CN2385469Y - Power supply device for phase-shift resonance switch - Google Patents
Power supply device for phase-shift resonance switch Download PDFInfo
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- CN2385469Y CN2385469Y CN99218855.5U CN99218855U CN2385469Y CN 2385469 Y CN2385469 Y CN 2385469Y CN 99218855 U CN99218855 U CN 99218855U CN 2385469 Y CN2385469 Y CN 2385469Y
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- 230000010363 phase shift Effects 0.000 title description 2
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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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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Abstract
一种移相谐振型开关电源装置,设有原边嵌位二极管和倍流整流电感(L1、L2),避免了变压器副边的寄生振荡,从而无须输出二极管吸收电路,使电路效率达到最高,EMI大为降低,由于L1、L2与变压器次级并联,增加了轻载时的ZVS范围,使得电路更加实用、可靠、成本更低。由于原边做到了ZVS软开关,副边输出二极管上的尖峰被抑制,使得在元件的选择上更为有利,电路元件少、电路结构紧凑;无须任何吸收电路,即可获得极高的输出效率;电磁干扰小,满足EMC国际标准。
A phase-shifting resonant switching power supply device, which is provided with a primary side clamping diode and a current doubler rectifier inductor (L1, L2), which avoids the parasitic oscillation of the secondary side of the transformer, thereby eliminating the need for an output diode snubber circuit, and maximizing the circuit efficiency. EMI is greatly reduced. Since L1 and L2 are connected in parallel with the secondary side of the transformer, the ZVS range at light load is increased, making the circuit more practical, reliable and lower in cost. Because the primary side achieves ZVS soft switching, the peak on the output diode of the secondary side is suppressed, which makes the selection of components more favorable, with fewer circuit components and a compact circuit structure; without any absorption circuit, high output efficiency can be obtained ;Electromagnetic interference is small, meeting the international standard of EMC.
Description
The utility model relates to switch power technology, specifically, relates to full-bridge phase shifting zero voltage switch (ZVS) supply unit that a kind of former limit diode clamping (PDC), secondary doubly flow rectification (CDR).
Secondary doubly flows rectification (being called for short CDR down) though circuit early has the people to propose and is seen in report, but be not much accounted of always, mainly be used to the positive activation type circuit, its applicability to zero voltage switch pulse-width modulation (ZVS-PWM) circuit is not noted by the people always, so the research work on this direction is carried out seldom.More not relevant for discovery with combination of itself and former limit diode clamping and the excellent effect that obtains.And existing full-bridge ZVS resonance type switching power source exists that light-load efficiency is low, the transformer secondary output harmonic wave is big, thereby causes big etc. the shortcoming of secondary diode spike height, EMI.
The purpose of this utility model is, a kind of switching power unit is provided, can overcome big etc. the shortcoming of secondary diode spike height, the electromagnetic interference (EMI) that light-load efficiency is low, the transformer secondary output harmonic wave causes greatly of full-bridge ZVS (zero voltage switch) resonance type switching power source of prior art, in very wide loading range, realize high efficiency soft switch reliably with less element, simple structure.
The purpose of this utility model is to realize like this, construct a kind of phase-shifting resonance type switching power unit, comprise phase-shifting resonance converter unit 3 and phase shifting control and current-sharing unit 4, described phase-shifting resonance converter unit 3 comprises phase-shifting resonance switching diode SA-SD, described phase shifting control and current-sharing unit 4 are connected with the control end of described four phase-shifting resonance switching diode SA-SD, it is characterized in that, two input cross-over connections of described phase-shifting resonance converter unit 3 have former limit catching diode D1, D2, wherein the negative pole of diode D1 connect the input power supply positive pole and the positive pole of D1 connects the negative pole of diode D2, the positive pole of diode D2 connects the negative pole of input power supply, diode D1 positive pole, the D2 negative pole is connected with the elementary end of resonant inductance Lr one end transformer B, the resonant inductance Lr other end and SA, the link of SB joins, SC and SD link are connected to the elementary other end of transformer B by capacitor C 2, the secondary two ends of transformer B are connected to a rectifier diode D3 respectively, the positive pole of D4, diode D3, the negative pole of the D4 formation cathode output end that links together comprises also that the one end is attempted by the secondary two ends of transformer B respectively and its other end links together constitutes the output inductor L1 of cathode output end, L2.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, comprises in described phase shifting control and the current-sharing unit 4 that model is that current-sharing IC and the model of UC3907 is the phase shifting control IC of UC3879.
The phase-shifting resonance type switching power unit that provides according to the utility model, it is characterized in that, also comprise input electromagnetic interference filter unit 1 and power factor correction unit 2, the interchange of the input termination 85-260V scope of described input electromagnetic interference filter unit 1 and output is connected to the input of described power factor correction unit 2, described power factor correction unit 2 is used for the 65-265V exchange conversion is become stable 380V direct current, and its output is connected to the input of phase-shifting resonance converter unit 3.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, described output inductor L1, L2 can be altogether on iron cores.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, described four phase-shifting resonance switching diode SA-SD are that model is the MOSFET of IRF840.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, it is the diode of DSEC-30-02 that described output rectifier diode D3, D4 select model for use.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, it is the diode of BYV28-600 that described catching diode D1, D2 select model for use.
Phase-shifting resonance type switching power unit according to the utility model provides is characterized in that, described output inductor L1, L2 public one secondary model altogether are the magnetic core of MAGNETICS KOOL μ 77071.
According to the phase-shifting resonance type switching power unit that the utility model provides, it is characterized in that complete machine adopts the natural cooling mode to dispel the heat.
The utility model proposes a kind of phase-shifting resonance type switching power unit, three big technical characterictic: PDC (former limit diode clamping), CDR (secondary doubly flows rectification), ZVS (zero voltage switch) have been adopted, implement the switching power unit that the utility model provides, solve big etc. the shortcoming of secondary diode spike height, the EMI that light-load efficiency is low, the transformer secondary output harmonic wave causes greatly of traditional full-bridge ZVS resonance type switching power source effectively, and had the following advantages: 1) can in very wide loading range, realize soft switch; 2) output inductor little and be easy to integrated, output rectifier cell few, the circuit structure compactness; 3) need not any absorption circuit, can obtain high delivery efficiency; 4) EMI (electromagnetic interference) is little, is easy to satisfy the requirement of EMC (electromagnetic compatibility) international standard; 5) switching tube, rectifying tube stress are little, the circuit reliability height, and cost is low; 6) circuit form is simple, reliable, is easy to realize.
In conjunction with the accompanying drawings and embodiments, further specify characteristics of the present utility model, in the accompanying drawing:
Fig. 1 is the circuit block diagram of first embodiment of switching power unit of the present utility model;
Fig. 2 is the circuit theory diagrams of PDC-CDR-ZVS phase-shifting resonance converter in the circuit block diagram shown in Figure 1;
Fig. 3 is the circuit block diagram of another embodiment of the present utility model.
Fig. 4 is the circuit block diagram of the 3rd embodiment of the present utility model.
As shown in Figure 1, switching power unit of the present utility model is as a complete machine, it is input as the 380V direct current, be output as the output of adjustable 40V-59.5V constant current or constant voltage, this supply unit comprises input electromagnetic interference (EMI) filter unit 1, power factor correction (PFC) circuit unit 2, PDC-CDR-ZVS phase-shifting resonance converter 3 and phase shifting control and current-sharing unit 4, wherein import EMI filter unit 1 and be used to suppress radio frequency interference and conducted noise, pfc circuit unit 2 is used to carry out power factor correction, and phase shifting control and current-sharing unit 4 are used to provide the phase shift driving pulse and realize the intermodule current-sharing.Wherein, phase shifting control IC selects UC3879 for use, and current-sharing IC selects UC3907 for use.Complete machine adopts the natural cooling mode to dispel the heat.
In the switching power unit of the present utility model shown in Fig. 2 in the circuit theory diagrams of PDC-CDR-ZVS phase-shifting resonance converter unit, D1, D2 are former limit clamped (PDC) diode, its effect is that input is returned in the residue energy storage in the resonant inductance, can avoid the parasitic oscillation of transformer secondary so well, make on the output diode spike reach minimum, thereby need not absorb circuit by output diode, make circuit efficiency reach the highest.Simultaneously, because secondary and parasitic oscillation obtain good restraining, the EMI on whole power supply road is greatly reduced, the EMC index is easy to reach requirement.Inductance L 1 among Fig. 2 and L2 also are output inductors for doubly flowing rectification (CDR) inductance.Inductance L 1, L2 can be altogether on iron cores, because L1 and L2 go up electric current has only output current half, so compare the filter inductance volume of CDR littler (inductance value one regularly, the volume of inductance and electric current square be directly proportional) with traditional outputting inductance.What is more important, because L1, L2 are in parallel with transformer secondary output, the ZVS scope when having increased underloading greatly makes circuit practical more, reliable.Be not difficult to find out from figure, compare this circuit with the output full bridge rectifier and can save two diodes that compare with the output full-wave rectifying circuit, transformer device structure is more simple, because the no-output centre cap.
In Fig. 2 circuit, capacitor C 1 is used to suppress peak current, the high-frequency signal loop is provided, SA, SB, SC, SD are the phase-shifting resonance switches, capacitor C 2 is used to prevent that magnetic biasing from swashing, B is the switch step-down transformer, compared with prior art, characteristics are secondary no taps, and capacitor C3 is a filter capacitor, and D3-D4 is a rectifier diode, the utility model has reduced the requirement of withstand voltage to this diode, at work, diode D3 and D4 can scabble peak current, and provide resonant inductance Lr to go up the bleed off loop of resonant energy.
It can also be seen that from Fig. 2 the utility model also has the simple advantage of circuit form.With some other zero stream zero-voltage-switch (ZCZVS) power supply mutually this, the circuit form that the utility model adopts is much simple relatively, and with better function.Very wide for the ZVS scope in this circuit, the dependence to resonant parameter having avoided resembling among traditional ZVS need not complex mathematical be calculated, and design becomes more simple.
Another obvious benefit that the utility model brings is: because the soft switch of ZVS has been accomplished on former limit, spike on the secondary output diode good restraining of having got back, make and in the selection of switching tube and rectifying tube, become more favourable, we know, switching device withstand voltage high more, its cost will increase many more.After adopting the utility model, stresses of parts reduces greatly, can select low withstand voltage switching device, thereby reduce cost.On the other hand, the reduction of stresses of parts also makes overall efficiency be improved, and can bring the significantly lifting of whole aircraft reliability simultaneously.In addition, because the utility model will combine well with the ZVS phase-shifting resonance power supply and the current-doubling rectifier of diode clamping first, get and gone splendid circuit effect.
Use the large power supply that power supply product of the present utility model can be applicable to various low pressure such as communication primary power source, electric power operation power supply and military solid-state radar transmitter supply, big electric current.For example the utility model has been successfully applied among the communication primary power source FS-RU-4810, makes overall efficiency surpass for 90% (containing pfc circuit).
In second embodiment of the present utility model shown in Fig. 3, save power factor correction (PFC) circuit unit 2 in the switching power unit shown in Figure 1 and adopt common current rectifying and wave filtering circuit to replace, this embodiment is suitable in the lower power supply product of requirement.
In the 3rd embodiment of the present utility model shown in Fig. 4, input electromagnetic interference (EMI) filter unit 1 and power factor correction (PFC) circuit unit 2 in the switching power unit shown in Figure 1 have been saved, in the power supply product when present embodiment is suitable for the direct current input.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99218855.5U CN2385469Y (en) | 1999-08-04 | 1999-08-04 | Power supply device for phase-shift resonance switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99218855.5U CN2385469Y (en) | 1999-08-04 | 1999-08-04 | Power supply device for phase-shift resonance switch |
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| Publication Number | Publication Date |
|---|---|
| CN2385469Y true CN2385469Y (en) | 2000-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99218855.5U Expired - Fee Related CN2385469Y (en) | 1999-08-04 | 1999-08-04 | Power supply device for phase-shift resonance switch |
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| CN (1) | CN2385469Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553094C (en) * | 2004-04-26 | 2009-10-21 | 雅达电子国际有限公司 | Coupled inductor current doubler and power converter including the same |
| CN101841244A (en) * | 2009-03-20 | 2010-09-22 | 力博特公司 | Low output loss LLC resonant converter |
| CN101902860A (en) * | 2009-11-21 | 2010-12-01 | 英飞特电子（杭州）有限公司 | Multipath constant-current driving circuit |
| WO2011060701A1 (en) * | 2009-11-21 | 2011-05-26 | 英飞特电子（杭州）有限公司 | Multi-path constant current driving circuit |
| CN102257714A (en) * | 2008-12-22 | 2011-11-23 | Nxp股份有限公司 | Resonant converter |
| CN102405587A (en) * | 2010-05-04 | 2012-04-04 | 华为技术有限公司 | Dc/dc converter |
| CN103684024A (en) * | 2013-11-21 | 2014-03-26 | 浙江大学 | Inverter of current doubling differential output structure |
| CN104779805A (en) * | 2015-04-16 | 2015-07-15 | 陕西科技大学 | Phase-shifted full-bridge ZVS convertor with wide load range |
| CN105449999A (en) * | 2014-08-22 | 2016-03-30 | 中车大连电力牵引研发中心有限公司 | Light-rail train auxiliary power supply system |
| CN109560705A (en) * | 2017-09-26 | 2019-04-02 | 南京航空航天大学 | A kind of clamp diode adds capacitive soft switch full bridge converter and its control method |
| CN104333227B (en) * | 2002-04-29 | 2019-04-30 | 沃尔缇夫能源系统公司 | Power-supply system and equipment |
-
1999
- 1999-08-04 CN CN99218855.5U patent/CN2385469Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333227B (en) * | 2002-04-29 | 2019-04-30 | 沃尔缇夫能源系统公司 | Power-supply system and equipment |
| CN100553094C (en) * | 2004-04-26 | 2009-10-21 | 雅达电子国际有限公司 | Coupled inductor current doubler and power converter including the same |
| CN102257714A (en) * | 2008-12-22 | 2011-11-23 | Nxp股份有限公司 | Resonant converter |
| CN102257714B (en) * | 2008-12-22 | 2013-12-18 | Nxp股份有限公司 | Resonant converter |
| CN101841244A (en) * | 2009-03-20 | 2010-09-22 | 力博特公司 | Low output loss LLC resonant converter |
| CN101902860B (en) * | 2009-11-21 | 2013-01-16 | 英飞特电子（杭州）股份有限公司 | Multipath constant-current driving circuit |
| CN101902859B (en) * | 2009-11-21 | 2012-12-12 | 英飞特电子（杭州）股份有限公司 | Multi-path constant-current drive circuit |
| WO2011060701A1 (en) * | 2009-11-21 | 2011-05-26 | 英飞特电子（杭州）有限公司 | Multi-path constant current driving circuit |
| CN101902859A (en) * | 2009-11-21 | 2010-12-01 | 英飞特电子（杭州）有限公司 | Multi-path constant-current drive circuit |
| US8629664B2 (en) | 2009-11-21 | 2014-01-14 | Inventronics (Hangzhou), Inc. | Multi-path constant current driving circuit |
| US9155141B2 (en) | 2009-11-21 | 2015-10-06 | Inventronics (Hangzhou), Inc. | Multi-path constant current driving circuit |
| CN101902860A (en) * | 2009-11-21 | 2010-12-01 | 英飞特电子（杭州）有限公司 | Multipath constant-current driving circuit |
| CN102405587A (en) * | 2010-05-04 | 2012-04-04 | 华为技术有限公司 | Dc/dc converter |
| CN103684024A (en) * | 2013-11-21 | 2014-03-26 | 浙江大学 | Inverter of current doubling differential output structure |
| CN105449999A (en) * | 2014-08-22 | 2016-03-30 | 中车大连电力牵引研发中心有限公司 | Light-rail train auxiliary power supply system |
| CN104779805A (en) * | 2015-04-16 | 2015-07-15 | 陕西科技大学 | Phase-shifted full-bridge ZVS convertor with wide load range |
| CN109560705A (en) * | 2017-09-26 | 2019-04-02 | 南京航空航天大学 | A kind of clamp diode adds capacitive soft switch full bridge converter and its control method |
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| CF01 | Termination of patent right due to non-payment of annual fee |