CN201008125Y - Active clamp magnetic integrated transducer - Google Patents
Active clamp magnetic integrated transducer Download PDFInfo
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- CN201008125Y CN201008125Y CNU2007200332290U CN200720033229U CN201008125Y CN 201008125 Y CN201008125 Y CN 201008125Y CN U2007200332290 U CNU2007200332290 U CN U2007200332290U CN 200720033229 U CN200720033229 U CN 200720033229U CN 201008125 Y CN201008125 Y CN 201008125Y
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 97
- 238000004804 winding Methods 0.000 claims abstract description 109
- 230000001360 synchronised effect Effects 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 230000004907 flux Effects 0.000 abstract description 13
- 230000035939 shock Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000010349 pulsation Effects 0.000 description 8
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- UXUFTKZYJYGMGO-CMCWBKRRSA-N (2s,3s,4r,5r)-5-[6-amino-2-[2-[4-[3-(2-aminoethylamino)-3-oxopropyl]phenyl]ethylamino]purin-9-yl]-n-ethyl-3,4-dihydroxyoxolane-2-carboxamide Chemical compound O[C@@H]1[C@H](O)[C@@H](C(=O)NCC)O[C@H]1N1C2=NC(NCCC=3C=CC(CCC(=O)NCCN)=CC=3)=NC(N)=C2N=C1 UXUFTKZYJYGMGO-CMCWBKRRSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
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Abstract
The utility model relates to an active clamp normal shock magnet integrated inverter, which belongs to a direct current inverter. The direct current inverter comprises a direct current power (1), an active clamp normal shock inverter edge circuit (2) and a secondary edge rectification and capacitance filtering circuit (4). The utility model is characterized in that the utility model also comprises an integrated magnetic part (3) which is integrated with the transformer and the output filtering inductance of a traditional inverter transformer, the transformer winding and the filter inductance winding linkage alternation magnetic flux are positively coupled by edge winding (Ns) of the integrated magnetic part (3) being connected with the cognominal end of the filter inductance winding (Nl), a gas clearance is arranged in each magnetic terminal of integrated magnetic part to realize output current zero wave when dutyfactor is 0.5. The utility model is capable of decreasing magnetic part size and loss, realizes smallest output wave and original switch tube voltage, and improves power density of the inverter, and changes efficiency and output active performance. The utility model can be employed in direct current transferring occasion with high power density, high efficiency and low output wave.
Description
One, technical field
Active clamp magnetic integrated converter of the present utility model belongs to the DC converter of transformation of electrical energy device.
Two, background technology
Active Clamped Forward Converters is because of it has that circuit topology is simple, due to voltage spikes is little, the two-way magnetization of transformer, duty ratio can be greater than 0.5, can realize that good characteristic such as zero voltage switch has obtained using widely in the DC converting occasion of middle low power.Because it adopts the monofocal rectification circuit, compares with double-end type converters such as half-bridge, full-bridges, has the bigger problem of inductive current pulsation.In order to guarantee the output voltage quality, generally can increase filter inductance and filter capacitor, will certainly increase like this converter volume weight, be unfavorable for improving power density.And high power density has become one of important indicator of converter, for this reason, need and reduce two aspects of loss from the overall dimension that reduces components and parts and start with and improved.Along with developing rapidly of semiconductor power device encapsulation technology, magnetic element becomes one of principal element of restriction inverter power density raising.Though high frequencyization is the effective means that reduces the magnetic element volume, the rapid increase of thing followed magnetic spare and semiconductor device loss has limited the raising of power density again.Therefore, integrated magnetic becomes one of effective means of further raising inverter power density.
Ed Bloom, " Core selection for ﹠amp; Design aspects of an integrated-magneticforward converter "; in Proc.IEEE APEC 1986; pp.141-150 is at winding magnetic reset positive activation type converter; disclose a kind of integrated magnetics scheme, can not improve the output current pulsation but this scheme can only reduce magnetic spare volume; The United States Patent (USP) Isolated voltage regulator with one corestructure U.S6 of Delta company application, 853, but 568 circuit structures at the multiple application integration magnetic spare of high pressure input VRM proposition, comprising crisscross parallel positive activation type converter, with volume and weight, the reducer structure that reduces converter.This integrated magnetics of a patent simple declaration is that transformer is mutually integrated with inductance, and the concrete connected mode that does not provide each winding comprises the relation of each winding end of the same name, does not more utilize integrated magnetics to reduce output current ripple.Gordon Bloom, Rudy Severns, " The generalized use of integrated magnetics and zero-ripple techniques inswitchmode power converters ", in Proc.IEEE PESC 1984, pp.15-33 disclose a kind of general method that reduces current pulsation---promptly realize by the structure coupling inductance.Though take this method can reduce output current pulsation, need additional circuit, and can't transformer and inductance is integrated and reduce magnetic spare volume.
Three, utility model content
At the big shortcoming of Active Clamped Forward Converters output current ripple, the utility model provides the magnetic Integrated Solution of a kind of transformer and inductance, not only can reduce magnetic spare volume, simultaneously can allow converter in the voltage stress that has minimum former limit power tube, realize minimizing of output current ripple.Help improving output quality, conversion efficiency, the power density of active clamp positive activation type converter, and can improve its output dynamic property.
Active clamp normal shock magnetic integrated converter of the present utility model, comprise DC power supply, active clamping forward exciting converter former limit circuit and secondary rectification and capacitor filter, it is characterized in that also comprising transformer in the active clamping forward exciting converter and output inductor are integrated integrated magnetics, by the magnetic resistance setting that appropriate winding connects and optimizes, realize that magnetic spare volume reduces, output ripple minimizes and minimum former limit switch tube voltage stress.Described integrated magnetics comprises unshakable in one's determination and former limit winding N
p, secondary winding N
sWith filter inductance winding N
LIron core has the magnetic post that is not less than three, former limit winding N
p, secondary winding N
sOn same magnetic post, filter inductance winding N
LOn other magnetic post; By secondary winding N with integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other and to make the alternating flux forward coupling of Transformer Winding and filter inductance winding linkage, and air gap is set at each magnetic post of integrated magnetics, make magnetic resistance satisfy certain optimization relation, be to realize the zero ripple of output current at 0.5 o'clock in duty ratio.Thus, guarantee that active reed position forward converter not only has the voltage stress of minimum former limit power tube, also have minimized output current pulsation, thereby obtain optimization active clamping forward exciting converter.Integrated magnetics can adopt the iron core of independent magnetic circuit number greater than 2 multiple shape; Core material can be selected multiple ferromagnetic materials such as ferrite, crystallite for use; The magnetic post at winding place can change flexibly: center pillar or side column etc.; Winding can adopt plane winding and takeup type windings such as multi-layer PCB winding, the folding winding of copper sheet.The annexation of winding has two kinds: the positive activation type converter is former limit winding N when the secondary through-put power
pElectric current flow into end points and secondary winding N
sWith filter inductance winding N
LThe end of the same name point that links to each other be end of the same name or positive activation type converter former limit winding N when the secondary through-put power
pElectric current flow into end points and secondary winding N
sWith filter inductance winding N
LThe end of the same name point that links to each other be the different name end.Secondary rectification and capacitor filter can adopt diode rectifier circuit, also can adopt circuit of synchronous rectification.The positive activation type converter is former limit winding N when the secondary through-put power
pElectric current flow into point and link to each other main power tube Q with the anode of DC power supply
1With active-clamp power tube Q
2Common point and the former limit winding N of integrated magnetics
pThe another one end points link to each other clamping capacitance C
1An end and power tube Q
2Drain electrode link to each other, the other end is received the anode or the negative terminal of DC power supply.Secondary winding N when integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other point and former limit winding N
pElectric current when flowing into point for end of the same name, the secondary winding N of integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other point and diode D
R1Negative electrode (or synchronous rectifier S
R1Drain electrode) link to each other, secondary winding N
sAn other end points and diode D
R2Negative electrode (or synchronous rectifier S
R2Drain electrode) link to each other, filter inductance winding N
LAn other end points and output capacitance C
cAnode link to each other, two rectifier diode D
R1And D
R2Anode (or two synchronous rectifier S
R1And S
R2Source electrode) with output capacitance C
oNegative terminal link to each other; Secondary winding N when integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other point and former limit winding N
pElectric current when flowing into point for the different name end, the secondary winding N of integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other point and diode D
R2Anode (or synchronous rectifier S
R2Source electrode) link to each other, secondary winding N
sAn other end points and diode D
R1Anode (or synchronous rectifier S
R1Source electrode) link to each other, filter inductance winding N
LAn other end points and output capacitance C
oNegative terminal link to each other, two rectifier diode D
R1And D
R2Negative electrode (or two synchronous rectifier S
R1And S
R2Drain electrode) with output capacitance C
oAnode link to each other.
The utility model major technique characteristics and novelty compared with prior art is the secondary winding N of integrated magnetics
sWith filter inductance winding N
LEnd of the same name link to each other, make the magnetic flux of Transformer Winding place magnetic post and the magnetic flux of filter inductance winding place magnetic post on other magnetic post, cut down mutually, help reducing alternating flux and maximum magnetic flux on other magnetic post, thereby can reduce loss of magnetic spare and magnetic spare volume.Because in the active clamping forward exciting converter, the relative polarity of Transformer Winding and filter inductance winding voltage is constant, so this connected mode also makes the alternating flux of Transformer Winding linkage and the alternating flux forward of filter inductance winding linkage be coupled.Because the integrated voltage that does not change Transformer Winding and filter inductance winding of magnetic, so magnetic is integrated itself can not change the alternating flux of filter inductance winding linkage.Can know according to the additivity principle, the alternating flux of the integrated back of magnetic filter inductance winding linkage is the stack behind Transformer Winding and the filter inductance winding independent action, because both alternating flux forward couplings, therefore help reducing the alternating flux that the current pulsation by the filter inductance winding produces, thereby the current pulsation that reduces the filter inductance winding is output current pulsation, and and then can improve the output quality and the conversion efficiency of converter.Regulate the magnetic resistance of each magnetic post of magnetic spare, can adjust the stiffness of coupling of the alternating flux of Transformer Winding and filter inductance winding linkage, thereby change output current ripple.For active clamp positive activation type converter, allow the converter symmetry be operated in duty ratio about 0.5 usually, thereby obtain the voltage stress of minimum former limit switching tube.In order to optimize the overall performance of active reed position forward converter, by optimizing the magnetic resistance setting of magnetic spare, allowing converter pulse at duty ratio 0.5 output current is zero, just can obtain minimum output current ripple, make converter in the voltage stress that has minimum former limit power tube, realize minimizing of output current ripple.
The invention has the beneficial effects as follows to reduce the loss of magnetic spare, volume and output current pulsation, thereby improve inverter power density, conversion efficiency, output quality and output dynamic property.
Four, description of drawings
Accompanying drawing 1 ~ accompanying drawing 2 is 2 kinds of execution mode schematic diagrames of the integrated magnetics of the employing EE iron core that the present invention relates to.
Accompanying drawing 3 is the integrated magnetics of the employing Fig. 1 that the present invention relates to and the active clamp forward formula magnetic integrated converter schematic diagram of diode rectifier circuit.
Accompanying drawing 4 is the integrated magnetics of the employing Fig. 1 that the present invention relates to and the active clamp forward formula magnetic integrated converter schematic diagram of circuit of synchronous rectification.
Accompanying drawing 5 is the integrated magnetics of the employing Fig. 2 that the present invention relates to and the active clamp forward formula magnetic integrated converter schematic diagram of diode rectifier circuit.
Accompanying drawing 6 is the integrated magnetics of the employing Fig. 2 that the present invention relates to and the active clamp forward formula magnetic integrated converter schematic diagram of circuit of synchronous rectification.
Main designation in the above-mentioned accompanying drawing: V
In-DC power supply voltage; Q
1-main power tube; Q
2-active reed position power tube; C
1-clamping capacitance; D
R1, D
R2-rectifier diode; S
R1, S
R2-synchronous rectifier; C
o-output filter capacitor; The R-load; N
p-former limit winding; N
s-secondary winding; N
L-filter inductance winding; The electric current of a-positive activation type converter former limit winding when the secondary through-put power flows into point; The electric current of b-positive activation type converter former limit winding when the secondary through-put power flows out point; The end tie point of the same name of c-secondary winding and filter inductance winding; The disjunct end of d-secondary winding and filter inductance winding; The disjunct end of e-filter inductance winding and secondary winding.
Five, embodiment
Adopt the execution mode example one of the integrated magnetics of EE iron core, with reference to accompanying drawing 1.Former limit winding N
p, the secondary winding is placed on lateral column unshakable in one's determination, filter inductance winding N
LBe placed on another lateral column unshakable in one's determination, a point and the c point of integrated magnetics are end of the same name.Iron core is not limited to the EE type.
Adopt the execution mode example two of the integrated magnetics of EE iron core, with reference to accompanying drawing 2.Former limit winding N
p, the secondary winding is placed on lateral column unshakable in one's determination, filter inductance winding N
LBe placed on another lateral column unshakable in one's determination, a point and the c point of integrated magnetics are the different name end.Iron core is not limited to the EE type.
Embodiments of the invention one with reference to accompanying drawing 3, are to adopt the integrated magnetics of Fig. 1 and the active clamp forward formula magnetic integrated converter schematic diagram of diode rectifier circuit.Former limit winding N
pThe a point link to each other main power tube Q with the anode of DC power supply 1
1With active-clamp power tube Q
2Common point and the former limit winding N of integrated magnetics 3
pThe b point link to each other clamping capacitance C
1An end and active-clamp power tube Q
2Source electrode link to each other, the other end is received the anode or the negative terminal of DC power supply 1.The c point and the rectifier diode D of integrated magnetics 3
R1Negative electrode link to each other, d point and rectifier diode D
R2Negative electrode link to each other, e point and output capacitance C
oAnode link to each other two rectifier diode D
R1And D
R2Anode and output capacitance C
oNegative terminal link to each other.
Embodiments of the invention two with reference to accompanying drawing 4, are to adopt the integrated magnetics of Fig. 1 and the active clamp forward formula magnetic integrated converter schematic diagram of circuit of synchronous rectification.Former limit winding N
pThe a point link to each other main power tube Q with the anode of DC power supply 1
1With active-clamp power tube Q
2Common point and the former limit winding N of integrated magnetics 3
pThe b point link to each other clamping capacitance C
1An end and active-clamp power tube Q
2Source electrode link to each other, the other end is received the anode or the negative terminal of DC power supply 1.The c point and the synchronous rectifier S of integrated magnetics 3
R1Drain electrode link to each other, d point and synchronous rectifier S
R2Drain electrode link to each other, e point and output capacitance C
oAnode link to each other two synchronous rectifier S
R1And S
R2Source electrode and output capacitance C
oNegative terminal link to each other.
Embodiments of the invention three with reference to accompanying drawing 5, are to adopt the integrated magnetics of Fig. 2 and the active clamp forward formula magnetic integrated converter schematic diagram of diode rectifier circuit.Former limit winding N
pThe a point link to each other main power tube Q with the anode of DC power supply 1
1With active-clamp power tube Q
2Common point and the former limit winding N of integrated magnetics 3
pThe b point link to each other clamping capacitance C
1An end and active reed position power tube Q
2Source electrode link to each other, the other end is received the anode or the negative terminal of DC power supply 1.The c point and the rectifier diode D of integrated magnetics 3
R2Anode link to each other, d point and rectifier diode D
R1Anode link to each other, e point and output capacitance C
oNegative terminal link to each other two rectifier diode D
R1And D
R2Negative electrode and output capacitance C
oAnode link to each other.
Embodiments of the invention four with reference to accompanying drawing 6, are to adopt the integrated magnetics of Fig. 2 and the active clamp forward formula magnetic integrated converter schematic diagram of circuit of synchronous rectification.Former limit winding N
pThe a point link to each other main power tube Q with the anode of DC power supply 1
1With active-clamp power tube Q
2Common point and the former limit winding N of integrated magnetics 3
pThe b point link to each other clamping capacitance C
1An end and active-clamp power tube Q
2Source electrode link to each other, the other end is received the anode or the negative terminal of DC power supply 1.The c point and the synchronous rectifier S of integrated magnetics 3
R2Source electrode link to each other, d point and synchronous rectifier S
R1Source electrode link to each other, e point and output capacitance C
oNegative terminal link to each other two synchronous rectifier S
R1And S
R2Drain electrode and output capacitance C
oAnode link to each other.
Claims (1)
1. an active clamp forward magnetic integrated converter comprises DC power supply (1), the former limit of active clamping forward exciting converter circuit (2) and secondary rectification and capacitor filter (4), and wherein the former limit of active clamping forward exciting converter circuit (2) is by main power tube (Q
1) drain electrode and active-clamp power tube (Q
2) source electrode link to each other active-clamp power tube (Q
2) drain electrode series connection clamping capacitance (C
1) connect the positive pole of DC power supply (1), main power tube (Q
1) the source electrode negative pole that connects DC power supply (1) form; Secondary rectification and capacitor filter (4) are diode rectifier circuit or are circuit of synchronous rectification that concrete composition is: by two rectifier diode (D
R1, D
R2) anode link to each other filter capacitor (C
o) negative terminal meet two rectifier diode (D
R1, D
R2) the anode tie point on and connect " " diode rectifier circuit formed; Perhaps by two synchronous rectifier (S
R1, S
R2) source electrode link to each other filter capacitor (C
o) negative terminal meet two synchronous rectifier (S
R1, S
R2) the source electrode tie point on and connect " " circuit of synchronous rectification formed; Perhaps two rectifier diode (D
R1, D
R2) negative electrode link to each other filter capacitor (C
o) two rectifier diode (D of positive termination
R1, D
R2) cathode connection on the diode rectifier circuit formed; Perhaps by two synchronous rectifier (S
R1, S
R2) drain electrode link to each other filter capacitor (C
o) two synchronous rectifier (S of positive termination
R1, S
R2) the drain electrode tie point on the circuit of synchronous rectification formed, it is characterized in that also comprising transformer in the active clamping forward exciting converter and output inductor are integrated integrated magnetics (3) that this integrated magnetics (3) comprises unshakable in one's determination and former limit winding (N
p), secondary winding (N
s) and filter inductance winding (N
L); The magnetic post that is not less than three wherein unshakable in one's determination, former limit winding and secondary winding (N
s) all on the same magnetic post of iron core, filter inductance winding (N
L) on the other magnetic post of iron core; Converter is former limit winding (N when the secondary transmitted power
p) electric current flow into end points and be connected in DC power supply (1) positive pole, an other end is connected in main power tube (Q
1) and active-clamp power tube (Q
2) series connection point, secondary winding (N
s) and filter inductance winding (N
L) annexation have two kinds: first secondary winding (N
s) and filter inductance winding (N
L) point and converter former limit winding (N when the secondary transmitted power link to each other
p) electric current flow into point and be end of the same name, be connected in the first rectifying tube (D
R1) negative electrode or be connected in the first synchronous rectifier (S
R1) drain electrode, secondary winding (N
s) the other end be connected in the second rectifying tube (D
R2) negative electrode or be connected in the second synchronous rectifier (S
R2) drain electrode, filter inductance winding (N
L) the other end be connected in filter capacitor (C
o) anode; Its two secondary winding (N
s) and filter inductance winding (N
L) point and converter former limit winding (N when the secondary transmitted power link to each other
p) electric current flow into point and be the different name end, be connected in the second rectifying tube (D
R2) anode or be connected in the second synchronous rectifier (S
R2) source electrode, secondary winding (N
s) an other end be connected in the first rectifying tube (D
R1) anode or be connected in the first synchronous rectifier (S
Rl) source electrode, filter inductance winding (N
L) an other end be connected in filter capacitor (C
o) negative terminal and connect " ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200332290U CN201008125Y (en) | 2007-01-09 | 2007-01-09 | Active clamp magnetic integrated transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200332290U CN201008125Y (en) | 2007-01-09 | 2007-01-09 | Active clamp magnetic integrated transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008125Y true CN201008125Y (en) | 2008-01-16 |
Family
ID=39004074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200332290U Expired - Fee Related CN201008125Y (en) | 2007-01-09 | 2007-01-09 | Active clamp magnetic integrated transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008125Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951181A (en) * | 2010-01-19 | 2011-01-19 | 华为技术有限公司 | Integrated magnetic double-end converter |
| CN101325375B (en) * | 2008-04-02 | 2012-02-01 | 东莞益衡电子有限公司 | Bi-crystal positive-arousing active clamp switch power supply |
| CN103680888A (en) * | 2013-11-29 | 2014-03-26 | 西安交通大学苏州研究院 | Magnetic-integration three-phase filter transformer |
| CN104025217A (en) * | 2014-03-05 | 2014-09-03 | 深圳市欣锐特科技有限公司 | Magnetic core, integrated magnetic element, active clamp forward-flyback circuit and switch power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325375B (en) * | 2008-04-02 | 2012-02-01 | 东莞益衡电子有限公司 | Bi-crystal positive-arousing active clamp switch power supply |
| CN103762844B (en) * | 2008-09-19 | 2016-11-02 | 电力集成公司 | There is the anti exciting converter of forward converter reset clamp |
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| WO2011088777A1 (en) * | 2010-01-19 | 2011-07-28 | 华为技术有限公司 | Magnetic integration double-ended converter |
| CN101951181B (en) * | 2010-01-19 | 2014-02-19 | 华为技术有限公司 | Integrated magnetic double-end converter |
| CN103762853B (en) * | 2010-01-19 | 2017-01-25 | 华为技术有限公司 | Magnetic integrated double-end converter |
| CN103762853A (en) * | 2010-01-19 | 2014-04-30 | 华为技术有限公司 | Magnetic integrated double-end converter |
| US8848397B2 (en) | 2010-01-19 | 2014-09-30 | Huawei Technologies Co., Ltd. | Magnetic integration double-ended converter |
| CN101951181A (en) * | 2010-01-19 | 2011-01-19 | 华为技术有限公司 | Integrated magnetic double-end converter |
| CN103680888B (en) * | 2013-11-29 | 2016-05-04 | 西安交通大学苏州研究院 | The integrated three-phase filter transformer of a kind of magnetic |
| CN103680888A (en) * | 2013-11-29 | 2014-03-26 | 西安交通大学苏州研究院 | Magnetic-integration three-phase filter transformer |
| CN104025217A (en) * | 2014-03-05 | 2014-09-03 | 深圳市欣锐特科技有限公司 | Magnetic core, integrated magnetic element, active clamp forward-flyback circuit and switch power supply |
| CN104025217B (en) * | 2014-03-05 | 2017-05-10 | 深圳欣锐科技股份有限公司 | Magnetic core, integrated magnetic element, active clamp forward-flyback circuit and switch power supply |
| CN104851574A (en) * | 2015-05-15 | 2015-08-19 | 广州金升阳科技有限公司 | Magnetic element and switch power supply based on magnetic element |
| CN108599574A (en) * | 2018-04-26 | 2018-09-28 | 广州金升阳科技有限公司 | A kind of zero ripple converter of output |
| CN108599574B (en) * | 2018-04-26 | 2019-06-25 | 广州金升阳科技有限公司 | A kind of zero ripple converter of output |
| WO2019205740A1 (en) * | 2018-04-26 | 2019-10-31 | 广州金升阳科技有限公司 | Zero-output ripple converter |
| CN109067186A (en) * | 2018-09-14 | 2018-12-21 | 广州金升阳科技有限公司 | A kind of modified exports zero ripple converter and its control method |
| CN109067186B (en) * | 2018-09-14 | 2024-02-13 | 广州金升阳科技有限公司 | Improved output zero ripple converter and control method thereof |
| CN109286322A (en) * | 2018-09-21 | 2019-01-29 | 广州金升阳科技有限公司 | A kind of sampling feedback circuit and the power inverter using the circuit |
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