CN106329940A - Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter - Google Patents

Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter Download PDF

Info

Publication number
CN106329940A
CN106329940A CN201610976613.8A CN201610976613A CN106329940A CN 106329940 A CN106329940 A CN 106329940A CN 201610976613 A CN201610976613 A CN 201610976613A CN 106329940 A CN106329940 A CN 106329940A
Authority
CN
China
Prior art keywords
full
bridge
circuit
llc resonant
parallel structure
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.)
Pending
Application number
CN201610976613.8A
Other languages
Chinese (zh)
Inventor
沈艳霞
赵文辉
沈慧良
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.)
Jiangsu Jinling Mechanism Manufacture General Factory
Jiangnan University
Original Assignee
Jiangsu Jinling Mechanism Manufacture General Factory
Jiangnan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Jinling Mechanism Manufacture General Factory, Jiangnan University filed Critical Jiangsu Jinling Mechanism Manufacture General Factory
Priority to CN201610976613.8A priority Critical patent/CN106329940A/en
Publication of CN106329940A publication Critical patent/CN106329940A/en
Pending legal-status Critical Current

Links

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
    • H02M3/325—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
    • H02M3/3353—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 at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade

Landscapes

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

Abstract

The invention discloses a double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter, and belongs to the technical field of DC/DC converters. The double-transformer serial and parallel structure full-bridge LLC resonant converter comprises a main circuit and a control module, wherein the main circuit comprises an input direct-current source, a full-bridge switching network, an LLC resonant network, a secondary rectifier filter circuit and a battery pack load which are sequentially connected, and the control module comprises an output voltage sampling circuit, an output current sampling circuit, a feedback adjusting circuit, a control chip and a driving circuit. The full-bridge LLC resonant converter is provided with a double-transformer serial and parallel structure, primary windings of two transformers are serially connected, current flowing through the primary windings is the same, secondary current can be automatically balanced, turns of the primary windings are decreased, current stress of secondary windings and rectifier diodes can be reduced by secondary parallel connection, the size of a magnetic core can be decreased by the double-transformer serial and parallel structure, hot spots can be dispersed, heat management is facilitated, and the full-bridge LLC resonant converter is applicable to places with medium-high power electric vehicle chargers.

Description

A kind of dual transformer series parallel structure full-bridge LLC resonant converter
Technical field
The present invention relates to LLC harmonic technology, belong to DC/DC changer technical field, be specifically related to be applied to electric automobile A kind of dual transformer series parallel structure full-bridge LLC resonance DC/DC changer of charger.
Background technology
Electric automobile has the advantage of replacing oil by electricity, environment-friendly high-efficiency, is likely to replace fuel oil type automobile completely in the future, has Very vast potential for future development.Along with the development of electric automobile, the demand of the charger such as Vehicular charger, charging pile is also all with day Increase.Electric automobile battery charger typically has two-stage type structure, and prime is circuit of power factor correction, and rear class is isolated DC/DC Changer.The rear class DC/DC changer of electric automobile battery charger, as power output stage, is its core component.Tradition is hard The loss of switch DC/DC converter switches pipe and diode is very big, in order to improve efficiency, uses soft switch technique now more, as Phase shifting full bridge soft switch converter and LLC resonant converter.Phase-shifted full-bridge converter should because of advantages such as simple in construction, circuit maturations With extensively, the ZVS of switching tube can be realized, there is higher efficiency, but when it has intrinsic shortcoming such as duty-cycle loss, underloading Lagging leg difficulty realizes Sofe Switch, and rectifier bridge diode losses is bigger；Compared with phase-shifted full-bridge converter, LLC resonance becomes Parallel operation can not only realize the ZVS of whole switching tube, moreover it is possible to realizes the ZCS of rectifier bridge diode, has higher efficiency, therefore LLC resonant converter is applied to electric automobile battery charger more and more.
In order to meet the long flying power of electric automobile, electric automobile is equipped with jumbo set of cells.In order to adapt to this Planting change, electric automobile battery charger needs possess the spy that output voltage is high, power is big, power density is high, volume is little, efficiency is high Point, and along with the lifting of charger power grade, its main composition part DC/DC changer needs the power of transmission to increase, every From volume of transformer increase, volume of transformer increase cause magnetic core model common on market cannot meet this in powerful Design requirement, design of transformer difficulty strengthens, and single phase transformer heat radiation is concentrated and easily caused device aging problem.Additionally, transformation Body amasss the excessive design original intention having run counter to charger high power density, small size.
Summary of the invention
Based on background above technology, for the deficiency of traditional LLC controlled resonant converter, the present invention proposes a kind of dual transformer string Parallel-connection structure full-bridge LLC resonant converter.The full-bridge that the primary that the present invention proposes is connected, secondary two rectifier bridges are in parallel LLC resonant converter has good Sofe Switch characteristic, and dual transformer structure is conducive to reducing core volume, it is simple to heat management, Two primary series connection advantageously reduce the number of turn of armature winding, two transformer secondary outputs be parallel with beneficially reduce secondary windings and The current stress of commutation diode, it is not necessary to extra control can be achieved with power automatic equalization, improves output grade, tool The strongest engineer applied is had to be worth.
The present invention is achieved by the following technical solution:
Described a kind of dual transformer series parallel structure full-bridge LLC resonant converter, is applied on electric automobile battery charger, its It is characterised by: include main circuit and control module；Described main circuit includes input direct-current source, the full-bridge switch net being sequentially connected with Network, LLC resonant network, secondary current rectifying and wave filtering circuit and set of cells load, described full-bridge switching network input and input direct-current Source is connected, and the outfan of full-bridge switching network is connected with LLC resonant network input, the resonance electricity in described LLC resonant network The magnetizing inductance of sense, resonant capacitance and two primary windings is connected in series, the input of described secondary current rectifying and wave filtering circuit End is connected with transformer secondary output winding respectively, and the outfan of secondary current rectifying and wave filtering circuit is connected with set of cells load；Described control Module includes output voltage sampling circuit, output current sampling circuit, feedback regulating circuit, control chip, drive circuit.
Described input direct-current source is 380-420V DC voltage, and in charger, this voltage is by prime AC/DC power Factor correcting circuit provides.
The single-phase electricity die mould bridge inverter main circuit that described full-bridge switching network is made up of four power MOSFET tubes.
Described LLC resonant network includes resonant inductance, resonant capacitance, magnetizing inductance, and resonant inductance is independent external electricity Sense, magnetizing inductance is the magnetizing inductance sum of two transformators that primary windings connected in series connects.
Described secondary current rectifying and wave filtering circuit is made up of two full-bridge type rectification circuits, filter capacitors, D1-D4Four diodes The input of the full-bridge type rectification circuit of composition and transformator T1Secondary windings be connected, D5-D8The full-bridge of four diode compositions The input of formula rectification circuit and transformator T2Secondary windings be connected, the outfan of two full-bridge type rectification circuits is connected in parallel To filter capacitor two ends.
Described control module is for realizing the constant-current constant-voltage charging control of dual transformer series parallel structure full-bridge LLC changer System, it is provided that 4 tunnel voltage drive signals control the switch of switch MOSFET, and control module includes output voltage sampling circuit, output Current sampling circuit, feedback regulating circuit, control chip, drive circuit.Output voltage sampling circuit uses electric resistance partial pressure sampling, Output current sampling circuit uses current transformer to realize, and feedback regulating circuit includes constant-voltage control circuit and current constant control electricity Road, it is achieved the constant voltage constant current charging to set of cells load, control chip UCC25600 is big by the outer meeting resistance of regulation RT pin The maximum operation frequency of little setting LLC changer and minimum frequency of operation, control chip has excess current protective function, will use Electric capacity shunts the OC pin that lossless sample circuit gathers the electric current input UCC25600 of transformer primary side resonant network, drive circuit Mainly include amplifier and isolating transformer, two-way dutycycle about 50% that control chip UCC25600 is generated by amplifier, phase place phase The drive voltage signal differing from 180 degree is amplified, and is driven signal to be divided into 4 tunnels driving signal V two-way by isolating transformergs1、Vgs2、 Vgs3、Vgs4, wherein drive signal Vgs1、Vgs4Identical, drive signal Vgs2、Vgs3Identical, 4 roads drive signal to input full-bridge respectively and open Four power MOSFET switch tubes closing network realize controlling.
Described control chip UCC25600 is the chip being exclusively used in LLC resonant converter control produced by TI company, interior The agitator of the switching frequency of the integrated support in portion 30～350kHz, programmable Dead Time makes the circuit can be at minimum magnetization electricity Flowing down that to realize no-voltage open-minded, programmable soft-start time can improve the motility of LLC circuit design, and chip only 8 draws Foot, compared with the LLC control chip of other 16 feet on market, uses this chip to be conducive to simplifying PCB design, peripheral circuit letter Single, this is conducive to improving system effectiveness to a certain extent, reduces system cost.
Accompanying drawing explanation
Fig. 1 is the main circuit diagram of a kind of dual transformer series parallel structure full-bridge LLC resonant converter；
Fig. 2 is the control module theory diagram of a kind of dual transformer series parallel structure full-bridge LLC resonant converter；
Fig. 3 is that a kind of dual transformer series parallel structure full-bridge LLC resonant converter is less than resonant frequency f at switching frequencyr More than resonant frequency fmTime waveform timing chart.
Fig. 4 is the equivalent-circuit model of a kind of dual transformer series parallel structure full-bridge LLC resonant converter.
Fig. 5 is the equivalence of a kind of dual transformer series parallel structure full-bridge LLC resonant converter after simplification further to Fig. 4 Circuit model.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in detail.
As it is shown in figure 1, a kind of dual transformer series parallel structure full-bridge LLC resonant converter, it is applied to charging electric vehicle On machine, it is characterised in that: include main circuit and control module；Described main circuit includes input direct-current source, the full-bridge being sequentially connected with Switching network, LLC resonant network, secondary current rectifying and wave filtering circuit and set of cells load, described full-bridge switching network input is with defeated Entering DC source to be connected, the outfan of full-bridge switching network is connected with LLC resonant network input, in described LLC resonant network The magnetizing inductance of resonant inductance, resonant capacitance and two primary windings is connected in series, described secondary current rectifying and wave filtering circuit Input be connected with transformer secondary output winding respectively, the load of the outfan of secondary current rectifying and wave filtering circuit and set of cells is connected.
As it is shown in figure 1, full-bridge switching network is made up of four power MOSFET tube S1-S4, Ds1-Ds4It is respectively four The parasitic diode of MOSFET pipe, Cds1-Cds4It is respectively the parasitic capacitance of four MOSFET pipes.LLC resonant network is by resonance electricity Hold Cr, resonant inductance LrWith magnetizing inductance Lm1, magnetizing inductance Lm2Composition, resonant inductance LrIt is independent for independent resonant inductance External inductance or two transformator T1、T2Leakage inductance sum, magnetizing inductance is the encouraging of two transformators that primary windings connected in series connects Magnetoelectricity sense Lm1、Lm2Sum.Output rectifier and filter includes two full-bridge type rectification circuits and a filter capacitor Co, diode D1-D4The input of the full-bridge type rectification circuit of composition and transformator T1Secondary windings be connected, diode D5-D8The full-bridge of composition The input of formula rectification circuit and transformator T2Secondary windings be connected, the outfan of satisfactory to both parties bridge rectifier be connected in parallel to filter Ripple electric capacity CoTwo ends, the voltage filtered electric capacity C after rectificationoSet of cells load supplying, set of cells load both end voltage is given after filtering For Vo。
Fig. 2 is the control module theory diagram of a kind of dual transformer series parallel structure full-bridge LLC resonant converter, controls mould Block realizes the constant-current constant-voltage charging of dual transformer series parallel structure full-bridge LLC changer and controls, it is provided that 4 tunnel dutycycles about 50%, The voltage drive signals that phase is 180 degree, control module includes output voltage sampling circuit, output current sampling circuit, anti- Feedback regulation circuit, control chip, drive circuit.Output voltage sampling circuit uses electric resistance partial pressure sampling, output current sample electricity Road uses current transformer to realize, and modulation circuit realizes loop compensation, outside control chip UCC25600 is by regulation RT pin Connecting resistance size sets maximum operation frequency and the minimum frequency of operation of LLC changer, and control chip has overcurrent protection merit Can, the electric current using capacitive shunt method to gather transformer primary side resonant network is inputted the OC pin of UCC25600, drive circuit Mainly include amplifier and isolating transformer, two-way dutycycle about 50% that control chip UCC25600 is generated by amplifier, phase place phase The drive voltage signal differing from 180 degree is amplified, and is driven signal to be divided into 4 tunnels driving signal V two-way by isolating transformergs1、Vgs2、 Vgs3、Vgs4, wherein drive voltage signal Vgs1、Vgs4Identical, drive voltage signal Vgs2、Vgs3Identical, 4 tunnel drive voltage signal are divided Be not added to full-bridge switching network four MOSFET power switch pipe grid source two-stages realize opening and turning off of switching tube.
Fig. 3 is that a kind of dual transformer series parallel structure full-bridge LLC resonant converter is at switching frequency fsLess than resonant frequency fr More than resonant frequency fmTime main waveform timing chart, when transformer primary side to secondary transmission energy time, magnetizing inductance Lm1、Lm2Quilt Clamper, only Lr、CrParticipating in resonance, resonant frequency is fr；When transformer primary side does not transmits energy to secondary, and load voltage is by defeated Go out electric capacity CoDuring offer, magnetizing inductance also assists in resonance, and resonant frequency is fm。
f r = 1 2 π L r C r
f m = 1 2 π ( L r + L m 1 + L m 2 ) C r
From the main waveform timing chart shown in Fig. 3 it can be seen that power MOSFET tube S1、S4With power MOSFET tube S2、S3 Drive signal waveform amplitude is equal, phase 180 degree, magnetizing inductance Lm1、Lm2Electric current iLm1、iLm1Identical, diode D1、 D4、D5、D8Electric current iD1、iD4、iD5、iD8Identical, diode D2、D3、D6、D7Electric current iD2、iD3、iD6、iD7Identical.Due to two Primary windings in series connects, and the electric current of magnetizing inductance is equal, and secondary commutation bridge is connected in parallel electric current can automatic equalization.
Fig. 4 is the equivalent-circuit model of a kind of dual transformer series parallel structure full-bridge LLC resonant converter, in order to simplify point Analysis, generally uses first-harmonic approximate analysis method (FHA) that LLC resonant converter is set up equivalent-circuit model, V in figureifFor input electricity Pressure VdcThe fundametal compoment of the alternating voltage after full bridge inverter inversion, Rac1And Rac2For AC equivalent resistance, VacFor secondary Voltage equivalence is to the equivalent AC voltage on former limit.
Fig. 5 is the equivalence of a kind of dual transformer series parallel structure full-bridge LLC resonant converter after simplification further to Fig. 4 Circuit model, V in figureifFor input voltage VdcThe fundametal compoment of the alternating voltage after full bridge inverter inversion, magnetizing inductance LmFor Lm1、Lm2Sum, equivalent resistance ReqFor Rac1、Rac1Sum, setting up of equivalent-circuit model is conducive to simplifying resonant network Parameter designing, shortens the development time.

Claims (5)

1. a dual transformer series parallel structure full-bridge LLC resonant converter, is applied on electric automobile battery charger, and its feature exists In: include main circuit and control module；Input direct-current source that described main circuit includes being sequentially connected with, full-bridge switching network, LLC are humorous Vibrating network, secondary current rectifying and wave filtering circuit and set of cells load, described full-bridge switching network input is connected with input direct-current source, entirely The outfan of bridge switch network is connected with LLC resonant network input, the resonant inductance in described LLC resonant network, resonance electricity Hold and be connected in series with the magnetizing inductance of two primary windings, the input of described secondary current rectifying and wave filtering circuit respectively with change Depressor secondary windings is connected, and the outfan of secondary current rectifying and wave filtering circuit is connected with set of cells load；Described control module includes defeated Go out voltage sampling circuit, output current sampling circuit, feedback regulating circuit, control chip, drive circuit.
2. according to the dual transformer series parallel structure full-bridge LLC resonant converter described in claims 1, it is characterised in that: institute The input direct-current source stated is 380V-420V DC voltage.
3. according to the dual transformer series parallel structure full-bridge LLC resonant converter described in claims 1, it is characterised in that: institute The resonant inductance stating LLC resonant network is independent external inductance, and magnetizing inductance is two transformations that primary windings connected in series connects The magnetizing inductance summation of device.
4. according to the dual transformer series parallel structure full-bridge LLC resonant converter described in claims 1, it is characterised in that: institute State secondary current rectifying and wave filtering circuit to be made up of two full-bridge type rectification circuits, filter capacitors, wherein D1-D4Four diode compositions The input of full-bridge type rectification circuit and transformator T1Secondary windings be connected, D5-D8The full-bridge type rectification of four diode compositions The input of circuit and transformator T2Secondary windings be connected, the outfan of two full-bridge type rectification circuits be connected in parallel to filtering Electric capacity CoTwo ends.
5. according to the dual transformer series parallel structure full-bridge LLC resonant converter described in claims 1, it is characterised in that: institute State control module for realizing the constant-current constant-voltage charging control of dual transformer series parallel structure full-bridge LLC resonant converter main circuit System, described control chip is the special resonance chip UCC25600 that TI company produces.
CN201610976613.8A 2016-11-07 2016-11-07 Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter Pending CN106329940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610976613.8A CN106329940A (en) 2016-11-07 2016-11-07 Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610976613.8A CN106329940A (en) 2016-11-07 2016-11-07 Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter

Publications (1)

Publication Number Publication Date
CN106329940A true CN106329940A (en) 2017-01-11

Family

ID=57817392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610976613.8A Pending CN106329940A (en) 2016-11-07 2016-11-07 Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter

Country Status (1)

Country Link
CN (1) CN106329940A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106849296A (en) * 2017-03-15 2017-06-13 泰科天润半导体科技（北京）有限公司 A kind of charging module based on silicon carbide MOSFET
CN107834581A (en) * 2017-10-24 2018-03-23 华南理工大学 A kind of battery energy storage system of Multiple coil resonance separate current control
CN108964469A (en) * 2018-07-16 2018-12-07 江南大学 The double LLC resonant converters of a kind of and cascaded structure full-bridge
CN109841398A (en) * 2019-02-19 2019-06-04 南京航空航天大学 A kind of DC converting system based on integrated planar matrix transformer
CN109950943A (en) * 2018-10-12 2019-06-28 深圳市永联科技股份有限公司 A kind of four-way conversion Vehicular charger and control method
CN110138225A (en) * 2019-05-23 2019-08-16 北京理工大学 Control method for current source type dual transformer bidirectional DC-DC converter
CN110138242A (en) * 2019-05-23 2019-08-16 北京动力源科技股份有限公司 A kind of series rectifier topological structure and a kind of LLC resonance circuit
CN111656661A (en) * 2017-11-27 2020-09-11 塔尔·阿布拉莫维奇 Constant frequency DC/DC power converter
CN111786036A (en) * 2019-04-04 2020-10-16 纳恩博（北京）科技有限公司 Battery system and vehicle
CN111953385A (en) * 2020-09-18 2020-11-17 天津工业大学 Power line communication circuit and method based on switching ripple modulation
CN111987923A (en) * 2020-08-07 2020-11-24 西北工业大学 High-power high step-up ratio direct current converter adopting matrix transformer
CN112751487A (en) * 2019-10-31 2021-05-04 Abb瑞士股份有限公司 DC-DC power converter and method for DC-DC power converter
CN112953253A (en) * 2021-03-11 2021-06-11 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Unidirectional alternating current power electronic transformer topology and power balance control method thereof
WO2021227230A1 (en) * 2020-05-14 2021-11-18 深圳威迈斯新能源股份有限公司 Compatible high-power double-end output on-board charger and control method therefor
WO2021227231A1 (en) * 2020-05-14 2021-11-18 深圳威迈斯新能源股份有限公司 Dcdc architecture suitable for different input power grids and control method therefor
CN113725985A (en) * 2021-08-30 2021-11-30 河北凯翔电气科技股份有限公司 Variable speed fan power supply module for charging circuit and power supply method
CN113965091A (en) * 2021-11-03 2022-01-21 上海交通大学 Current equalizing circuit based on cascaded full bridge and control method thereof
US11387742B2 (en) 2019-09-09 2022-07-12 Sea Sonic Electronics Co., Ltd. Full-bridge resonant conversion circuit
EP3930164A4 (en) * 2019-02-22 2023-01-18 Alps Alpine Co., Ltd. Direct-current voltage conversion circuit and switching power source device
CN116207811A (en) * 2022-12-15 2023-06-02 苏州博沃创新能源科技有限公司 7kW bidirectional electric automobile off-vehicle direct current charging module
CN117220519A (en) * 2023-11-09 2023-12-12 深圳鹏城新能科技有限公司 Design method and simulation device of half-bridge series resonance LLC circuit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3644615B2 (en) * 1997-02-17 2005-05-11 Ｔｄｋ株式会社 Switching power supply
CN101043183A (en) * 2007-04-06 2007-09-26 艾默生网络能源有限公司 Power converter
CN101645653A (en) * 2008-08-04 2010-02-10 深圳Tcl新技术有限公司 LLC resonance circuit
CN102857109A (en) * 2012-08-28 2013-01-02 华南理工大学 High-power LLC (logical link control) resonant full-bridge converter based on DSP (digital signal processor)
CN203911762U (en) * 2014-06-06 2014-10-29 华中科技大学 LLC resonance converting device
US8988900B2 (en) * 2011-06-03 2015-03-24 Texas A&M University System DC capacitor-less power converters
CN104716844A (en) * 2015-03-18 2015-06-17 江苏绿城信息技术有限公司 Input-parallel output-parallel modularized direct current converter with soft switch
CN105226954A (en) * 2015-11-10 2016-01-06 华东交通大学 A kind of class LLC circuit based on wireless power transmission
CN105576981A (en) * 2016-01-28 2016-05-11 北京理工大学 Switching frequency adjusting method based on current cross feedback

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3644615B2 (en) * 1997-02-17 2005-05-11 Ｔｄｋ株式会社 Switching power supply
CN101043183A (en) * 2007-04-06 2007-09-26 艾默生网络能源有限公司 Power converter
CN101645653A (en) * 2008-08-04 2010-02-10 深圳Tcl新技术有限公司 LLC resonance circuit
US8988900B2 (en) * 2011-06-03 2015-03-24 Texas A&M University System DC capacitor-less power converters
CN102857109A (en) * 2012-08-28 2013-01-02 华南理工大学 High-power LLC (logical link control) resonant full-bridge converter based on DSP (digital signal processor)
CN203911762U (en) * 2014-06-06 2014-10-29 华中科技大学 LLC resonance converting device
CN104716844A (en) * 2015-03-18 2015-06-17 江苏绿城信息技术有限公司 Input-parallel output-parallel modularized direct current converter with soft switch
CN105226954A (en) * 2015-11-10 2016-01-06 华东交通大学 A kind of class LLC circuit based on wireless power transmission
CN105576981A (en) * 2016-01-28 2016-05-11 北京理工大学 Switching frequency adjusting method based on current cross feedback

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106849296A (en) * 2017-03-15 2017-06-13 泰科天润半导体科技（北京）有限公司 A kind of charging module based on silicon carbide MOSFET
CN107834581A (en) * 2017-10-24 2018-03-23 华南理工大学 A kind of battery energy storage system of Multiple coil resonance separate current control
CN111656661A (en) * 2017-11-27 2020-09-11 塔尔·阿布拉莫维奇 Constant frequency DC/DC power converter
CN111656661B (en) * 2017-11-27 2023-03-28 塔尔·阿布拉莫维奇 Constant frequency DC/DC power converter
CN108964469B (en) * 2018-07-16 2023-09-15 江南大学 Full-bridge double LLC resonant converter with parallel-series structure
CN108964469A (en) * 2018-07-16 2018-12-07 江南大学 The double LLC resonant converters of a kind of and cascaded structure full-bridge
CN109950943A (en) * 2018-10-12 2019-06-28 深圳市永联科技股份有限公司 A kind of four-way conversion Vehicular charger and control method
CN109841398A (en) * 2019-02-19 2019-06-04 南京航空航天大学 A kind of DC converting system based on integrated planar matrix transformer
US11811299B2 (en) 2019-02-22 2023-11-07 Alps Alpine Co., Ltd. Direct-current voltage conversion circuit and switching power-supply device
EP3930164A4 (en) * 2019-02-22 2023-01-18 Alps Alpine Co., Ltd. Direct-current voltage conversion circuit and switching power source device
CN111786036A (en) * 2019-04-04 2020-10-16 纳恩博（北京）科技有限公司 Battery system and vehicle
CN110138242A (en) * 2019-05-23 2019-08-16 北京动力源科技股份有限公司 A kind of series rectifier topological structure and a kind of LLC resonance circuit
CN110138225A (en) * 2019-05-23 2019-08-16 北京理工大学 Control method for current source type dual transformer bidirectional DC-DC converter
US11387742B2 (en) 2019-09-09 2022-07-12 Sea Sonic Electronics Co., Ltd. Full-bridge resonant conversion circuit
CN112751487A (en) * 2019-10-31 2021-05-04 Abb瑞士股份有限公司 DC-DC power converter and method for DC-DC power converter
WO2021227231A1 (en) * 2020-05-14 2021-11-18 深圳威迈斯新能源股份有限公司 Dcdc architecture suitable for different input power grids and control method therefor
WO2021227230A1 (en) * 2020-05-14 2021-11-18 深圳威迈斯新能源股份有限公司 Compatible high-power double-end output on-board charger and control method therefor
CN111987923A (en) * 2020-08-07 2020-11-24 西北工业大学 High-power high step-up ratio direct current converter adopting matrix transformer
CN111953385A (en) * 2020-09-18 2020-11-17 天津工业大学 Power line communication circuit and method based on switching ripple modulation
CN111953385B (en) * 2020-09-18 2023-11-14 天津工业大学 Power line communication circuit and method based on switch ripple modulation
CN112953253A (en) * 2021-03-11 2021-06-11 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Unidirectional alternating current power electronic transformer topology and power balance control method thereof
CN113725985A (en) * 2021-08-30 2021-11-30 河北凯翔电气科技股份有限公司 Variable speed fan power supply module for charging circuit and power supply method
CN113725985B (en) * 2021-08-30 2023-10-20 河北凯翔电气科技股份有限公司 Variable speed fan power supply module for charging circuit and power supply method
CN113965091A (en) * 2021-11-03 2022-01-21 上海交通大学 Current equalizing circuit based on cascaded full bridge and control method thereof
CN113965091B (en) * 2021-11-03 2023-10-27 上海交通大学 Cascade full-bridge-based current sharing circuit and control method thereof
CN116207811A (en) * 2022-12-15 2023-06-02 苏州博沃创新能源科技有限公司 7kW bidirectional electric automobile off-vehicle direct current charging module
CN116207811B (en) * 2022-12-15 2024-04-05 苏州博沃创新能源科技有限公司 7kW bidirectional electric automobile off-vehicle direct current charging module
CN117220519A (en) * 2023-11-09 2023-12-12 深圳鹏城新能科技有限公司 Design method and simulation device of half-bridge series resonance LLC circuit
CN117220519B (en) * 2023-11-09 2024-01-23 深圳鹏城新能科技有限公司 Design method and simulation device of half-bridge series resonance LLC circuit

Similar Documents

Publication Publication Date Title
CN106329940A (en) Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter
CN206341145U (en) A kind of dual transformer series parallel structure LLC resonant converter applied to electric automobile battery charger
CN105429313B (en) A kind of control method of the changeable radio energy transmission system of resonance compensation topology
CN103339843B (en) Switching power unit
CN101588139B (en) High power factor isolated buck-type power factor correction converter
CN111355398B (en) Bidirectional vehicle-mounted charger circuit integrated with DC/DC converter
CN103812359B (en) A kind of ac-dc conversion circuit and control method thereof
CN201352763Y (en) Phase-shifted full bridge zero-current and zero-voltage PWM converter
CN101854120B (en) High-efficiency multifunctional flyback converter
CN110224612A (en) Asymmetrical half-bridge converter and control method
US20110149606A1 (en) Ac-to-dc converting circuit applicable to power-charging module
CN103208849B (en) A kind of charging device
CN103595260A (en) Push-pull - flexible switching converter with serial-connected resonance unit
CN104917412A (en) Single stage power factor correction phase-shift full bridge topology circuit
CN106961220B (en) A kind of efficient LLC resonant converter in parallel with equal properties of flow
CN101860217A (en) ZVS full-bridge three-level converter with bilateral buffer network
CN109742965A (en) A kind of high-frequency isolation type AC-DC converter of single-phase crisscross parallel three level resonance formula
Li et al. A multi-MHz active clamp topology for high cost-performance wireless power transfer
CN115694203B (en) DC isolated converter capable of bidirectional conversion and control method thereof
CN106300993A (en) Brachium pontis multiplexing high-efficiency rate Full-bridge phase-shift device before and after one
CN107959429A (en) A kind of coupling inductance boosting inverter and its control method
CN101272097B (en) Multifunctional structure-changing type DC convertor
Patil et al. Review and Comparison of MV grid-connected Extreme Fast Charging Converters for Electric Vehicles
CN110299849A (en) A kind of interleaving shunt-wound two-transistor forward power converter of phase shifting control
CN207368884U (en) A kind of two-way Sofe Switch DC transfer circuit of wide scope

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170111

WD01 Invention patent application deemed withdrawn after publication