CN103368404A - Integrated inductor resonant converter - Google Patents
Integrated inductor resonant converter Download PDFInfo
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- CN103368404A CN103368404A CN2013103354893A CN201310335489A CN103368404A CN 103368404 A CN103368404 A CN 103368404A CN 2013103354893 A CN2013103354893 A CN 2013103354893A CN 201310335489 A CN201310335489 A CN 201310335489A CN 103368404 A CN103368404 A CN 103368404A
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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
- H02M3/33573—Full-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
- 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
- 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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- 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 discloses a resonant converter comprising a resonant circuit and a main transformer, wherein the output end of the resonant circuit is coupled with a primary winding of the main transformer, and the resonant circuit comprises double winding inductance units serially connected at the two ends of the primary winding of the main transformer, respectively. The invention further discloses a DC/DC converter adopting the resonant converter and a switching power supply, a single resonant inductor is changed into two windings, the coils are identical, the two windings are connected in reserve phases and act on an integrated inductor of a closed magnetic circuit. The magnetic coupling function of two reverse phase windings of the double winding inductance units isolates the effect of parasitic electricity parameters of the main transformer on the charge and discharge of a shunt capacitor of an electronic switch; and in the closed duration of the electronic switch, the residual energy of the main transformer and the resonant inductor is equally released to left and right half-bridge arm midpoint capacitors through the double winding inductance units, and the left and right half-bridge arm midpoint capacitors are simultaneously turned on at zero voltage.
Description
Technical field:
The invention belongs to electric and electronic technical field, relate to a kind of controlled resonant converter, be specifically related to LLC controlled resonant converter, DC/DC DC converter and Switching Power Supply.
Technical background:
Single inductance is all used in traditional LLC controlled resonant converter design, as shown in Figure 1, resonant circuit comprises a resonant inductance Lr who is serially connected in the former limit of main transformer winding one end, traditional resonant circuit adopts the design of single inductance, under the full-bridge converter pattern, there is following defective: in the electronic switch down periods, main transformer and resonance inductance L r discharge remaining energy Io, two and half brachium pontis mid point A and B about can not homenergic ground feeding back to, two and half brachium pontis mid points can not enter zero-voltage state simultaneously about causing; Efficient, the reliability variation of controlled resonant converter have been reduced.
Since coupling capacitance, turn-to-turn capacitance between the former limit of main transformer, the secondary winding, EMI electric capacity, the impact of various uncertain distributed capacitance
,In the electronic switch down periods, the dump energy Io that its main transformer and resonant inductance discharge, form uncertain loop current Io3 and Io4 by Equivalent Distributed capacitor C p1 and Cp2, because C1, C2, C3, C4 are the artificial additional capacitors of same capability, its capacity is far longer than the Cce of Q1, Q2, Q3, Q4, caused charging and discharging currents Io1 and the Io2 of C1, C2 and C3, C4 unequal, equivalent electric circuit such as Fig. 2, consequently two half-bridge mid point can not enter zero-voltage state simultaneously;
In number of patent application is 200810127974.0 document, adopt two inductance to be connected on respectively in the resonant tank, for above-mentioned reasons, can not solve the dump energy Io that transformer and inductance discharge, the problem of two and half brachium pontis mid point capacitor C 1C2 and C3C4 about homenergic ground discharges and gives.
Summary of the invention:
Purpose of the present invention solves the problems of the prior art exactly, a kind of controlled resonant converter is provided, in the electronic switch down periods, the dump energy Io that resonant tank discharges, can homenergic ground discharge give about two and half brachium pontis capacitor C 1C2 and C3C4, two half-bridge mid point enter zero-voltage state simultaneously;
In addition, the present invention also aims to, the DC/DC converter and the Switching Power Supply that adopt this controlled resonant converter are provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of controlled resonant converter, comprise resonant circuit and main transformer, the former limit winding of the output of described resonant circuit and described main transformer is coupled, and it is characterized in that, affiliated resonant circuit comprises the double winding inductance unit at the winding two ends, former limit that are serially connected in respectively described main transformer;
Preferably, described double winding inductance unit is the integrated inductor that two groups of coils consist of;
Described double winding inductance unit is two groups of coils that act on a closed magnetic circuit;
Described double winding inductance unit is two groups of integrated inductors that wire circle is identical;
Described double winding inductance unit is the integrated inductor that two groups of antiphases connect;
Described resonant circuit is the LLC topology;
A kind of DC/DC converter comprises switching circuit and controlled resonant converter, and the output of described switching circuit and the input of described controlled resonant converter are coupled, and described controlled resonant converter is aforesaid controlled resonant converter;
The output of described switching circuit and the input of described controlled resonant converter are coupled, and its described controlled resonant converter is aforesaid controlled resonant converter;
Described DC/DC converter also comprises and is serially connected in resonant inductance between described controlled resonant converter and the described switching circuit;
Preferably, described switching circuit is the full-bridge chopper;
A kind of Switching Power Supply comprises exchanging input module, converter and direct current output module that it is characterized in that, described converter is foregoing DC/DC converter.
The technique effect that the present invention is useful is:
Arrange respectively two groups of antiphase windings of double winding inductance unit at the winding two ends, former limit of main transformer, than the traditional design scheme, the present invention will be arranged in the resonant inductance of the former limit of main transformer winding one end, become two windings, the number of turns is identical, antiphase connects, act on a closed magnetic circuit integrated inductor, be distributed in the inductance at former limit winding two ends; Because the magnetic coupling interaction of two windings, in the electronic switch down periods, the dump energy Io of its main transformer and resonant inductance, homenergic ground is two and half brachium pontis capacitor C 1C2 and C3C4 release to the left and right, Io1 equals Io2 all the time, be not subjected to the branch current Io3 of distributed capacitance Cp1/Cp2 and the interference of Io4, consequently, about two and half brachium pontis simultaneously no-voltage is open-minded.
Description of drawings:
Fig. 1 is the circuit theory diagrams of traditional LLC controlled resonant converter;
Fig. 2 is the equivalent electric circuit of traditional LLC controlled resonant converter electronic switch down periods;
Fig. 3 is the circuit theory diagrams of the LLC resonant circuit of the embodiment of the invention one;
Fig. 4 is the circuit theory diagrams of the LLC resonant circuit of the embodiment of the invention two;
Fig. 5 is the circuit theory diagrams of the LLC resonant circuit of the embodiment of the invention three;
Fig. 6 is the equivalent electric circuit of the LLC resonant circuit of the embodiment of the invention one in the electronic switch down periods;
Fig. 7 is the equivalent electric circuit of the LLC resonant circuit of the embodiment of the invention two in the electronic switch down periods;
Fig. 8 is the equivalent electric circuit of the LLC resonant circuit of the embodiment of the invention three in the electronic switch down periods.
Embodiment:
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[embodiment one]
Referring to Fig. 3 and Fig. 6, the DC/DC converter comprises switching circuit, controlled resonant converter and main transformer T1.Switching circuit is the full-bridge chopper, left half brachium pontis of this chopper is composed in series by switching tube Q1 and switching tube Q2, right half brachium pontis is composed in series by Q3 and Q4, C1/C2/C3/C4 waits capacity, and be far longer than the parasitic capacitance Cce of electronic switch Q1, Q2, Q3, Q4, the input termination direct voltage source E of full-bridge chopper.Output terminals A/the B of described chopper connects the input of controlled resonant converter, and direct current is chopped into ac square wave and exports controlled resonant converter to.Controlled resonant converter comprises resonant circuit and main transformer, resonant circuit adopts the LLC topology, comprise double winding inductance unit Lr and resonant capacitance Cr, two groups of lead-in wires of the positive and negative phase place in the right side of double winding inductance unit, be connected with the former limit of main transformer windings in series with resonance capacitor C r respectively, consist of resonant tank, the positive and negative phase lead in the left side of double winding inductance unit, connect respectively chopper about two and half brachium pontis mid point A/B.Switching circuit is the full-bridge chopper of the present embodiment, also can adopt the combined full-bridge three-level chopper.
Than the traditional design scheme, the resonant inductance that originally is arranged in the former limit of main transformer winding one end is substituted by a double winding inductance unit that is distributed in winding two ends, former limit, under equal the requirement, the resonant inductance of former limit winding one end of main transformer will be arranged in, two windings have been become, same number of turns, antiphase connects, act on a closed magnetic circuit integrated inductor, be distributed in the inductance at winding two ends, former limit, because two antiphases of double winding inductance unit, the magnetic coupling interaction of same number of turns winding has been isolated the impact that the parasitic electrical quantity of main transformer discharges and recharges electronic switch shunt capacitance C1C2 and C3C4; Its equivalent electric circuit Fig. 6 explanation, in the electronic switch down periods, the dump energy Io of its main transformer and resonant inductance, by to the left and right two and half brachium pontis mid point capacitor C 1C2 and the release of C3C4 homenergic of double winding inductance unit, Io1 equals Io2 all the time, be not subjected to the branch current Io3 of distributed capacitance Cp1/Cp2 and the interference of Io4, consequently, about two and half brachium pontis simultaneously no-voltage is open-minded.
[embodiment two]
Referring to Fig. 4 and Fig. 7, the difference of embodiment two and embodiment one is, the positive and negative phase lead in the left side of double winding inductance unit, connect respectively chopper about two and half brachium pontis mid point A/B, two groups of lead-in wires of the positive and negative phase place in the right side of double winding inductance unit connect respectively resonant inductance Lr1 and resonance capacitor C r, be connected with the former limit of main transformer windings in series again, consist of resonant tank, adopt the advantage of this resonant tank to be, simplify the manufacturing process of double winding inductance unit; Its equivalent electric circuit Fig. 7 explanation, in the electronic switch down periods, the dump energy Io of its main transformer T1 and resonance inductance L r1, because the effect of double winding inductance unit, two and half brachium pontis mid point capacitor C 1C2 and C3C4 homenergic discharge to the left and right, and Io1 equals Io2 all the time, is not subjected to the branch current Io3 of distributed capacitance Cp1/Cp2 and the interference of Io4, consequently, no-voltage is open-minded simultaneously for two and half brachium pontis about.
[embodiment three]
Referring to Fig. 5 and Fig. 8, the difference of embodiment three and embodiment one is, the positive and negative phase lead in the left side of double winding inductance unit, respectively by resonant inductance Lr1 be connected with Lr2 chopper about two and half brachium pontis mid point A/B, two groups of lead-in wires of the positive and negative phase place in the right side of double winding inductance unit, be connected with the former limit of main transformer windings in series with resonance capacitor C r respectively, consist of resonant tank, adopt the advantage of this resonant tank to be, simplify double winding inductance unit manufacturing process, and Lr1 and Lr2 can be asymmetric; Equivalent electric circuit Fig. 8 explanation, in the electronic switch down periods, the dump energy Io of its main transformer T1 and resonance inductance L r1 and Lr2, because the effect of double winding inductance unit, by resonant inductance Lr1 and respectively to the left and right two and half brachium pontis mid point capacitor C 1C2 and C3C4 homenergic release of Lr2, Io1 equals Io2 all the time, is not subjected to the branch current Io3 of distributed capacitance Cp1/Cp2 and the interference of Io4, consequently, no-voltage is open-minded simultaneously for two and half brachium pontis about.
The present invention also provides a kind of Switching Power Supply, and described Switching Power Supply comprises the interchange input module that connects successively, above-mentioned DC/DC converter and direct current output module.Exchange input module alternating current is carried out converting direct current to after ac filter, the rectification, undertaken exporting the direct current output module to after the DC/DC conversion by the DC/DC converter, the direct current output module carries out providing final dc signal behind the direct current rectifying and wave-filtering.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.Those of ordinary skill in the art is reading on the basis of specification of the present invention and can make amendment to the technical scheme that each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. controlled resonant converter, comprise resonant circuit and main transformer, the former limit winding of the output of described resonant circuit and described main transformer is coupled, and it is characterized in that, described resonant circuit comprises the double winding inductance unit at the winding two ends, former limit that are serially connected in respectively described main transformer.
2. controlled resonant converter as claimed in claim 1 is characterized in that: described double winding inductance unit is the integrated inductor that two groups of coils consist of.
3. controlled resonant converter as claimed in claim 1 is characterized in that, described double winding inductance unit is two groups of coils that act on a closed magnetic circuit.
4. controlled resonant converter as claimed in claim 1 is characterized in that, described double winding inductance unit is two groups of integrated inductors that wire circle is identical.
5. controlled resonant converter as claimed in claim 1 is characterized in that: described double winding inductance unit be two groups of antiphases connect integrated inductor.
6. such as the described controlled resonant converter of claim 1 to 5 any one, it is characterized in that: described resonant circuit is the LLC topology.
7. a DC/DC converter comprises switching circuit and controlled resonant converter, and the output of described switching circuit and the input of described controlled resonant converter are coupled, and it is characterized in that: described controlled resonant converter is described controlled resonant converter one of according to claim 1-5.
8. DC/DC converter as claimed in claim 7, it is characterized in that: described switching circuit is the full-bridge chopper.
9. a Switching Power Supply comprises exchanging input module, converter and direct current output module, and it is characterized in that, described converter is DC/DC converter according to claim 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335489.3A CN103368404B (en) | 2013-08-02 | 2013-08-02 | A kind of integrated inductor controlled resonant converter |
| PCT/CN2014/076822 WO2015014142A1 (en) | 2013-08-02 | 2014-05-06 | Integrated inductor resonant converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335489.3A CN103368404B (en) | 2013-08-02 | 2013-08-02 | A kind of integrated inductor controlled resonant converter |
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| Publication Number | Publication Date |
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| CN103368404A true CN103368404A (en) | 2013-10-23 |
| CN103368404B CN103368404B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310335489.3A Active CN103368404B (en) | 2013-08-02 | 2013-08-02 | A kind of integrated inductor controlled resonant converter |
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| CN (1) | CN103368404B (en) |
| WO (1) | WO2015014142A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997217A (en) * | 2014-06-09 | 2014-08-20 | 西安电子科技大学 | Fixed-frequency series resonant converter based on flat inductor |
| CN104333247A (en) * | 2014-10-13 | 2015-02-04 | 华南理工大学 | Cascaded multilevel single-phase inverter and cascaded multilevel three-phase inverter adopting novel three-terminal switching networks |
| WO2015014142A1 (en) * | 2013-08-02 | 2015-02-05 | Tao Shunzhu | Integrated inductor resonant converter |
| WO2016160349A1 (en) * | 2014-03-31 | 2016-10-06 | Evatran Group, Inc. | Inductive power transfer system for electric vehicles |
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| WO2002049197A2 (en) * | 2000-12-14 | 2002-06-20 | Otto Junker Gmbh | Method for supplying an inductive load with soft-switching inverters which are connected in parallel |
| CN101359872A (en) * | 2007-08-02 | 2009-02-04 | 珠海赛比特电气设备有限公司 | Auxiliary power source for combination switch |
| CN101621253A (en) * | 2008-06-30 | 2010-01-06 | 艾默生网络能源系统北美公司 | Resonant convertor, DC/DC convertor and switch power supply |
| CN101630913A (en) * | 2009-08-14 | 2010-01-20 | 艾默生网络能源有限公司 | Resonant converter |
| CN201846235U (en) * | 2010-09-14 | 2011-05-25 | 艾默生网络能源系统北美公司 | Power conversion system |
| CN102158096A (en) * | 2011-05-11 | 2011-08-17 | 南京博兰得电子科技有限公司 | Non-isolated resonant converter |
| CN102857084A (en) * | 2012-09-28 | 2013-01-02 | 北京京仪绿能电力系统工程有限公司 | Circuit and method for restraining non-insulation type inverter common mode leakage current |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011139587A (en) * | 2009-12-28 | 2011-07-14 | Ricoh Co Ltd | Multi-current resonant converter and image forming apparatus |
| CN103368404B (en) * | 2013-08-02 | 2016-12-28 | 陶顺祝 | A kind of integrated inductor controlled resonant converter |
-
2013
- 2013-08-02 CN CN201310335489.3A patent/CN103368404B/en active Active
-
2014
- 2014-05-06 WO PCT/CN2014/076822 patent/WO2015014142A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0630559A (en) * | 1992-07-07 | 1994-02-04 | Japan Storage Battery Co Ltd | Resonance type switching power source |
| WO2002049197A2 (en) * | 2000-12-14 | 2002-06-20 | Otto Junker Gmbh | Method for supplying an inductive load with soft-switching inverters which are connected in parallel |
| CN101359872A (en) * | 2007-08-02 | 2009-02-04 | 珠海赛比特电气设备有限公司 | Auxiliary power source for combination switch |
| CN101621253A (en) * | 2008-06-30 | 2010-01-06 | 艾默生网络能源系统北美公司 | Resonant convertor, DC/DC convertor and switch power supply |
| CN101630913A (en) * | 2009-08-14 | 2010-01-20 | 艾默生网络能源有限公司 | Resonant converter |
| CN201846235U (en) * | 2010-09-14 | 2011-05-25 | 艾默生网络能源系统北美公司 | Power conversion system |
| CN102158096A (en) * | 2011-05-11 | 2011-08-17 | 南京博兰得电子科技有限公司 | Non-isolated resonant converter |
| CN102857084A (en) * | 2012-09-28 | 2013-01-02 | 北京京仪绿能电力系统工程有限公司 | Circuit and method for restraining non-insulation type inverter common mode leakage current |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014142A1 (en) * | 2013-08-02 | 2015-02-05 | Tao Shunzhu | Integrated inductor resonant converter |
| WO2016160349A1 (en) * | 2014-03-31 | 2016-10-06 | Evatran Group, Inc. | Inductive power transfer system for electric vehicles |
| CN103997217A (en) * | 2014-06-09 | 2014-08-20 | 西安电子科技大学 | Fixed-frequency series resonant converter based on flat inductor |
| CN104333247A (en) * | 2014-10-13 | 2015-02-04 | 华南理工大学 | Cascaded multilevel single-phase inverter and cascaded multilevel three-phase inverter adopting novel three-terminal switching networks |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015014142A1 (en) | 2015-02-05 |
| CN103368404B (en) | 2016-12-28 |
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