CN109067187A - A kind of phase shift interleaved series three-level LLC resonance circuit - Google Patents
A kind of phase shift interleaved series three-level LLC resonance circuit Download PDFInfo
- Publication number
- CN109067187A CN109067187A CN201811104928.9A CN201811104928A CN109067187A CN 109067187 A CN109067187 A CN 109067187A CN 201811104928 A CN201811104928 A CN 201811104928A CN 109067187 A CN109067187 A CN 109067187A
- Authority
- CN
- China
- Prior art keywords
- resonance circuit
- llc resonance
- phase
- circuit
- switching device
- 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
Links
- 230000010363 phase shift Effects 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- H02M3/33569—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
- H02M3/33576—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 having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—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 having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of phase shift interleaved series three-level LLC resonance circuit, total input voltage of the circuit is vin, and the circuit includes the identical LLC resonance circuit of N phase structure, and LLC resonance circuit described in N phase is connected in series；The operating voltage of LLC resonance circuit described in each phase is vin/N, to reduce the operating voltage range of entire circuit；LLC resonance circuit described in each phase is all made of three level modes, to reduce the operating voltage of switching device in each LLC resonance circuit；Each phase LLC resonance circuit provides phase difference size identical driving signal, to supply energy to the load of the circuit output end at any time；It is 360/N ° that LLC resonance circuit described in each phase, which provides phase difference size,；The operating voltage of LLC resonance circuit described in each phase is vin/N；The operating voltage of every LLC resonance circuit switching tube is vin/2N；The present invention can be effectively reduced the operating voltage of open pipe in operating voltage and LLC circuit in each phase LLC resonance circuit, reduces cost, improves efficiency.
Description
Technical field
The invention belongs to circuit design field more particularly to a kind of phase shift interleaved series three-level LLC resonance circuits.
Background technique
In recent years since the price of environmental pollution and traditional energy rises steadily, photovoltaic power generation technology is advanced by leaps and bounds
Development, photovoltaic power generation has many advantages, such as that cleanliness without any pollution, the amount of containing are big, at the same also have supply it is unstable, by weather influenced compared with
Greatly, the features such as output voltage range is wide.Traditional LLC resonance circuit possesses the advantages that simple structure, higher efficiency, Sofe Switch,
There is very universal application always in communication power supply；But the switching device of single-phase LLC resonance circuit directly connect power it is defeated
Enter end, the voltage stress of each switching device is caused to be equal to input voltage, so need using the very high switching device of pressure voltage,
And the high switching device of voltage stress means the rising of the decline and cost of performance, leads to the conversion efficiency of LLC resonance circuit
It reduces；There is biggish ripple currents for single-phase LLC resonance circuit output end, and output filter capacitor is caused to generate heat and use rear class
There is interference in electric equipment.
Summary of the invention
The main purpose of the present invention is to provide a kind of phase shift interleaved series three-level LLC resonance circuit, the circuit energy
The operating voltage of each phase LLC resonance circuit is effectively reduced, promotes the conversion efficiency of resonance circuit, reduces cost, to solve
Low, the at high cost and low conversion efficiency problem of performance in traditional LLC circuit；Specific technical solution is as follows:
A kind of phase shift interleaved series three-level LLC resonance circuit, total input voltage of the circuit are vin, the circuit
Including the identical LLC resonance circuit of N phase structure, and the series connection of LLC resonance circuit described in N phase links；The electricity of LLC resonance described in each phase
The operating voltage on road is vin/N, to reduce the operating voltage range of entire circuit；LLC resonance circuit described in each phase is adopted
With three level modes, to reduce the operating voltage of switching device in each LLC resonance circuit；LLC described in each phase is humorous
The circuit that shakes provides phase difference size identical driving signal, to supply energy to the negative of the circuit output end at any time
It carries.
A further improvement of the present invention is that it is 360 °/N's that LLC resonance circuit described in each phase, which provides phase difference size,
Driving signal, to provide energy for the load of the circuit output end.
A further improvement of the present invention is that in LLC resonance circuit described in each phase primary side switching device operating voltage
For vin/2N.
A further improvement of the present invention is that being provided with the switch of preset quantity in each LLC resonance circuit
Device, the switching device is using series connection or is connected in parallel.
A further improvement of the present invention is that in the tri-level circuit employed in LLC resonance circuit described in every phase
Including a derided capacitors, and a derided capacitors resistive arrangement in parallel, the resistance are uniformly divided for the derided capacitors.
Phase shift interleaved series three-level LLC resonance circuit of the invention, by N phase LLC by way of phase shift interleaved series
Resonance circuit combines, and uses three-level topology in each phase LLC resonance circuit, in this way, on the one hand can be by N phase
The operating voltage of each phase of LLC resonance circuit is reduced to the 1/N of entire circuit, on the other hand can be by each phase LLC resonance electricity
The operating voltage of switching device in road is reduced to 1/2N；Meanwhile the driving signal in the present invention in each phase LLC resonance circuit
It is 360 °/N for phase difference size, can guarantees that the load of circuit output end at any time has equipment to provide energy in this way；
Compared with prior art, the switching device operating voltage of every LLC resonance circuit reduces in the present invention, can reduce the throwing of cost
Enter；It is capable of providing at any time and gives output end load energy, the ripple current of LLC circuit output end can be effectively reduced, and
And improve the overall efficiency and power supply quality of the machine with LLC circuit of the present invention.
Detailed description of the invention
Fig. 1 is the diagram meaning of phase shift interleaved series three-level LLC resonant circuit structure described in the embodiment of the present invention；
Fig. 2 is each phase three-level LLC in phase shift interleaved series three-level LLC resonance circuit described in the embodiment of the present invention
Circuit structure diagram signal；
Fig. 3 is the working state figure signal of the efficient point of each phase three-level LLC circuit in the embodiment of the present invention；
Fig. 4 is traditional LLC resonant circuit structure diagram meaning；
Fig. 5 is ideal half-bridge resonance circuit working waveform figure signal.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
Refering to Fig. 4, it is illustrated as the structure chart of traditional LLC resonance circuit, it can be seen that, the DC characteristic of LLC resonant transformation
It is divided into no-voltage workspace and zero current workspace, there are two resonance frequencies for this transformation: one is inductance Lr and capacitor Cr
Resonance point, can be by formulaIt calculates；Another resonance point is determined by inductance Lr, capacitor Cr and inductance Lm
It is fixed, it can be by formulaIt calculates；It, need to be work frequency when designing circuit in order to improve efficiency as far as possible
Rate is set near Fr1；And when the output voltage drops, biggish gain can be obtained by reducing working frequency；And lead to
It crosses and selects suitable resonant parameter, LLC resonant transformation can be allowed, which either to load variation or input voltage variation, can work zero
Voltage power supply area.
Refering to Fig. 5, it is illustrated as ideal half-bridge resonance circuit working waveform figure, it can be seen that, VgQ11 and VgQ12 points in figure
It is not the drive waveforms of switching device Q1, Q2 in traditional LLC resonance circuit, Ir is resonant inductance Lr inductive current waveform, and Im is
Static exciter inductance Lm current waveform, Id1 and Id2 are primary side output rectification diode waveform respectively, and IdQ11 then leads for Q1
Galvanization；Fig. 4 is specifically combined, waveform diagram is divided into 6 stages, detailed process according to different working condition are as follows:
T0~T1:Q1 shutdown, Q2 is open-minded, and inductance Lr and Cr carry out resonance, and secondary D1 shutdown, D2 is open-minded, and diode D1 is about
For twice of output voltage, energy is converted from Cr, Lr to secondary at this time.Until Q2 is turned off.
T1~T2: switching device Q1 and switching device Q2 is simultaneously turned off, and is now in dead time, at this time inductance Lr and electricity
The output capacitance for feeling Lm electric current to switching device Q2 charges, and discharges to the output capacitance of switching device Q1 until switching device Q2 is defeated
The voltage of capacitor is equal to vin out；Secondary diode D1 and diode D2 turns off Vd1=Vd2=0, when switching device Q1 is opened
The phase terminates.
T2~T3: switching device Q1 conducting, switching device Q2 shutdown, and diode D1 is connected, diode D2 shutdown, at this time
Vd2=2Vout, capacitor Cr and inductance Lr resonance are in fr1, and the electric current of inductance Ls returns to vin by switching device Q1 at this time, directly
Electric current to inductance Lr is zero, this phase terminates.
T3~T4: switching device Q1 conducting, switching device Q2 shutdown, diode D1 conducting, diode D2 shutdown, Vd2=
In fr1, the electric current of inductance Lr flows back to Power Groud back through switching device Q1 for 2Vout, capacitor Cr and inductance Lr resonance.Energy from
Input is transformed into secondary, terminates until switching device Q1 turns off the phase
T4~T5: switching device Q1, switching device Q2 are simultaneously turned off, diode D1, diode D2 shutdown, primary current I
(Lr+Lm) it charges, discharges to CosQ12, until the Coss voltage of switching device Q2 is zero to the Coss of Q1 switching device；At this time
Switching device Q2 diode is begun to turn on；Phase terminates when switching device Q2 is opened.
T5~T6: switching device Q1 shutdown, switching device Q2 conducting, diode D1 shutdown, diode D2 is open-minded, capacitor Cr
With inductance Ls resonance in frequency fr1, inductance Lr electric current returns to ground through switching device Q2；The phase knot when inductance Lr electric current is zero
Beam.
In conjunction with FIG. 1 to FIG. 3, in embodiments of the present invention, a kind of phase shift interleaved series three-level LLC resonance electricity is provided
Road, total input voltage of the circuit are vin, and circuit includes the identical LLC resonance circuit of N phase structure, and N phase LLC resonance is electric
Road series connection link；The operating voltage of each phase LLC resonance circuit is vin/N, to reduce the operating voltage range of entire circuit；
Each phase LLC resonance circuit is all made of three level modes, to reduce the work electricity of switching device in every LLC resonance circuit
Pressure；Each phase LLC resonance circuit provides phase difference size identical driving signal, to supply energy to circuit at any time
The load of output end.
In a particular embodiment, LLC resonance circuit described in each phase provides the driving signal that phase difference size is 360 °/N,
To provide energy for the load of circuit output end；And the operating voltage of LLC resonance circuit described in each phase is vin/2N.
In addition, in order to meet various different demands, the present invention is provided with opening for preset quantity in every LLC resonance circuit
Device is closed, switching device is using being connected in series or being connected in parallel, for the quantity and connection type of switching device setting, this hair
It is bright herein and to be not limited and fix, it can be selected according to the actual situation.
Next, being carried out specifically in conjunction with FIG. 1 to FIG. 3 with the phase shift interleaved series three-level LLC resonance circuit of three-phase
It is bright；Refering to fig. 1, the low pressure that three-phase series mode can divide the input voltage of power supply as vin/3, then pass through digitial controller control
Three staggered work of system can make each phase provide energy to output respectively, reduce the ripple current of output and improve efficiency；And
The operating voltage of each switching device is reduced to the half of input (vin/3) by the three-level LLC circuit of each phase again, can make LLC
Circuit selects the resistance to switching device forced down；Further, the present invention designs in the tri-level circuit in every phase LLC resonance circuit
One derided capacitors and resistance, derided capacitors are connected with resistor coupled in parallel, the load that can be accessed in entire resonance circuit by resistance
When smaller, so that derided capacitors are more preferably pressed, guarantee that the voltage of every one-phase circuit is equal.
Referring to Fig.2, in embodiment, three-level LLC circuit takes its frequency at work when being f=Fs best efficiency point
6 working conditions can be divided into, specifically see Fig. 3, wherein Fs can pass through formulaIt calculates；Again
It is secondary refering to Fig. 3 it is found that Vgs1 and Vgs2 is the drive waveforms of switching device Q11, Q12 respectively in figure, Vgs3 and Vgs4 are respectively
The drive waveforms of switching device Q13, Q14, Ip are resonant inductance Ls1 inductive current waveform, and Im is transformer leakage inductance Lm1 current wave
Shape, ID are the current waveform of primary side output rectifier diode Ds1 and diode Ds4, and Ids2 is then switching device Q12 electric conduction
Stream.Its principle Analysis is as follows:
The t0-t1 stage: it is open-minded simultaneously in t0 moment switching device Q11 and switching device Q12, and switching device Q13 and open
Device Q14 is closed to close；Primary current flows through switching device Q11 and switching device Q12, which is gradually increasing with sinusoidal form；
Secondary side diode Ds1 and diode Ds4 plays rectified action and conducting, and the electric current for flowing through inductance Lm is exciting current and resonance current
The sum of, it is equal in t1 moment primary side resonance current and exciting current.
The t1-t2 stage: in t1 moment switching device Q11 shutdown, switching device Q12 is connected, and flows through inductance Lm1 and inductance
The electric current of Ls1 passes through diode D11 afterflow, and the voltage on Simultaneous Switching device Q11 arrives vin/6 by clamped
The t2-t3 stage: it is turned off in t2 moment switching device Q11, switching device Q12, then primary current is to derailing switch
The junction capacity of part Q13 and switching device Q14 are discharged, the body of switching device Q13 and switching device Q14 after the completion of electric discharge
Diode current flow.
The t3-t4 stage: the voltage on t3 moment switching device Q13, switching device Q14 has been reduced to zero, at this moment switchs
Device Q13 and switching device Q14 are simultaneously turned on, so switching device Q13 and switching device Q14 work is in ZVS state, primary side is humorous
Vibration inductance Ls1 and capacitor C4 electric current start reversed resonance.
The t4-t5 stage: at the t4 moment similar to the stage 2, switching device Q14 is turned off and switching device Q13 is connected, and flows through inductance
The electric current of Lm1 and inductance Ls1 pass through D12 afterflow, and the voltage on Simultaneous Switching device Q14 arrives vin/6 by clamped.
The t5-t6 stage: at the t5 moment, switching device Q13, switching device Q14 are turned off, and then primary current goes to split
Close the junction capacity electric discharge of device Q11 and switching device Q12, switching device Q11 and switching device Q12 body two after the completion of electric discharge
Pole pipe conducting, prepares for the ZVS of switching device Q11 and switching device Q12 next time.
Phase shift interleaved series three-level LLC resonance circuit of the invention, by N phase LLC by way of phase shift interleaved series
Resonance circuit combines, and uses three-level topology in each phase LLC resonance circuit, in this way, on the one hand can be by N phase
The operating voltage of each phase of LLC resonance circuit is reduced to the 1/N of entire circuit, on the other hand can be by each phase LLC resonance electricity
The operating voltage of switching device in road is reduced to 1/2N；Meanwhile the driving signal in the present invention in each phase LLC resonance circuit
It is 360 °/N for phase difference size, can guarantees that the load of circuit output end at any time has equipment to provide energy in this way；
Compared with prior art, the switching device operating voltage of every LLC resonance circuit reduces in the present invention, can reduce the throwing of cost
Enter；It is capable of providing at any time and gives output end load energy, the ripple current of LLC circuit output end can be effectively reduced, and
And improve the overall efficiency and power supply quality of the machine with LLC circuit of the present invention.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the scope of the patents of the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, still can be to aforementioned each tool for coming for those skilled in the art
Technical solution documented by body embodiment is modified, or carries out equivalence replacement to part of technical characteristic.All benefits
The equivalent structure made of description of the invention and accompanying drawing content is directly or indirectly used in other related technical areas,
Similarly within the invention patent protection scope.
Claims (5)
1. a kind of phase shift interleaved series three-level LLC resonance circuit, total input voltage of the circuit is vin, which is characterized in that
The circuit includes the identical LLC resonance circuit of N phase structure, and the series connection of LLC resonance circuit described in N phase links；Described in each phase
The operating voltage of LLC resonance circuit is vin/N, to reduce the operating voltage range of entire circuit；LLC resonance described in each phase
Circuit is all made of three level modes, to reduce the operating voltage of switching device in each LLC resonance circuit；Each phase institute
Stating LLC resonance circuit provides phase difference size identical driving signal, defeated to supply energy to the circuit at any time
The load of outlet.
2. a kind of phase shift interleaved series three-level LLC resonance circuit according to claim 1, which is characterized in that Mei Yixiang
The LLC resonance circuit provides the driving signal that phase difference size is 360 °/N, to mention for the load of the circuit output end
For energy.
3. a kind of phase shift interleaved series three-level LLC resonance circuit according to claim 1, which is characterized in that Mei Yixiang
The operating voltage of primary side switching device is vin/2N in the LLC resonance circuit.
4. a kind of phase shift interleaved series three-level LLC resonance circuit according to claim 1, which is characterized in that Mei Yisuo
The switching device that preset quantity is provided in LLC resonance circuit is stated, the switching device is connected using series connection or parallel connection
It connects.
5. a kind of phase shift interleaved series three-level LLC resonance circuit according to claim 1, which is characterized in that every phase institute
Stating includes a derided capacitors in the tri-level circuit employed in LLC resonance circuit, and one electricity of derided capacitors parallel connection
Resistance design, the resistance are uniformly divided for the derided capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104928.9A CN109067187A (en) | 2018-09-21 | 2018-09-21 | A kind of phase shift interleaved series three-level LLC resonance circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104928.9A CN109067187A (en) | 2018-09-21 | 2018-09-21 | A kind of phase shift interleaved series three-level LLC resonance circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109067187A true CN109067187A (en) | 2018-12-21 |
Family
ID=64762352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104928.9A Pending CN109067187A (en) | 2018-09-21 | 2018-09-21 | A kind of phase shift interleaved series three-level LLC resonance circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109067187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752748A (en) * | 2019-08-29 | 2020-02-04 | 广东寰宇电子科技股份有限公司 | Soft switching circuit |
| CN110971127A (en) * | 2018-09-29 | 2020-04-07 | 中车株洲电力机车研究所有限公司 | DC-DC converter and signal modulation method thereof |
| CN112994499A (en) * | 2021-03-02 | 2021-06-18 | 济宁奥太电气有限公司 | Three-level half-bridge soft switch converter circuit, control system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545638A (en) * | 2012-01-20 | 2012-07-04 | 华为技术有限公司 | Interleaving three-level DC/DC converter and AC/DC converter |
| CN207234677U (en) * | 2017-09-20 | 2018-04-13 | 桂林电子科技大学 | The LLC resonant converter of crisscross parallel |
| WO2018077230A1 (en) * | 2016-10-27 | 2018-05-03 | 深圳市优优绿能电气有限公司 | Llc resonant converter having high-voltage output |
| CN209358439U (en) * | 2018-09-21 | 2019-09-06 | 安徽动力源科技有限公司 | A kind of phase shift interleaved series three-level LLC resonance circuit |
-
2018
- 2018-09-21 CN CN201811104928.9A patent/CN109067187A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545638A (en) * | 2012-01-20 | 2012-07-04 | 华为技术有限公司 | Interleaving three-level DC/DC converter and AC/DC converter |
| WO2018077230A1 (en) * | 2016-10-27 | 2018-05-03 | 深圳市优优绿能电气有限公司 | Llc resonant converter having high-voltage output |
| CN207234677U (en) * | 2017-09-20 | 2018-04-13 | 桂林电子科技大学 | The LLC resonant converter of crisscross parallel |
| CN209358439U (en) * | 2018-09-21 | 2019-09-06 | 安徽动力源科技有限公司 | A kind of phase shift interleaved series three-level LLC resonance circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971127A (en) * | 2018-09-29 | 2020-04-07 | 中车株洲电力机车研究所有限公司 | DC-DC converter and signal modulation method thereof |
| CN110971127B (en) * | 2018-09-29 | 2021-07-13 | 中车株洲电力机车研究所有限公司 | DC-DC converter and signal modulation method thereof |
| CN110752748A (en) * | 2019-08-29 | 2020-02-04 | 广东寰宇电子科技股份有限公司 | Soft switching circuit |
| CN112994499A (en) * | 2021-03-02 | 2021-06-18 | 济宁奥太电气有限公司 | Three-level half-bridge soft switch converter circuit, control system and control method thereof |
| CN112994499B (en) * | 2021-03-02 | 2022-03-29 | 济宁奥太电气有限公司 | Three-level half-bridge soft switch converter circuit, control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Single-phase three-level boost power factor correction converter | |
| Lai et al. | A single-stage AC/DC converter based on zero voltage switching LLC resonant topology | |
| CN110190751B (en) | Constant-gain bidirectional DC-DC resonant converter and control method thereof | |
| CN106505866B (en) | A kind of three Level Full Bridge DC converters | |
| CN108964474A (en) | A kind of three mode rectification topologies based on LLC resonant converter | |
| CN101902129A (en) | Current-type multi-resonance direct current (DC) converter | |
| CN109067187A (en) | A kind of phase shift interleaved series three-level LLC resonance circuit | |
| Liu et al. | Comprehensive analysis of three-phase three-level LC-Type resonant DC/DC converter with variable frequency control—Series resonant converter | |
| Kang et al. | ZVZCS single-stage PFC AC-to-DC half-bridge converter | |
| CN106787757A (en) | A kind of CLTCL resonance DCs converter | |
| CN108736756B (en) | Improved double-auxiliary resonant-pole three-phase soft switching inverter circuit | |
| CN114301312A (en) | Input-free energy storage inductor soft switch isolation type three-phase PFC converter and control method thereof | |
| CN105978327B (en) | A kind of booster converter and its control method | |
| CN209170230U (en) | DC-DC Switching Power Supply based on synchronous rectification mode | |
| CN109698627B (en) | Full-bridge DC/DC converter based on switched capacitor and modulation strategy thereof | |
| CN104935173A (en) | Current source type full-bridge PWM convertor with auxiliary converter circuit | |
| CN109302078A (en) | DC-DC Switching Power Supply based on synchronous rectification mode | |
| CN102223086B (en) | Generalized active soft-switching inversion type welding and cutting power circuit | |
| CN209358439U (en) | A kind of phase shift interleaved series three-level LLC resonance circuit | |
| CN106787756B (en) | A kind of CL-FT-CL resonance DC converter | |
| CN110224605B (en) | Full-bridge conversion circuit | |
| CN106253658A (en) | A kind of circuit of power factor correction | |
| CN211606392U (en) | Hysteresis arm auxiliary resonance circuit | |
| CN110112921B (en) | Zero-current soft-switching PWM full-bridge converter | |
| Gallo et al. | An unity high power factor power supply rectifier using a PWM AC/DC full bridge soft-switching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |