CN100392968C - A high power factor DC power supply - Google Patents
A high power factor DC power supply Download PDFInfo
- Publication number
- CN100392968C CN100392968C CNB2003101219179A CN200310121917A CN100392968C CN 100392968 C CN100392968 C CN 100392968C CN B2003101219179 A CNB2003101219179 A CN B2003101219179A CN 200310121917 A CN200310121917 A CN 200310121917A CN 100392968 C CN100392968 C CN 100392968C
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- CN
- China
- Prior art keywords
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- diode
- rectifier bridge
- electric capacity
- main switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4258—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a regulated and galvanically isolated DC output voltage
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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)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to a single-stage high power factor DC power supply which is composed of a rectification silicon bridge and a DC voltage changer, wherein the DC voltage changer is composed of a high-frequency transformer, a switch tube, a capacitor, a quick diode and a diode. After a silicon bridge, the present invention is parallelly connected with a small capacitor, and primary coils of the transformer are connected with an output positive pole of the rectification silicon bridge by the quick diode at the primary pole of the supply source. The coils are also connected with the anode of the diode and are connected with a main switch pipe; the main switch pipe is connected with the negative pole connected to the rectification silicon bridge; the cathode of the diode is connected with the positive pole of the capacitor and is connected with an auxiliary switch pipe, and the negative pole of the capacitor is connected with the negative pole of the silicon bridge. The auxiliary switch pipe is also connected with the positive pole of the rectification silicon bridge, and a secondary rectification wave filtration line of the power supply.
Description
Affiliated technical field
The present invention relates to a kind of high-power factor DC power supply, particularly single-stage high-power factor DC power supply.
Technical background
Traditional high power DC power supply is directly to connect electric capacity behind rectifier bridge.Because this structure AC power directly to the electric capacity charging, form very big non-linear harmonic wave electric current, and this non-linear harmonic wave is harmful to electric power system, in order to reduce harmonic current, meets the EN61000-3-2 international standard, people have proposed a lot of methods.As secondary high power factor correction circuit and single-stage Active PFC circuit.Secondary high power factor direct current power supply (Fig. 1) is as you know, and it is with an inductance and a switching tube voltage on the electric capacity to be improved, and AC power just can not directly be charged to electric capacity like this, thereby has avoided harmonic current.But this method has following weak point: first with the voltage lifting, and in the high frequency voltage transformation device of back, the switching tube both end voltage will increase when turn-offing, thereby has increased the possibility that switching tube damages.We know that the price of switching tube is relevant with the voltage that switching tube can bear, and promptly magnitude of voltage is high more, and price is also high more; The second, owing to increase the one-level switching tube as booster tension usefulness, thus increased the loss of electric energy.
The invention brief introduction
The present invention has overcome above-mentioned shortcoming, and it has added the diode and the electric capacity of deboost on main switch turn-offs.Thereby limited the surge voltage when switch turn-offs.This voltage can be determined according to our designing requirement, generally be that it is limited in about 370 volts, the present invention uses main switch and auxiliary switch acting in conjunction in high frequency transformer, is not the switching tube of booster tension specially, thereby has not just had unnecessary electric energy loss.Circuit of the present invention (Fig. 2) connects as follows: primary coil one end of high frequency transformer 240 links to each other with the output cathode of rectifier bridge 210, and the other end of primary coil links to each other with the anode of main switch 260 1 ends and diode 270.The other end of main switch 260 links to each other with the output negative pole of rectifier bridge 210.The negative electrode of diode 270 links to each other with the positive pole and auxiliary switch 250 1 ends of electric capacity 290.The negative pole of electric capacity 290 links to each other with the negative pole of silicon emigrant 210 outputs.The other end of auxiliary switch 250 links to each other with the output cathode of rectifier bridge 210.Secondary wire 280 is rectifying and wave-filtering circuits.
Operation principle of the present invention is as follows: AC power is by rectifier bridge 210, transformer 240 primary coils and diode 240 during beginning, to electric capacity 290 chargings, also at the secondary generation induced voltage of transformer, secondary wire forms a direct current with this current commutates filtering simultaneously.When the voltage on the electric capacity reached the AC supply voltage peak value, AC power was no longer directly charged to electric capacity.At this moment, when control conducting pulse arrives, auxiliary switch 250 conductings, also conducting of main switch 260.Electric capacity 270 discharges by auxiliary switch 250, transformer 240 primary coils, main 260 passes of opening.Also at the secondary generation induced voltage of transformer, secondary wire forms a direct current with this current commutates filtering simultaneously.When control conducting end-of-pulsing, auxiliary switch ends, main switch ends, because the voltage of rectifier bridge output adds that voltage on the transformer is greater than the voltage on the electric capacity, electric current charges to electric capacity by rectifier bridge, transformer, diode, and a work period just finishes.Constantly repeat the above-mentioned work period, the AC power whole work period is all charged to electric capacity.Because AC supply voltage is by varies with sinusoidal function, when AC power instant magnitude of voltage when high more, just big more to the electric capacity charging current; Otherwise instant magnitude of voltage hour charging current more is just more little, also just say AC power to the electric capacity charging by varies with sinusoidal function.Magnitude of voltage on the electric capacity is relevant with the inductance value of primary coil.Inductance value is big more, and voltage is high more.General selection inductance value is as long as its magnitude of voltage that satisfies on the electric capacity is just passable greater than the voltage peak of AC power.
Description of drawings
Fig. 1 is the power circuit of secondary High Power Factor.
Fig. 2 is the power circuit of single-stage high-power rate factor of the present invention.
Fig. 3 is that the present invention increases the power circuit that an inductance constitutes on the basis of Fig. 2.
Fig. 4 is the present invention increases a fast diode and a little electric capacity formation on the basis of Fig. 2 a power circuit.
Fig. 5 is the present invention increases a fast diode and a little electric capacity formation on the basis of Fig. 3 a power circuit.
Fig. 6 is that the present invention uses the power circuit (the realization circuit of Fig. 4) that field effect transistor constitutes as switching tube.
Of the present invention specifying:
AC power links to each other with the input of rectifier bridge 210 in Fig. 6, rectifier bridge 210 back directly and connect a little electric capacity 230, and fast diode of output cathode series connection 220 backs link to each other with high frequency transformer 240 primary coils one end.High frequency transformer 240 other ends link to each other with the source class of home court effect pipe 260 and the anode of diode 240.The drain electrode of home court effect pipe 260 links to each other with the rectifier bridge output negative pole.The negative electrode of diode links to each other with the positive pole of electric capacity 290 and links to each other with the source electrode of auxiliary field effect transistor 250.The negative pole of electric capacity 290 links to each other with the negative pole of rectifier bridge.The drain electrode of auxiliary field effect transistor 250 links to each other with the negative electrode of fast diode 220.The secondary wire 280 of transformer is a rectifying and wave-filtering circuit.Resistance 253 is connected on the control utmost point and drain electrode of auxiliary field effect transistor, and resistance 263 is connected on the control utmost point and drain electrode of home court effect pipe.
In Fig. 3, when having connect an inductance between rectifier bridge and the high frequency transformer, can increase an inductance at circuit in primary coil voltage sensibility reciprocal deficiency more.
AC power links to each other with the input of rectifier bridge 210 in Fig. 4, and little electric capacity 230 is connected in parallel on the output of rectifier bridge, the fast diode 220 of contacting afterwards.Later circuit and Fig. 2 are together.
AC power links to each other with the input of rectifier bridge 210 in Fig. 5, and little electric capacity 230 is connected in parallel on the output of rectifier bridge, the fast diode 220 of contacting afterwards.Later circuit and Fig. 3 are together.
Claims (8)
1. a high-power factor DC power supply comprises: rectifier bridge, main switch, auxiliary switch, electric capacity, high frequency transformer, diode and secondary wire composition; Its circuit connects as follows: the rectifier bridge input connects AC power, and the output cathode of rectifier bridge links to each other with the primary coil of high frequency transformer one end, and the other end of the primary coil of high frequency transformer links to each other with the anode of main switch one end, diode; The other end of main switch links to each other with the output negative pole of rectifier bridge; The negative electrode of diode links to each other with the positive pole of electric capacity, auxiliary switch one end; The other end of auxiliary switch links to each other with the output cathode of rectifier bridge; The negative pole of electric capacity links to each other with the negative pole of rectifier bridge output; The secondary coil two termination secondary wire of transformer; Secondary wire is a rectifying and wave-filtering circuit or exports the rectifying and wave-filtering circuit more.
2. high-power factor DC power supply according to claim 1 is characterized in that main switch is field effect transistor or triode or IGBT switching tube, and auxiliary switch is field effect transistor or triode or IGBT switching tube.
3. high-power factor DC power supply according to claim 1 is characterized in that major-minor switch controlled mode is: auxiliary switch conducting, back main switch conducting; Auxiliary switch ends, and back main switch ends; Perhaps the two conducting simultaneously or end simultaneously.
4. a high-power factor DC power supply comprises: rectifier bridge, high frequency transformer, diode, electric capacity, inductance and secondary wire composition; Its circuit connects as follows: the rectifier bridge input connects AC power, the output cathode of rectifier bridge links to each other with inductance one end, the inductance other end links to each other with primary coil one end of high frequency transformer, and the other end of high frequency transformer primary coil links to each other with the anode of main switch one end and diode; The other end of main switch links to each other with the negative pole of the output negative pole of rectifier bridge, electric capacity; The negative electrode of diode links to each other with the positive pole of electric capacity and auxiliary switch one end; The other end of auxiliary switch links to each other with the rectifier bridge output cathode; The secondary coil two termination secondary wire of transformer; Secondary wire is a rectifying and wave-filtering circuit, or exports the rectifying and wave-filtering circuit more.
5. high-power factor DC power supply according to claim 4 is characterized in that inductance and position resolver exchange transformer behind inductance or the first inductance behind the promptly first transformer.
6. a high-power factor DC power supply comprises: rectifier bridge, main switch, auxiliary switch, first electric capacity, second electric capacity, first diode, second diode, high frequency transformer and secondary wire composition; Its circuit connects as follows: the rectifier bridge input connects AC power, and rectifier bridge output also connects first electric capacity; The rectifier bridge output cathode connects first diode anode, and the negative electrode of first diode links to each other with high frequency transformer primary coil one end; The other end of the primary coil of high frequency transformer links to each other with the anode of main switch one end and second diode; The main switch other end links to each other with the rectifier bridge negative pole; The negative electrode of second diode links to each other with the positive pole and auxiliary switch one end of second electric capacity; The second electric capacity negative pole links to each other with the output negative pole of rectifier bridge; The auxiliary switch other end links to each other with the negative electrode of first diode; The secondary coil two termination secondary wire of transformer, secondary wire is a rectifying and wave-filtering circuit, or exports the rectifying and wave-filtering circuit more.
7. a high-power factor DC power supply comprises; Rectifier bridge, main switch, auxiliary switch, first electric capacity, second electric capacity, first diode, second diode, inductance, high frequency transformer and secondary wire are formed; Its circuit connects as follows: the rectifier bridge input connects AC power, and rectifier bridge output also connects first electric capacity; The rectifier bridge output cathode connects first diode anode, and the negative electrode of first diode links to each other with an end of inductance; Inductance links to each other with high frequency transformer primary coil one end at the other end, and the other end of high frequency transformer primary coil links to each other with the anode of main switch one end and second diode; The main switch other end links to each other with the rectifier bridge negative pole; The negative electrode of second diode links to each other with the positive pole and auxiliary switch one end of second electric capacity; The second electric capacity negative pole links to each other with the output negative pole of rectifier bridge; The auxiliary switch other end links to each other with first diode cathode; Secondary wire is a rectifying and wave-filtering circuit, or exports the rectifying and wave-filtering circuit more.
8. according to claim 6 or 7 described high-power factor DC power supplies, it is characterized in that first diode is a fast diode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101219179A CN100392968C (en) | 2003-12-08 | 2003-12-08 | A high power factor DC power supply |
| PCT/CN2004/001293 WO2005057766A1 (en) | 2003-12-08 | 2004-11-15 | A dc power supply with.high power factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101219179A CN100392968C (en) | 2003-12-08 | 2003-12-08 | A high power factor DC power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667930A CN1667930A (en) | 2005-09-14 |
| CN100392968C true CN100392968C (en) | 2008-06-04 |
Family
ID=34661428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101219179A Expired - Fee Related CN100392968C (en) | 2003-12-08 | 2003-12-08 | A high power factor DC power supply |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100392968C (en) |
| WO (1) | WO2005057766A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064432B (en) * | 2006-04-30 | 2011-05-25 | 艾默生网络能源系统北美公司 | Voltage dynamic regulation circuit of power factor corrector |
| CN102332834A (en) * | 2011-09-27 | 2012-01-25 | 电子科技大学 | High-efficiency low-harmonic AC/DC (alternating current or direct current) converter |
| CN106452047B (en) * | 2016-11-02 | 2018-11-30 | 全天自动化能源科技（东莞）有限公司 | A kind of single-stage isolated circuit of power factor correction |
| CN106787674A (en) * | 2016-12-23 | 2017-05-31 | 郭志邦 | A kind of circuit of reversed excitation of single-stage PF values output ripple and low voltage high |
| CN108683354B (en) * | 2018-05-28 | 2024-02-02 | 红河学院 | Pulse frequency modulation converter circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372827Y (en) * | 1999-03-10 | 2000-04-05 | 李利华 | Converter for power supply |
| CN1304205A (en) * | 2000-01-07 | 2001-07-18 | 三垦电气株式会社 | Electric source switch appliance |
| CN1374747A (en) * | 2001-02-16 | 2002-10-16 | 三垦电气株式会社 | Switch power source device |
| JP2003018834A (en) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | Switching power circuit |
| CN1428924A (en) * | 2001-12-21 | 2003-07-09 | 富士电机株式会社 | Switch power supply device |
| CN2580675Y (en) * | 2002-11-08 | 2003-10-15 | 钱龙圣 | Lossless absorption circuit used for normal/reverse excitation transducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3475943B2 (en) * | 2001-06-29 | 2003-12-10 | サンケン電気株式会社 | Switching power supply |
-
2003
- 2003-12-08 CN CNB2003101219179A patent/CN100392968C/en not_active Expired - Fee Related
-
2004
- 2004-11-15 WO PCT/CN2004/001293 patent/WO2005057766A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372827Y (en) * | 1999-03-10 | 2000-04-05 | 李利华 | Converter for power supply |
| CN1304205A (en) * | 2000-01-07 | 2001-07-18 | 三垦电气株式会社 | Electric source switch appliance |
| CN1374747A (en) * | 2001-02-16 | 2002-10-16 | 三垦电气株式会社 | Switch power source device |
| JP2003018834A (en) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | Switching power circuit |
| CN1428924A (en) * | 2001-12-21 | 2003-07-09 | 富士电机株式会社 | Switch power supply device |
| CN2580675Y (en) * | 2002-11-08 | 2003-10-15 | 钱龙圣 | Lossless absorption circuit used for normal/reverse excitation transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005057766A1 (en) | 2005-06-23 |
| CN1667930A (en) | 2005-09-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20100108 |