
施蒂德尔⋅安德鲁
武志贤
吴云
黄立巍
周朝阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vertiv Energy Systems Inc
Original Assignee
Emerson Network Power Energy Systems Noth America Inc
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Filing date
Publication date
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Publication of WO2012106965A1 publication Critical patent/WO2012106965A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/285—Single converters with a plurality of output stages connected in parallel
    • 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
    • H02M3/01—Resonant DC/DC converters
    • 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
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33571—Half-bridge at primary side of an isolation transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0048—Circuits or arrangements for reducing losses
    • H02M1/0054—Transistor switching losses
    • H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/0085—Partially controlled bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the present invention relates to the field of power electronic conversion technology, and in particular, to a parallel resonant converter circuit. Background technique
  • FIG. 1 a schematic diagram of a resonant converter circuit in the prior art is shown.
  • the resonant converter includes a first switch S1, a second switch S2, a resonant capacitor Cr, a resonant inductor Lr, a transformer T, a first diode D1, a second diode D2, a filter capacitor Co, and a load resistor.
  • the first switch tube S1 and the second switch tube S2 are connected in series and connected to the two ends of the input voltage Vin.
  • the common ends of the first switch tube S1 and the second switch tube S2 are connected to the transformer T through the series resonant capacitor Cr and the resonant inductor Lr.
  • the other end of the primary winding of the transformer T is grounded.
  • One end of the secondary winding of the transformer T is connected to one end of the load resistor Ro through the first diode D1; the other end of the secondary winding is connected to the other end of the load resistor Ro through the second diode D2; the center tap connection of the secondary winding
  • the other end of the load resistor Ro; the filter capacitor Co is connected in parallel across the load resistor Ro.
  • the resonant converter has some disadvantages, and a higher AC current on the output filter capacitor Co produces a large power loss.
  • the crosstalk is generally applied in parallel to control the resonant converter. Interleaved parallel means that at least two resonant converters operate at the same frequency with a certain phase error.
  • the input terminals of the resonant converter are usually connected in parallel, and the output terminals are connected in parallel to the same output filter capacitor. The AC current on the output filter capacitors cancel each other out, thus reducing the AC current on the output filter capacitor and reducing power loss.
  • the power balance needs to be achieved by adjusting the output voltage and output current of the resonant converter.
  • the adjustment of the output voltage and output current of the resonant converter is also achieved by adjusting the operating frequency of the resonant converter. If the individual resonant converters that are staggered in parallel operate at different operating frequencies, the advantages of staggered paralleling will be lost. Therefore, it is difficult to achieve power balance between the resonant converters by interleaving multiple resonant converters in the prior art.
  • the technical problem to be solved by the present invention is to provide a parallel resonant converter circuit, which can reduce the input The AC current on the filter capacitor is output, thereby reducing the power loss, and the power balance between the respective resonant converters in the staggered parallel connection can be realized.
  • the present invention provides a parallel resonant converter circuit comprising at least two resonant converters operating in an interleaved parallel mode, the outputs of all resonant converters being connected in parallel; the input terminals of each resonant converter are independently connected to different power supplies end.
  • the different power terminals are multiple independent DC sources
  • the number of DC sources is the same as the number of resonant converters, and the input of each resonant converter is connected to a DC source.
  • the different power terminals are outputs of the previous stage circuit.
  • an output filter capacitor is further included;
  • the output of all of the resonant converters includes a first output and a second output, and the first output and the second output of all of the resonant converters are respectively coupled across the output filter capacitor.
  • the resonant converter is a LLC resonant converter.
  • the phase difference angle of each resonant converter when operating in an interleaved manner is 180/N degrees; when the number of the resonant converters is an odd number, each resonant transformation
  • the wrong phase angle when the devices are interleaved in parallel is (2*180) / N degrees; the N is the number of resonant converters.
  • resonant converters when there are two resonant converters operating in the interleaved parallel mode, respectively a first resonant converter and a second resonant converter;
  • the output of the first resonant converter is connected in parallel with the output of the second resonant converter; the input of the first resonant converter and the input of the second resonant converter are independently connected to different power terminals.
  • the power terminal is a first DC source and a second DC source;
  • the input end of the first resonant converter is connected to a first direct current source; the input end of the second resonant converter is connected to a second direct current source.
  • the first resonant converter and the second resonant converter operate 90 degrees out of phase.
  • the present invention has the following advantages:
  • the parallel resonant converter circuit provided by the present invention comprises at least two resonant converters operating in an interleaved parallel mode. Since the input terminals of each resonant converter are respectively connected to independent power terminals, thus, The power balance between the individual resonant converters can be achieved by separately adjusting the voltage of each resonant converter connection. It is not necessary to adjust the operating frequency by adjusting the operating frequency in order to achieve power balance between the individual resonant converters as in the prior art.
  • the circuit provided by the invention can continue to maintain the advantages of the interleaved parallel connection of the resonant converters, so that the alternating currents of the respective resonant converters on the output filter capacitors can cancel each other, reduce the power loss, and realize the power between the respective resonant converters. balance.
  • FIG. 1 is a schematic circuit diagram of a resonant converter in the prior art
  • FIG. 2 is a structural diagram of a first embodiment of a parallel resonant converter circuit provided by the present invention
  • Embodiment 3 is a structural diagram of Embodiment 2 of a parallel resonant converter circuit provided by the present invention.
  • FIG. 4 is a structural diagram of a third embodiment of a parallel resonant converter circuit provided by the present invention.
  • Figure 5 is a current waveform diagram corresponding to Figure 4 of the present invention.
  • FIG. 6 is a topological circuit diagram of another resonant converter provided by the present invention.
  • FIG. 7 is a topological circuit diagram of still another resonant converter provided by the present invention.
  • Embodiment 8 is a structural diagram of Embodiment 4 of a parallel resonant converter circuit provided by the present invention.
  • Fig. 9 is a structural view showing the fifth embodiment of the parallel resonant converter circuit provided by the present invention.
  • FIG. 2 the figure is a structural diagram of a first embodiment of a parallel resonant converter circuit provided by the present invention.
  • the parallel resonant converter circuit provided by the embodiment of the invention comprises at least two resonant converters operating in an interleaved parallel mode, wherein the output ends of all the resonant converters are connected in parallel; the input ends of each resonant converter are independently connected differently Power terminal.
  • the parallel resonant converter circuit includes N resonant converters, which are a first resonant converter, a second resonant converter, and an N-th resonant converter, respectively.
  • the output ends of the parallel resonant converter provided by the embodiments of the present invention are connected in parallel, and the input ends are independent.
  • the power ground connected to the input end of each parallel resonant converter may be a separate DC source or an output of an independent previous stage circuit. The following is an example of connecting separate DC sources to each input.
  • the number of DC sources is the same as the number of resonant converters, and the input of each resonant converter is connected to a DC source.
  • the N resonant converters correspond to N independent DC sources, which are a first DC source Vin1 and a second DC source Vin2, respectively, until the nth DC source Vinn.
  • the input end of the first resonant converter is connected to the first DC source Vin1
  • the input end of the second resonant converter is connected to the second DC source Vin2
  • the input of the Nth resonant converter is connected to the nth DC source Vinn.
  • the parallel resonant converter circuit provided by the embodiment of the present invention further includes an output filter capacitor Vo; the output ends of all the resonant converters include a first output end and a second output end, and the first output end and the second output end of all the resonant converters The output ends are respectively connected to both ends of the output filter capacitor Vo.
  • All of the resonant converters operate in an interleaved parallel mode.
  • FIG. 3 there is shown a block diagram of a second embodiment of a parallel resonant converter provided by the present invention.
  • the input of the first resonant converter is connected to the first DC source Vin1; the input of the second resonant converter is connected to the second DC source Vin2.
  • Iinl and Iin2 represent the input currents of the first resonant converter and the second resonant converter, respectively, and Iol and Io2 represent the output currents of the first resonant converter and the second resonant converter, respectively.
  • the parallel resonant converter circuit includes a plurality of resonant converters operating in an interleaved parallel mode. Since the input terminals of each of the resonant converters are respectively connected to independent power supply terminals, the power balance between the respective resonant converters can be achieved by separately adjusting the power supply of each of the resonant converters. It is not necessary to achieve power balance between the various resonant converters as in the prior art. It is achieved by adjusting the operating frequency.
  • the circuit provided by the present invention can continue to maintain the advantages of the interleaved parallel connection of the resonant converters, so that the alternating currents of the respective resonant converters on the output filter capacitors can cancel each other, and the power balance between the respective resonant converters can be realized.
  • the phase difference angle of each resonant converter when operating in an interleaved manner is 180/N degrees;
  • the phase difference angle of each resonant converter when operating in an interleaved manner is (2*180) / N degrees; the N is the number of resonant converters.
  • the following uses a resonant converter as a LLC resonant converter as an example.
  • the figure is a structural diagram of a third embodiment of a parallel resonant converter circuit provided by the present invention.
  • the first resonant converter includes a first switching transistor S1, a second switching transistor S2, a first resonant capacitor Cr1, a first resonant inductor Lrl, a first magnetizing inductor Lml, a first transformer T1, and a first two.
  • the positive terminal of the first DC source Vin1 is sequentially connected to the negative terminal of the first DC source Vin1 through the first switching transistor S1 and the second switching transistor S2.
  • the common ends of the first switching transistor S1 and the second switching transistor S2 are sequentially connected to the negative terminal of the first DC source Vin1 through the first resonant capacitor Crl, the first resonant inductor Lrl, and the first magnetizing inductor Lml.
  • the first end of the secondary winding of the first transformer T1 is connected to the first end of the output filter capacitor Co through the first diode D1, and the second end of the secondary winding of the first transformer T1 is connected to the one end through the second diode D2 , the center tap of the secondary winding of the first transformer T1 is connected to the output filter
  • the second resonant converter includes a third switching transistor S3, a fourth switching transistor S4, a second resonant capacitor Cr2, a second resonant inductor Lr2, a second magnetizing inductor Lm2, a second transformer T2, a third diode D3, and a fourth Diode D4.
  • the positive terminal of the second DC source Vin2 is sequentially connected to the negative terminal of the second DC source Vin2 through the third switch S3 and the fourth switch S4.
  • the common ends of the third switching transistor S3 and the fourth switching transistor S4 are sequentially connected to the negative terminal of the second DC source Vin2 through the second resonant capacitor Cr2, the second resonant inductor Lr2, and the second magnetizing inductor Lm2.
  • the first end of the secondary winding of the second transformer T2 is connected to the first end of the output filter capacitor Co through the third diode D3, and the second end of the secondary winding of the second transformer T2 is connected through the fourth diode D4.
  • the first end of the output filter capacitor Co, the center tap of the secondary winding of the second transformer T2 is connected to the second end of the output filter capacitor Co.
  • first magnetizing inductance Lml and the second magnetizing inductance Lm2 may be the magnetizing inductance of the transformer itself or a magnetizing inductance connected in parallel with the primary winding of the transformer.
  • Lol is the output current of the first resonant converter
  • Io2 is the output current of the second resonant converter
  • Vo is the output voltage of the two resonant converters.
  • first resonant converter and the second resonant converter preferably operate at 90 degrees out of phase.
  • this figure is a current waveform diagram corresponding to Figure 4.
  • the current Iol+Io2 on the output filter capacitor Co is smaller than the lol alone and smaller than the Io2 alone. In this way, the purpose of canceling the two alternating currents on the output filter capacitor Co is achieved, which can reduce the power loss caused by the alternating current.
  • the resonant tank in the resonant converter of the embodiment shown in Fig. 4 is one of the LLC resonant circuits, and several other LLC resonant circuits are described below.
  • this figure is a topological circuit diagram of another resonant converter provided by the present invention.
  • the LLC resonant circuit in the circuit includes a resonant inductor connected to the primary winding of the transformer T.
  • a filter inductor Lo is also connected to the output of the secondary winding of the transformer T.
  • this figure is a topology circuit diagram of still another resonant converter provided by the present invention.
  • the power supply terminal of the parallel resonant converter is taken as an independent DC source as an example.
  • the output terminal of the parallel first resonant circuit is taken as an example.
  • FIG. 8 the figure is a structural diagram of a fourth embodiment of a parallel resonant converter circuit provided by the present invention.
  • Each of the resonant converter circuits in Fig. 8 is described by taking the LLC resonant converter shown in Fig. 7 as an example.
  • the parallel resonant converter circuit of Figure 8 is introduced by taking two resonant converters in parallel as an example. It can be seen from Fig. 8 that the input ends of the two parallel resonant converters are independent and respectively connected to the output ends of the previous stage circuits; the output ends of the two parallel resonant converters are connected in parallel at both ends of the output filter capacitor Co.
  • each resonant converter is referred to as an input module
  • the first stage circuit of the first resonant converter is a first input module
  • the first stage circuit of the second resonant converter is a second input. Module.
  • the input module in this embodiment is a Boost circuit. It can be understood that the input module is not limited to a Boost circuit, and may be a Buck circuit or any PFC circuit. As long as the input module can be used as a power source for the resonant converter.
  • the input module can be an AC/DC circuit or a DC/DC circuit. In this embodiment, an input module is an AC/DC circuit as an example.
  • the first input module includes a first diode D1, a second diode D2, a first switch tube S1, a second switch tube S2, and a first filter capacitor Cin1.
  • the first diode D1, the second diode D2, the first switch tube SI and the second switch tube S2 form a full bridge circuit
  • the first bridge arm is a first diode D1 and a first switch tube S1
  • the second bridge arm is a second diode D2 and a second switch S2.
  • the second input module includes a fifth diode D5, a sixth diode D6, a fifth switch tube S5, a sixth switch tube S6, and a second filter capacitor Cin2.
  • the fifth diode D5, the sixth diode D6, the fifth switch tube S5, and the sixth switch tube S6 form a full bridge circuit
  • the first bridge arm is a fifth diode D5 and a fifth switch tube S5.
  • the second bridge arm is a sixth diode D6 and a sixth switch tube S6.
  • the first input module and the second input module are connected in series with the inductor Lb and are powered by Vac.
  • the parallel resonant converter circuit in this embodiment further includes a control circuit for detecting an output current of each resonant converter, and adjusting an output voltage of the input module according to the output current, so that each resonant converter has The same output current, the same output power, achieves a power balance between the parallel resonant converters.
  • control circuit can control the output voltage of the input module by controlling the state of the closed and open switches of each of the input modules.
  • the first input module and the second input module are in a series relationship. It can be understood that the first input module and the second input module can also be in a parallel relationship. As shown in FIG. 9, the first input module and the second input module are respectively connected in parallel through the first inductor Lb1 and the second inductor Lb2.
  • the other structures in FIG. 9 are the same as those in FIG. 8, and are not described herein again.
  • the input terminals of the respective resonant converters of the parallel resonant converter circuit provided by the embodiments of the present invention are independent, so that each resonant converter has an automatic balancing power characteristic, and can be connected by adjusting the input end of each resonant converter.
  • the power supply is used to achieve power balance.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un circuit de convertisseurs résonants parallèles qui comprend au moins deux convertisseurs résonants fonctionnant en mode parallèle entrelacé, les sorties de tous les convertisseurs résonants étant montées en parallèle et les entrées de chaque convertisseur résonant étant connectées séparément à une borne d'alimentation électrique différente. Le circuit de convertisseurs résonants parallèles permet aux courants alternatifs des condensateurs de filtrage de sortie des convertisseurs résonants de se neutraliser mutuellement, de manière à réduire la consommation électrique, et permet d'atteindre un équilibre de puissance entre les convertisseurs résonants en régulant la tension appliquée à chaque convertisseur résonant, respectivement.
PCT/CN2011/082725 2011-02-12 2011-11-23 Circuit de convertisseurs résonants parallèles Ceased WO2012106965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110036718.2 2011-02-12
CN2011100367182A CN102638167A (zh) 2011-02-12 2011-02-12 一种并联谐振变换器电路

Publications (1)

Publication Number Publication Date
WO2012106965A1 true WO2012106965A1 (fr) 2012-08-16

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CN (1) CN102638167A (fr)
WO (1) WO2012106965A1 (fr)

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US9647548B2 (en) 2015-03-13 2017-05-09 Infineon Technologies Austria Ag Method for operating a power converter circuit and power converter circuit
US9793803B2 (en) 2013-03-15 2017-10-17 Infineon Technologies Austria Ag Power converter circuit
CN113824293A (zh) * 2021-08-19 2021-12-21 广州金升阳科技有限公司 一种输入串联输出并联的电源系统
CN114157158A (zh) * 2021-12-02 2022-03-08 襄阳九鼎昊天环保设备有限公司 一种多组复合高频高压静电电源

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CN103780081B (zh) 2012-10-22 2019-09-13 山特电子（深圳）有限公司 交错式llc均流变换器
CN104578791B (zh) * 2013-10-15 2018-01-23 南京博兰得电子科技有限公司 并联的谐振变换器及其控制方法
WO2015170387A1 (fr) * 2014-05-08 2015-11-12 三菱電機株式会社 Système de multiplexage d'alimentation électrique et unité de réception d'alimentation électrique
CN106712517A (zh) * 2015-11-12 2017-05-24 华为技术有限公司 一种谐振双向变换电路以及变换器
CN107769565A (zh) * 2016-08-23 2018-03-06 南京中兴新软件有限责任公司 谐振变换器及电流处理方法
CN108616215A (zh) * 2016-12-13 2018-10-02 深圳职业技术学院 一种谐振电路
CN108900091B (zh) * 2018-07-06 2019-08-20 华南理工大学 一种基于llc谐振变换器的拓扑结构
CN113224945A (zh) * 2021-04-29 2021-08-06 北京机械设备研究所 一种Buck+CLCL谐振变换器级联的DC/DC功率变换器拓扑结构

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US9793803B2 (en) 2013-03-15 2017-10-17 Infineon Technologies Austria Ag Power converter circuit
US9647548B2 (en) 2015-03-13 2017-05-09 Infineon Technologies Austria Ag Method for operating a power converter circuit and power converter circuit
US10122276B2 (en) 2015-03-13 2018-11-06 Infineon Technologies Austria Ag Method for operating a power converter circuit and power converter circuit
US10673334B2 (en) 2015-03-13 2020-06-02 Infineon Technologies Austria Ag Method for operating a power converter circuit and power converter circuit
CN113824293A (zh) * 2021-08-19 2021-12-21 广州金升阳科技有限公司 一种输入串联输出并联的电源系统
CN113824293B (zh) * 2021-08-19 2024-01-16 广州金升阳科技有限公司 一种输入串联输出并联的电源系统
CN114157158A (zh) * 2021-12-02 2022-03-08 襄阳九鼎昊天环保设备有限公司 一种多组复合高频高压静电电源

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