CN102638167A - Parallel resonant converter circuit - Google Patents
Parallel resonant converter circuit Download PDFInfo
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- CN102638167A CN102638167A CN2011100367182A CN201110036718A CN102638167A CN 102638167 A CN102638167 A CN 102638167A CN 2011100367182 A CN2011100367182 A CN 2011100367182A CN 201110036718 A CN201110036718 A CN 201110036718A CN 102638167 A CN102638167 A CN 102638167A
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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
- H02M3/285—Single converters with a plurality of output stages connected in parallel
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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
- H02M3/01—Resonant DC/DC converters
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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
- H02M3/33571—Half-bridge at primary side of an isolation transformer
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0085—Partially controlled bridges
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a parallel resonant converter circuit which comprises at least two resonant converters running in an interleaving parallel mode. As the input end of each resonant converter is connected with an independent power supply terminal respectively, the power balance between the resonant converters can be realized through regulating the voltage connected with each resonant converter respectively, however, the power balance between the resonant converters is realized through regulating working frequencies in the prior art. Thus, the circuit provided by the invention can continuously have the interleaving parallel advantage of the resonant converters, can enable the ACs (Alternating Currents) on the output filter capacitors of the resonant converters to neutralize each other so as to reduce the power loss, and can achieve the power balance between the resonant converters.
Description
Technical field
The present invention relates to the Technics of Power Electronic Conversion technical field, particularly a kind of parallel resonance converter circuit.
Background technology
Referring to Fig. 1, this figure is a kind of controlled resonant converter circuit diagram of the prior art.
This controlled resonant converter comprises the first switching tube S1, second switch pipe S2, resonant capacitance Cr, resonant inductance Lr, transformer T, the first diode D1, the second diode D2, filter capacitor Co and load resistance Ro.
Be connected the two ends of input voltage vin after the first switching tube S1 and the second switch pipe S2 series connection; The resonant capacitance Cr resonant inductance L r of the common port process series connection of the first switching tube S1 and second switch pipe S2 is connected former limit winding one end of transformer T, the other end ground connection of the former limit winding of transformer T.One end of the secondary winding of transformer T connects the end of load resistance Ro through the first diode D1; The other end of secondary winding connects the other end of load resistance Ro through the second diode D2; The centre cap of secondary winding connects the other end of load resistance Ro; Filter capacitor Co is connected in parallel on the two ends of load resistance Ro.
But there are some shortcomings in controlled resonant converter, and output filter capacitor Co goes up higher alternating current and produces bigger power loss.In order further to reduce the alternating current on the output filter capacitor, generally use crisscross parallel and control controlled resonant converter.Crisscross parallel is meant that at least two controlled resonant converters have certain misphase angle operation with same frequency.When a plurality of controlled resonant converter crisscross parallels moved, the input of controlled resonant converter was connected in parallel usually, and output is connected in parallel on the same output filter capacitor.Alternating current on the output filter capacitor is cancelled each other, and therefore can reduce the alternating current on the output filter capacitor, thereby reduces power loss.
Because power-balance need be realized through output voltage and the output current of regulating controlled resonant converter.And the output voltage of controlled resonant converter and output current regulating need realize through the operating frequency of regulating controlled resonant converter.If each controlled resonant converter of crisscross parallel is operated in the different working frequency, with the advantage that loses crisscross parallel.Therefore, a plurality of controlled resonant converter crisscross parallel of the prior art is difficult to realize the power-balance between the controlled resonant converter.
Summary of the invention
The technical problem that the present invention will solve provides a kind of parallel resonance converter circuit, both can reduce the alternating current on the output filter capacitor, thereby reduces power loss, can realize again crisscross parallel each controlled resonant converter between power-balance.
The present invention provides a kind of parallel resonance converter circuit, comprises that the output of all controlled resonant converters is connected in parallel with at least two controlled resonant converters of the mode operation of crisscross parallel; The input of each controlled resonant converter is the different power end of separate connection respectively.
Preferably, said different power end is a plurality of independently DC sources;
The number of said DC source is identical with the number of controlled resonant converter, and the input of each controlled resonant converter connects a DC source.
Preferably, said different power end is the output of previous stage circuit.
Preferably, also comprise an output filter capacitor;
The output of all controlled resonant converters comprises first output and second output, and first output of all controlled resonant converters and second output are connected to the two ends of said output filter capacitor.
Preferably, said controlled resonant converter is the LLC controlled resonant converter.
Preferably, when the number of said controlled resonant converter was even number, the misphase angle during each controlled resonant converter crisscross parallel work was the 180/N degree; When the number of said controlled resonant converter was odd number, the misphase angle during each controlled resonant converter crisscross parallel work was (2*180)/N degree; Said N is the number of controlled resonant converter.
Preferably, when the controlled resonant converter with the crisscross parallel mode operation is two, be respectively first controlled resonant converter and second controlled resonant converter;
The output of the output of first controlled resonant converter and second controlled resonant converter is connected in parallel;
The input of the input of first controlled resonant converter and second controlled resonant converter is the different power end of separate connection respectively.
Preferably, said power end is first DC source and second DC source;
The input of said first controlled resonant converter connects first DC source; The input of said second controlled resonant converter connects second DC source.
Preferably, said first controlled resonant converter and the 90 degree operations of the second controlled resonant converter misphase.
Compared with prior art, the present invention has the following advantages:
Parallel resonance converter circuit provided by the invention comprises at least two controlled resonant converters with the crisscross parallel mode operation.Because the input of each controlled resonant converter is connected with power end independently respectively, like this, can realize the power-balance between each controlled resonant converter through the voltage of regulating each controlled resonant converter connection respectively.Needn't as prior art, realize through regulating operating frequency in order to realize the power-balance between each controlled resonant converter.Therefore; Circuit provided by the invention can continue to keep the advantage of controlled resonant converter crisscross parallel; The alternating current of each controlled resonant converter on output filter capacitor can be cancelled each other, reduce power loss, and realized the power-balance between each controlled resonant converter.
Description of drawings
Fig. 1 is a kind of controlled resonant converter circuit diagram of the prior art;
Fig. 2 is parallel resonance converter circuit embodiment one structure chart provided by the invention;
Fig. 3 is embodiment two structure charts of parallel resonance converter circuit provided by the invention;
Fig. 4 is parallel resonance converter circuit embodiment three structure charts provided by the invention;
Fig. 5 is Fig. 4 current corresponding oscillogram of the present invention;
Fig. 6 is the topological circuit figure of another kind of controlled resonant converter provided by the invention;
Fig. 7 is the topological circuit figure of another controlled resonant converter provided by the invention;
Fig. 8 is embodiment four structure charts of parallel resonance converter circuit provided by the invention;
Fig. 9 is embodiment five structure charts of parallel resonance converter circuit provided by the invention.
Embodiment
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, does detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Referring to Fig. 2, this figure is parallel resonance converter circuit embodiment one structure chart provided by the invention.
The parallel resonance converter circuit that the embodiment of the invention provides comprises that the output of all controlled resonant converters is connected in parallel with at least two controlled resonant converters of the mode operation of crisscross parallel; The input of each controlled resonant converter is the different power end of separate connection respectively.
As shown in Figure 2, this parallel resonance converter circuit comprises N controlled resonant converter, is respectively first controlled resonant converter, second controlled resonant converter, until the N controlled resonant converter.
As can be seen from Figure 2, the output of each controlled resonant converter is connected in parallel, and its output voltage is Vo.
The output of the parallel resonance converter that the embodiment of the invention provides is connected in parallel, and input is separately independently.The power supply ground that the input of each parallel resonance converter connects can be to distinguish independently DC source, also can be the output of previous stage circuit independently.
Below with each input connect be respectively independently DC source be that example is introduced.
The number of said DC source is identical with the number of controlled resonant converter, and the input of each controlled resonant converter connects a DC source.As shown in Figure 2, N the individual independently DC source of the corresponding N of controlled resonant converter is respectively the first DC source Vin1, the second DC source Vin2, until n DC source Vinn.The input that the input of first controlled resonant converter connects the first DC source Vin1, second controlled resonant converter connects the second DC source Vin2, and the input of N controlled resonant converter connects n DC source Vinn.
The parallel resonance converter circuit that the embodiment of the invention provides also comprises an output filter capacitor Vo;
The output of all controlled resonant converters comprises first output and second output, and first output of all controlled resonant converters and second output are connected to the two ends of said output filter capacitor Vo.
Said all controlled resonant converters move with same frequency.
Said all controlled resonant converters are with the mode operation of crisscross parallel.
Be that example is introduced with two controlled resonant converter parallel connections below.Referring to Fig. 3, this figure is embodiment two structure charts of parallel resonance converter provided by the invention.
The input of first controlled resonant converter connects the first DC source Vin1; The input of second controlled resonant converter connects the second DC source Vin2.
Iin1 and Iin2 represent the input current of first controlled resonant converter and second controlled resonant converter respectively, and Io1 and Io2 represent the output current of first controlled resonant converter and second controlled resonant converter respectively.
Suppose that M1 and M2 represent the direct voltage gain of first controlled resonant converter and second controlled resonant converter respectively, M1=Vo/Vin1 then, M2=Vo/Vin2.Therefore, according to law of conservation of energy, when the circuit stable state, Io1=Iin1/M1, Io2=Iin2/M2.Suppose Io1=Io2, then Vin2/Vin1=M1/M2=Iin1/Iin2.
Suppose that first controlled resonant converter has identical design parameter with second controlled resonant converter, under identical operating frequency, because the otherness of practical devices parameter, two controlled resonant converters possibly have different direct voltage gain M1, M2.Because first DC source and second DC source are independently, therefore, can different Vin1 be set and Vin2 realizes the power-balance between first controlled resonant converter and second controlled resonant converter according to Vin2/Vin1=M1/M2.
In sum, parallel resonance converter circuit provided by the invention comprises a plurality of controlled resonant converters with the crisscross parallel mode operation.Because the input of each controlled resonant converter is connected with power end independently respectively, like this, can realize the power-balance between each controlled resonant converter through the power supply of regulating each controlled resonant converter connection respectively.Needn't as prior art, realize through regulating operating frequency in order to realize the power-balance between each controlled resonant converter.Therefore, circuit provided by the invention can continue to keep the advantage of controlled resonant converter crisscross parallel, and the alternating current of each controlled resonant converter on output filter capacitor can be cancelled each other, and has realized the power-balance between each controlled resonant converter.
When a plurality of controlled resonant converter crisscross parallel provided by the invention moved, when the number of said controlled resonant converter was even number, the misphase angle during each controlled resonant converter crisscross parallel work was the 180/N degree; When the number of said controlled resonant converter was odd number, the misphase angle during each controlled resonant converter crisscross parallel work was (2*180)/N degree; Said N is the number of controlled resonant converter.
Be that example is introduced with the controlled resonant converter for the LLC controlled resonant converter below.
Referring to Fig. 4, this figure is parallel resonance converter circuit embodiment three structure charts provided by the invention.
As shown in Figure 4, first controlled resonant converter comprises the first switching tube S1, second switch pipe S2, the first resonant capacitance Cr1, the first resonant inductance Lr1, the first magnetizing inductance Lm1, the first transformer T1, the first diode D1 and the second diode D2.
The anode of the first DC source Vin1 is connected the negative terminal of the first DC source Vin1 successively with second switch pipe S2 through the first switching tube S1.
The common port of the first switching tube S1 and second switch pipe S2 is connected the negative terminal of the first DC source Vin1 successively through the first resonant capacitance Cr1, the first resonant inductance Lr1, the first magnetizing inductance Lm1.
First end of the secondary winding of the first transformer T1 connects first end of output filter capacitor Co through the first diode D1; Second end of the secondary winding of the first transformer T1 is through first end of second diode D2 connection output filter capacitor Co, and the centre cap of the first transformer T1 secondary winding connects second end of output filter capacitor Co.
Second controlled resonant converter comprises the 3rd switching tube S3, the 4th switching tube S4, the second resonant capacitance Cr2, the second resonant inductance Lr2, the second magnetizing inductance Lm2, the second transformer T2, the 3rd diode D3 and the 4th diode D4.
The anode of the second DC source Vin2 is connected the negative terminal of the second DC source Vin2 successively with the 4th switching tube S4 through the 3rd switching tube S3.
The common port of the 3rd switching tube S3 and the 4th switching tube S4 is connected the negative terminal of the second DC source Vin2 successively through the second resonant capacitance Cr2, the second resonant inductance Lr2 and the second magnetizing inductance Lm2.
First end of the secondary winding of the second transformer T2 connects first end of output filter capacitor Co through the 3rd diode D3; Second end of the secondary winding of the second transformer T2 is through first end of the 4th diode D4 connection output filter capacitor Co, and the centre cap of the second transformer T2 secondary winding connects second end of output filter capacitor Co.
Need to prove that the first magnetizing inductance Lm1 and the second magnetizing inductance Lm2 can be the magnetizing inductances of transformer self, also can be in addition and the parallelly connected magnetizing inductance of former limit winding of transformer.
Io1 is the output current of first controlled resonant converter, and Io2 is the output current of second controlled resonant converter.
Vo is the output voltage of these two controlled resonant converters.
Need to prove that first controlled resonant converter and second controlled resonant converter are preferably with misphase 90 degree operations.
Referring to Fig. 5, this figure is Fig. 4 current corresponding oscillogram.
Can find out significantly that from Fig. 5 the electric current I o1+Io2 on the output filter capacitor Co is littler than independent Io1, also the Io2 than independent is little.On output filter capacitor Co, realized like this purpose of two alternating currents counteractings can be reduced the power loss that alternating current brings like this.
Resonant tank in the controlled resonant converter among the embodiment shown in Figure 4 is a kind of of LLC resonant circuit, introduces several kinds of other LLC resonant circuits below.
It is understandable that resonant circuit of the prior art shown in Figure 1 also is a kind of of LLC resonant circuit.
Referring to Fig. 6, this figure is the topological circuit figure of another kind of controlled resonant converter provided by the invention.
LLC resonant circuit in this circuit comprises the resonant inductance Lr resonant capacitor C r on the former limit winding that is connected transformer T.The output of transformer T secondary winding also is connected with filter inductance Lo.
Referring to Fig. 7, this figure is the topological circuit figure of another controlled resonant converter provided by the invention.
It is understandable that the topological circuit of Fig. 1, Fig. 6 and single controlled resonant converter shown in Figure 7 all can be applied in the controlled resonant converter of a plurality of parallel connections shown in Figure 2.
Being to be that example is introduced with the power end of parallel resonance converter for DC source independently among the above embodiment, is that example is introduced with the power end of parallel resonance converter for the output of previous stage circuit independently below.
Referring to Fig. 8, this figure is embodiment four structure charts of parallel resonance converter circuit provided by the invention.
Each controlled resonant converter in the parallel resonance converter circuit among Fig. 8 is that example is introduced with LLC controlled resonant converter shown in Figure 7.
Parallel resonance converter circuit among Fig. 8 is that example is introduced with two controlled resonant converter parallel connections, and as can be seen from Figure 8, the input of two parallel resonance converters is independent, connects the output of previous stage circuit respectively; The output of two parallel resonance converters is connected in parallel on the two ends of output filter capacitor Co.
In order to introduce conveniently, the previous stage circuit of claiming each controlled resonant converter is an input module, and then the previous stage circuit of first controlled resonant converter is first input module, and the previous stage circuit of second controlled resonant converter is second input module.
Input module in the present embodiment is the Boost circuit, it is understandable that, input module is not limited to the Boost circuit, also can be Buck circuit or any one pfc circuit etc.As long as input module can be used as a power supply of controlled resonant converter.Input module can be the AC/DC circuit, also can be the DC/DC circuit.Be that example is introduced with the input module for the AC/DC circuit in the present embodiment.
As can be seen from Figure 8, first input module comprises the first diode D1, the second diode D2, the first switching tube S1, second switch pipe S2, the first filter capacitor Cin1.
Wherein, the first diode D1, the second diode D2, the first switching tube S1 and second switch pipe S2 form full-bridge circuit, are the first diode D1 and the first switching tube S1 on first brachium pontis, are the second diode D2 and second switch pipe S2 on second brachium pontis.
Second input module comprises the 5th diode D5, the 6th diode D6, the 5th switching tube S5, the 6th switching tube S6 and the second filter capacitor Cin2.
Wherein, the 5th diode D5, the 6th diode D6, the 5th switching tube S5, the 6th switching tube S6 form full-bridge circuit, are the 5th diode D5 and the 5th switching tube S5 on first brachium pontis, are the 6th diode D6 and the 6th switching tube S6 on second brachium pontis.
First input module and second input module and inductance L b series connection back are power supply with Vac.
In addition; Parallel resonance converter circuit in the present embodiment also comprises control circuit; Be used to detect the output current of each controlled resonant converter, regulate the output voltage of input module according to said output current, thereby make each controlled resonant converter have identical output current; Identical power output realizes the power-balance between the parallel resonance converter.
The state of the closed and disconnected that particularly, control circuit can be through controlling the switching tube in each input module is controlled the output voltage of input module.
As can be seen from Figure 8, first input module and second input module are the relations of series connection.It is understandable that first input module and second input module also can be the relation of parallel connection; As shown in Figure 9; First input module and second input module are connected in parallel on the two ends of power supply Vac respectively through the first inductance L b1 and the second inductance L b2; Identical among other structures and Fig. 8 among Fig. 9, repeat no more at this.The input of each controlled resonant converter of the parallel resonance converter circuit that the embodiment of the invention provides is independently; Therefore the characteristic that has an autobalance power between each controlled resonant converter, the power supply that can connect through the input of regulating each controlled resonant converter is realized power-balance.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art; Do not breaking away under the technical scheme scope situation of the present invention; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to technical scheme of the present invention, or are revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical scheme of the present invention, all still belongs in the scope of technical scheme protection of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (9)
1. a parallel resonance converter circuit is characterized in that, comprises that the output of all controlled resonant converters is connected in parallel with at least two controlled resonant converters of the mode operation of crisscross parallel; The input of each controlled resonant converter is the different power end of separate connection respectively.
2. parallel resonance converter circuit according to claim 1 is characterized in that, said different power end is a plurality of independently DC sources;
The number of said DC source is identical with the number of controlled resonant converter, and the input of each controlled resonant converter connects a DC source.
3. parallel resonance converter circuit according to claim 1 is characterized in that, said different power end is the output of previous stage circuit.
4. according to claim 2 or 3 described parallel resonance converter circuits, it is characterized in that, also comprise an output filter capacitor;
The output of all controlled resonant converters comprises first output and second output, and first output of all controlled resonant converters and second output are connected to the two ends of said output filter capacitor.
5. according to claim 2 or 3 described parallel resonance converter circuits, it is characterized in that said controlled resonant converter is the LLC controlled resonant converter.
6. according to claim 2 or 3 described parallel resonance converter circuits, it is characterized in that when the number of said controlled resonant converter was even number, the misphase angle during each controlled resonant converter crisscross parallel work was the 180/N degree; When the number of said controlled resonant converter was odd number, the misphase angle during each controlled resonant converter crisscross parallel work was (2*180)/N degree; Said N is the number of controlled resonant converter.
7. parallel resonance converter circuit according to claim 1 is characterized in that, when the controlled resonant converter with the crisscross parallel mode operation is two, is respectively first controlled resonant converter and second controlled resonant converter;
The output of the output of first controlled resonant converter and second controlled resonant converter is connected in parallel;
The input of the input of first controlled resonant converter and second controlled resonant converter is the different power end of separate connection respectively.
8. parallel resonance converter circuit according to claim 7 is characterized in that, said power end is first DC source and second DC source;
The input of said first controlled resonant converter connects first DC source; The input of said second controlled resonant converter connects second DC source.
9. according to claim 7 or 8 described parallel resonance converter circuits, it is characterized in that said first controlled resonant converter and the 90 degree operations of the second controlled resonant converter misphase.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100367182A CN102638167A (en) | 2011-02-12 | 2011-02-12 | Parallel resonant converter circuit |
| PCT/CN2011/082725 WO2012106965A1 (en) | 2011-02-12 | 2011-11-23 | Parallel resonant converter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100367182A CN102638167A (en) | 2011-02-12 | 2011-02-12 | Parallel resonant converter circuit |
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| CN102638167A true CN102638167A (en) | 2012-08-15 |
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| CN2011100367182A Pending CN102638167A (en) | 2011-02-12 | 2011-02-12 | Parallel resonant converter circuit |
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| WO (1) | WO2012106965A1 (en) |
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| CN114157158A (en) * | 2021-12-02 | 2022-03-08 | 襄阳九鼎昊天环保设备有限公司 | Multi-group composite high-frequency high-voltage electrostatic power supply |
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| CN105432008A (en) * | 2014-05-08 | 2016-03-23 | 三菱电机株式会社 | Power supply multiplexing system and power supply receiving unit |
| CN106712517A (en) * | 2015-11-12 | 2017-05-24 | 华为技术有限公司 | Resonant bidirectional conversion circuit and converter |
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| CN108900091B (en) * | 2018-07-06 | 2019-08-20 | 华南理工大学 | A kind of topological structure based on LLC resonant converter |
| CN113224945A (en) * | 2021-04-29 | 2021-08-06 | 北京机械设备研究所 | Topological structure of DC/DC power converter cascaded by Buck + CLCL resonant converters |
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