CN109687715A - A kind of converter and its control method improving LLC gain ranging - Google Patents
A kind of converter and its control method improving LLC gain ranging Download PDFInfo
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- CN109687715A CN109687715A CN201811569155.1A CN201811569155A CN109687715A CN 109687715 A CN109687715 A CN 109687715A CN 201811569155 A CN201811569155 A CN 201811569155A CN 109687715 A CN109687715 A CN 109687715A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- 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
Abstract
The invention discloses a kind of converters and its control method for improving LLC gain ranging, input power Vin, primary side full-bridge switching network, LLC resonant network, the transformer T1 input other end are connected with single-pole single-throw(SPST relay K1 and single-pole double-throw relay K2 series arm；Secondary side full-bridge rectification network, output capacitance Co and output loading RL.The present invention is while improving LLC resonant converter gain ranging it is also ensured that converter still is able to full power output when low pressure exports, further improve the invariable power range of converter, frequency adjustment range is reduced, the efficiency in gamut is improved, improves the product competitiveness of power module.
Description
Technical field
The present invention relates to a kind of converters and its control method for improving LLC gain ranging, belong to convertor controls technology
Field.
Background technique
Currently, the variation range of batteries of electric automobile voltage is more and more wider, LLC with the fast development of new-energy automobile
Topological structure has a clear superiority in efficiency, volume and power density compared with other topological structures, therefore has obtained extensive
Using and research.
But due to the limitation of the limitation and intrinsic working characteristics that adjust frequency range, for the electricity of such wide scope
Cell voltage LLC resonant converter is also difficult to cope with, and simple frequency modulation control is not able to satisfy the output requirement of wide scope, frequency modulation and arteries and veins
Although the hybrid modulation stratgy that width modulation combines can cannot fully achieve ZVS in low pressure output with wide range output
So as to cause efficiency reduction, temperature rise is also difficult to meet design requirement, it is therefore desirable to a kind of LLC change that can adapt to wide range output
Parallel operation and control method.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of transformation for improving LLC gain ranging
Device and its control method, in the converter increase by two relays, according to different output voltages switch converter be full-bridge LLC or
Half-bridge LLC operating mode reduces the adjustable range of working frequency while realizing wide range output voltage, improves system effect
Rate reduces volume.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of converter improving LLC gain ranging, comprising: input power Vin, primary side full-bridge switching network, the original
Side full-bridge switching network includes: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, and the metal-oxide-semiconductor Q1 goes here and there with metal-oxide-semiconductor Q2 phase
Connection, the metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4 are in parallel after being connected in series with the series arm of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2；LLC resonant network,
The LLC resonant network includes: resonant capacitance Cr, resonant inductance Lr, transformer T1, the resonant capacitance Cr and resonant inductance Lr
It is connected in series, series arm one end of resonant capacitance Cr and resonant inductance Lr are connected between metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2, the other end
It is connected with transformer T1 input one end, the transformer T1 input other end is connected with single-pole double-throw relay K2；It is described
Single-pole double-throw relay K2 first port is connected between metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4, and second port is connected to the S of metal-oxide-semiconductor Q4
Pole；The one end single-pole single-throw(SPST relay K1 is connected between metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2, and the other end is connected to metal-oxide-semiconductor Q3 and metal-oxide-semiconductor
Between Q4；Secondary side full-bridge rectification network, the pair side full-bridge rectification network include: diode D1, diode D2, diode D3,
Diode D4, the diode D1, diode D2 are connected in series, diode D3, diode D4 be connected in series after with diode D1, two poles
Pipe D2 series arm is in parallel；Output capacitance Co and output loading RL respectively with diode D1, diode D2 series arm mutually simultaneously
Connection；Described transformer T1 output end one end is connected between diode D1, diode D2, the other end and diode D3, two poles
It is connected between pipe D4；The series arm of the input power Vin and metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 are in parallel.
Preferably, the input power Vin uses the busbar voltage of AC/DC output end.
Preferably, the single-pole single-throw(SPST relay K1, single-pole double-throw relay K2 can use metal-oxide-semiconductor, IGBT, controllable
Silicon or other devices substitution.
Preferably, the diode in the primary side full-bridge switching network can be substituted with metal-oxide-semiconductor.
A kind of control method for the converter improving LLC gain ranging, includes the following steps:
Step 1: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, the metal-oxide-semiconductor Q4 of primary side full-bridge switching network respectively correspond driving letter
Number Vgs1, Vgs2, Vgs3, Vgs4, the frequency of driving signal compared with reference voltage or are sampled by sampling and outputting voltage
Electric current is exported compared with reference current, control amount that obtained error amount obtains after closed-loop regulator is arranged, for protecting
Card output voltage or output electric current work according to setting value.
Step 2: when output voltage is higher than the setting value of pattern switching, single-pole single-throw(SPST relay K1 is disconnected, single-pole double throw
Relay K2 closes at the position of first port, and converter is full-bridge LLC operating mode at this time；
Step 3: when output voltage is lower than the setting value of pattern switching, single-pole single-throw(SPST relay K1 closure, single-pole double throw
Relay K2 closes at the position of second port, and converter work at this time is in half-bridge LLC operating mode.
Preferably, when converter work in full-bridge LLC operating mode, Vgs1 and Vgs4 driving signal frequency and
Duty ratio is identical, Vgs2 with Vgs3 driving signal frequency is identical with duty ratio, Vgs1 and Vgs2 driving signal phase complements, Vgs3
With Vgs4 driving signal phase complements；When converter work in half-bridge LLC in mode, Vgs1 and Vgs3 driving signal frequency and
Duty ratio is identical, Vgs2 with Vgs4 driving signal frequency is identical with duty ratio, Vgs1 and Vgs2 driving signal phase complements, Vgs3
With Vgs4 driving signal phase complements.
The utility model has the advantages that a kind of converter and its control method for improving LLC gain ranging provided by the invention, is being improved
It is also ensured that converter still is able to full power output when low pressure exports while LLC resonant converter gain ranging, into
One step improves the invariable power range of converter, reduces frequency adjustment range, improves the efficiency in gamut, improves power supply mould
The product competitiveness of block.
Detailed description of the invention
Fig. 1 is LLC resonant converter structural schematic diagram of the invention；
Fig. 2 is that the LLC resonant converter work of the invention output voltage in full-bridge and half-bridge mode is electric relative to input
The gain curve schematic diagram of pressure；
Fig. 3 is LLC resonant converter work circuit diagram in full-bridge mode of the invention；
Fig. 4 be LLC resonant converter of the invention work in full-bridge mode relay K1, K2 control mode and
Vgs1, Vgs2, Vgs3 and Vgs4 driving signal schematic diagram；
Fig. 5 is LLC resonant converter work circuit diagram in half-bridge mode of the invention；
Fig. 6 be LLC resonant converter of the invention work in half-bridge mode relay K1, K2 control mode and
Vgs1, Vgs2, Vgs3 and Vgs4 driving signal schematic diagram.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of converter for improving LLC gain ranging, comprising: input power Vin, primary side full-bridge switch net
Network, the primary side full-bridge switching network include: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, the metal-oxide-semiconductor Q1 and MOS
Pipe Q2 is connected in series, and the metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4 are in parallel after being connected in series with the series arm of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2；LLC is humorous
Vibrating network, the LLC resonant network include: resonant capacitance Cr, resonant inductance Lr, transformer T1, the resonant capacitance Cr with it is humorous
Vibration inductance Lr is connected in series, series arm one end of resonant capacitance Cr and resonant inductance Lr be connected to metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 it
Between, the other end is connected with transformer T1 input one end, the transformer T1 input other end and single-pole double-throw relay K2 phase
Connection；The single-pole double-throw relay K2 first port is connected between metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4, and second port is connected to MOS
The pole S of pipe Q4；The one end single-pole single-throw(SPST relay K1 is connected between metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2, and the other end is connected to metal-oxide-semiconductor Q3
Between metal-oxide-semiconductor Q4；Secondary side full-bridge rectification network, pair side full-bridge rectification network includes: diode D1, diode D2, two
Pole pipe D3, diode D4, the diode D1, diode D2 are connected in series, diode D3, diode D4 be connected in series after with diode
D1, diode D2 series arm are in parallel；Output capacitance Co and output loading RL connects with diode D1, diode D2 respectively to be propped up
Road is in parallel；Described transformer T1 output end one end is connected between diode D1, diode D2, the other end and diode
It is connected between D3, diode D4；The series arm of the input power Vin and metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 are in parallel.
The input power Vin uses the busbar voltage of AC/DC output end.
The single-pole single-throw(SPST relay K1, single-pole double-throw relay K2 can use metal-oxide-semiconductor, IGBT, silicon-controlled or other devices
Substitution.
Diode in the primary side full-bridge switching network can be substituted with metal-oxide-semiconductor.
A kind of control method for the converter improving LLC gain ranging: include the following steps:
Step 1: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, the metal-oxide-semiconductor Q4 of primary side full-bridge switching network respectively correspond driving letter
Number Vgs1, Vgs2, Vgs3, Vgs4, the frequency of driving signal compared with reference voltage or are sampled by sampling and outputting voltage
Electric current is exported with reference current compared with, control amount that obtained error amount obtains after closed-loop regulator is arranged, with guarantee
Output voltage or output electric current can work according to setting value.
Step 2: when output voltage is higher than the setting value of pattern switching, single-pole single-throw(SPST relay K1 is disconnected, single-pole double throw
Relay K2 closes at the position of first port, and converter is full-bridge LLC operating mode at this time；
Step 3: when output voltage is lower than the setting value of pattern switching, single-pole single-throw(SPST relay K1 closure, single-pole double throw
Relay K2 closes at the position of second port, and converter work at this time is in half-bridge LLC operating mode.
When converter work is in full-bridge LLC mode, Vgs1 with Vgs4 driving frequency is identical with duty ratio, Vgs2 and Vgs3
Driving frequency is identical with duty ratio, and Vgs1 and Vgs2 drive phase complements, and Vgs3 and Vgs4 drive phase complements；When converter work
Make in half-bridge LLC mode, Vgs1 with Vgs3 driving frequency is identical with duty ratio, Vgs2 and Vgs4 driving frequency and duty ratio phase
Together, Vgs1 and Vgs2 drives phase complements, and Vgs3 and Vgs4 drive phase complements.
The gain ranging of LLC resonant converter can be improved by the control method, guarantee converter in wide gain ranging
Interior operating point reduces system loss and improves efficiency still near resonance frequency；When being switched to half-bridge LLC operating mode simultaneously,
, can be in parallel by switching tube Q1 and Q3 by the configuration of relay K1 and K2, Q2 and Q4 are in parallel, and guaranteeing in low pressure still can be with
Full power output.
LLC resonant converter is single LLC converter independent utility, or passes through parallel connection for two LLC resonant converters
Or the derivative circuit that series connection obtains.
As shown in Fig. 2, LLC resonant converter work is in full-bridge mode and half after determining resonant parameter and power grade
Gain curve of the output voltage relative to input voltage can be accordingly obtained when bridge mode, if as can be seen from the figure LLC resonance
Converter only works in full-bridge LLC mode, in the operating frequency range of setting, gain variation range 0.8-1.6；If LLC
Controlled resonant converter only works in half-bridge LLC mode, in the operating frequency range of setting, gain variation range 0.4-0.8；If
When LLC resonant converter can switch between full-bridge LLC and half-bridge LLC mode, gain ranging can be extended to 0.4-1.6,
The gain ranging of LLC resonant converter being significantly improved, and in half-bridge LLC mode, switching tube Q1 and Q3 are parallel way,
Q2 and Q4 is parallel way, it is ensured that still can be exported in half-bridge operating mode with full power.
When work is in full-bridge mode, output voltage is as follows relative to the gain relationship of input voltage:
When work is in half-bridge mode, output voltage halves relative to the gain of input voltage, and relationship is as follows:
Wherein M (k, Q, fn) it is output voltage than gain between upper input voltage, k is inductance coefficent, and Q is quality factor, fn
To normalize resonance frequency.
As shown in figure 3, single-pole single-throw(SPST relay K1 is disconnected when output voltage is higher than the pattern switching voltage value of setting,
Single-pole double-throw relay K2 is connected to first port 1, and LLC resonant converter works in full-bridge mode.
As shown in figure 4, Vgs1, Vgs2, Vgs3, Vgs4 are duty ratio close to 50% square-wave signal at this time, wherein Vgs1
Identical with duty ratio with Vgs4 driving signal frequency, Vgs2 with Vgs3 driving signal frequency is identical with duty ratio, Vgs1 and Vgs2
Driving signal phase complements, Vgs3 and Vgs4 driving signal phase complements, between same bridge arm Vgs1 and Vgs2, Vgs3 and Vgs4
Equipped with certain dead time, two metal-oxide-semiconductors of same bridge arm can be prevented straight-through.
As shown in figure 5, when pattern switching voltage value of the output voltage lower than setting, single-pole single-throw(SPST relay K1 closure,
Single-pole double-throw relay K2 is connected to second port 2, and LLC resonant converter works in half-bridge mode.
As shown in fig. 6, Vgs1, Vgs2, Vgs3, Vgs4 are duty ratio close to 50% square-wave signal at this time, wherein Vgs1
Identical with duty ratio with Vgs3 driving signal frequency, Vgs2 with Vgs4 driving signal frequency is identical with duty ratio, Vgs1 and Vgs2
Driving signal phase complements, Vgs3 and Vgs4 driving signal phase complements, between same bridge arm Vgs1 and Vgs2, Vgs3 and Vgs4
Equipped with certain dead time, two metal-oxide-semiconductors of same bridge arm can be prevented straight-through.
The invention patent proposes a kind of LLC resonant converter that operating mode switching may be implemented, and illustrates to cut
Change the control method of circuit.This method can guarantee converter in low pressure output still while improving LLC gain ranging
Can full power output, further improve the invariable power range of converter, reduce frequency adjustment range, improve in gamut
Efficiency.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of converter for improving LLC gain ranging, it is characterised in that: include: input power Vin, primary side full-bridge switch net
Network, the primary side full-bridge switching network include: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, the metal-oxide-semiconductor Q1 and MOS
Pipe Q2 is connected in series, and the metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4 are in parallel after being connected in series with the series arm of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2；LLC is humorous
Vibrating network, the LLC resonant network include: resonant capacitance Cr, resonant inductance Lr, transformer T1, the resonant capacitance Cr with it is humorous
Vibration inductance Lr is connected in series, series arm one end of resonant capacitance Cr and resonant inductance Lr be connected to metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 it
Between, the other end is connected with transformer T1 input one end, the transformer T1 input other end and single-pole double-throw relay K2 phase
Connection；The single-pole double-throw relay K2 first port is connected between metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4, and second port is connected to MOS
The pole S of pipe Q4；The one end single-pole single-throw(SPST relay K1 is connected between metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2, and the other end is connected to metal-oxide-semiconductor Q3
Between metal-oxide-semiconductor Q4；Secondary side full-bridge rectification network, pair side full-bridge rectification network includes: diode D1, diode D2, two
Pole pipe D3, diode D4, the diode D1, diode D2 are connected in series, diode D3, diode D4 be connected in series after with diode
D1, diode D2 series arm are in parallel；Output capacitance Co and output loading RL connects with diode D1, diode D2 respectively to be propped up
Road is in parallel；Described transformer T1 output end one end is connected between diode D1, diode D2, the other end and diode
It is connected between D3, diode D4；The series arm of the input power Vin and metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 are in parallel.
2. a kind of converter for improving LLC gain ranging according to claim 1, it is characterised in that: the input power
Vin uses the busbar voltage of AC/DC output end.
3. a kind of converter for improving LLC gain ranging according to claim 1, it is characterised in that: the single-pole single-throw(SPST
Relay K1, single-pole double-throw relay K2 can use metal-oxide-semiconductor, IGBT, silicon-controlled or other devices substitution.
4. a kind of converter for improving LLC gain ranging according to claim 1, it is characterised in that: the primary side full-bridge
Diode in switching network can be substituted with metal-oxide-semiconductor.
5. a kind of control method of converter for improving LLC gain ranging according to any one of claims 1 to 4, special
Sign is: including the following steps:
Step 1: metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, the metal-oxide-semiconductor Q4 of primary side full-bridge switching network respectively correspond driving signal
Vgs1, Vgs2, Vgs3, Vgs4, the frequency of driving signal compared with reference voltage or are sampled defeated by sampling and outputting voltage
Electric current is compared with reference current out, and control amount that obtained error amount obtains after closed-loop regulator is arranged, for guaranteeing
Output voltage or output electric current work according to setting value；
Step 2: when output voltage is higher than the setting value of pattern switching, single-pole single-throw(SPST relay K1 is disconnected, single-pole double throw relay
Device K2 closes at the position of first port, and converter is full-bridge LLC operating mode at this time；
Step 3: when output voltage is lower than the setting value of pattern switching, single-pole single-throw(SPST relay K1 closure, single-pole double throw relay
Device K2 closes at the position of second port, and converter work at this time is in half-bridge LLC operating mode.
6. a kind of control method of converter for improving LLC gain ranging according to claim 5, it is characterised in that: when
Converter works in full-bridge LLC operating mode, Vgs1 with Vgs4 driving signal frequency is identical with duty ratio, and Vgs2 and Vgs3 drive
Dynamic signal frequency is identical with duty ratio, Vgs1 and Vgs2 driving signal phase complements, Vgs3 and Vgs4 driving signal phase complements；
When converter works in half-bridge LLC in mode, Vgs1 with Vgs3 driving signal frequency is identical with duty ratio, and Vgs2 and Vgs4 drive
Dynamic signal frequency is identical with duty ratio, Vgs1 and Vgs2 driving signal phase complements, Vgs3 and Vgs4 driving signal phase complements.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262442A (en) * | 2020-01-22 | 2020-06-09 | 湖北工业大学 | Resonance converter based ON ON/OFF control |
| CN111614267A (en) * | 2020-06-17 | 2020-09-01 | 深圳威迈斯新能源股份有限公司 | DCDC conversion circuit suitable for wide input voltage and vehicle-mounted charger |
| US20210050793A1 (en) * | 2019-05-31 | 2021-02-18 | Abb Power Electronics Inc. | Wide-range gain converters |
| WO2021198505A1 (en) * | 2020-04-03 | 2021-10-07 | Omicron Electronics Gmbh | Switchable amplifier |
| RU2793392C1 (en) * | 2020-04-03 | 2023-03-31 | Омикрон Электроникс Гмбх | Switchable amplifier |
| US11664717B2 (en) | 2021-10-26 | 2023-05-30 | Aes Global Holdings Pte Ltd. | Power converter modulation sequence |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015061392A (en) * | 2013-09-18 | 2015-03-30 | 公益財団法人鉄道総合技術研究所 | Voltage converter, electric motor vehicle, voltage conversion method, and program |
| CN106134059A (en) * | 2014-03-05 | 2016-11-16 | Abb瑞士股份有限公司 | Multiphase converter |
| CN106787765A (en) * | 2017-02-06 | 2017-05-31 | 山东鲁能智能技术有限公司 | The system and method for realizing ultra-wide output voltage range based on LLC topologys |
| CN107196513A (en) * | 2017-06-21 | 2017-09-22 | 国电南瑞科技股份有限公司 | The LLC resonant transform circuits and its method of a kind of suitable wide range output |
| JP2018019526A (en) * | 2016-07-28 | 2018-02-01 | トヨタ自動車株式会社 | Power conversion device |
-
2018
- 2018-12-20 CN CN201811569155.1A patent/CN109687715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015061392A (en) * | 2013-09-18 | 2015-03-30 | 公益財団法人鉄道総合技術研究所 | Voltage converter, electric motor vehicle, voltage conversion method, and program |
| CN106134059A (en) * | 2014-03-05 | 2016-11-16 | Abb瑞士股份有限公司 | Multiphase converter |
| JP2018019526A (en) * | 2016-07-28 | 2018-02-01 | トヨタ自動車株式会社 | Power conversion device |
| CN106787765A (en) * | 2017-02-06 | 2017-05-31 | 山东鲁能智能技术有限公司 | The system and method for realizing ultra-wide output voltage range based on LLC topologys |
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