CN203896183U - Single-phase-input high-power power supply circuit with active power factor correction - Google Patents
Single-phase-input high-power power supply circuit with active power factor correction Download PDFInfo
- Publication number
- CN203896183U CN203896183U CN201420276632.6U CN201420276632U CN203896183U CN 203896183 U CN203896183 U CN 203896183U CN 201420276632 U CN201420276632 U CN 201420276632U CN 203896183 U CN203896183 U CN 203896183U
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- China
- Prior art keywords
- circuit
- power
- power supply
- output
- mos pipe
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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
-
- 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
Abstract
The utility model provides a single-phase-input high-power power supply circuit with active power factor correction. The single-phase-input high-power power supply circuit comprises an EMI filter circuit, a Boost active power factor correction circuit, an active power correction control circuit, a DC/DC power converting and output rectification filter circuit, and an auxiliary power supply and a control protection circuit thereof. The circuit is simple, the filtering effect is good, the anti-interference ability is strong, the electric power factor is increased, and harmonic pollution to a power system is reduced. Besides, the DC/DC converting circuit in the power supply circuit adopts the method of phase-shifting control and employs the energy of a resonant inductor to realize the switch-on of zero voltage of a leading bridge arm and a lagging bridge arm, indictors such as the efficiency and the reliability of the power supply are improved, electromagnetic interferences can be reduced, and a filtering inductor and a filtering capacitor are easily outputted.
Description
Technical field
The utility model relates to radar electric technical field, is specifically related to a kind of large power, electrically source circuit of single-phase input tape Active Power Factor Correction.
Background technology
In daily life, industrial production and military industry field, Switching Power Supply is little, lightweight with its volume, efficiency is high and the many advantages such as dependable performance is widely adopted.But, adopt the Switching Power Supply of not controlling rectification, because its input impedance is capacitive, between net side input voltage and input current, there is larger phase difference, add that input current is pulse type, therefore power factor is extremely low, harmonic component is very high, has brought serious harmonic pollution to electric power system.The power of Switching Power Supply is larger, and this harmonic pollution is more serious on the impact of electrical network, therefore in powerful Switching Power Supply, all will carry out power factor correction, to improve the power factor of Switching Power Supply.At present, the input power in Radar Technology field, mostly adopts passive power factor correcting circuit, and the shortcoming that adopts this circuit is circuit complexity, and power factor is lower, and harmonic pollution is more serious.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of large power, electrically source circuit of single-phase input tape Active Power Factor Correction, this circuit is simple, power factor that good wave filtering effect, antijamming capability be strong, improved electricity consumption, has reduced the harmonic pollution to electric power system.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A large power, electrically source circuit for single-phase input tape Active Power Factor Correction, comprises EMI filter circuit, Boost APFC, active power correction control circuit, DC/DC power conversion and output rectifier and filter, accessory power supply and control protection electric circuit thereof, the input of described EMI filter circuit is connected with civil power, its output is connected with DC/DC power conversion and output rectifier and filter by Boost APFC, the output of described EMI filter circuit, the output of BOOST APFC is connected with the input of active power correction control circuit respectively, the input of described accessory power supply and control protection electric circuit thereof is connected to the Nodes between Nodes and Boost APFC and DC/DC power conversion and the output rectifier and filter between EMI filter circuit and active power correction control circuit, the output of described accessory power supply and control protection electric circuit thereof is connected with the input of DC/DC power conversion and output rectifier and filter.
Described DC/DC power conversion and output rectifier and filter comprise four switch MOS pipes, resonant inductor, described DC/DC power conversion and output rectifier and filter have high frequency transformer, the drain electrode of described the first switch MOS pipe is connected with the drain electrode of second switch metal-oxide-semiconductor, the source electrode of the 3rd switch MOS pipe is connected with the source electrode of the 4th switch MOS pipe, the source electrode of the first switch MOS pipe is connected with the drain electrode of the 3rd metal-oxide-semiconductor, the source electrode of second switch metal-oxide-semiconductor is connected with the drain electrode of the 4th switch MOS pipe, one end of the primary coil of described high frequency transformer is connected to the Nodes between the first switch MOS Guan Yu tri-switch MOS pipes by resonant inductor, the other end of the primary coil of transformer is connected to the Nodes between second switch metal-oxide-semiconductor and the 4th switch MOS pipe.
The beneficial effects of the utility model are: the power circuit the utility model proposes, adopt active power alignment technique, and not only can improve the power factor of power supply, also the efficiency of power supply is promoted to some extent.This DC/DC translation circuit adopts the method for phase shifting control and utilizes the energy of resonant inductor to realize the no-voltage of leading-bridge and lagging leg open-minded, to improve the index such as efficiency and reliability of power supply, reduces again its electromagnetic interference simultaneously.In addition, this DC/DC converter is taked constant frequency control, is easy to the optimal design of output inductor device and output filter capacitor.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is Boost APFC block diagram of the present utility model;
Fig. 3 is DC/DC power conversion of the present utility model and output rectifier and filter.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
A large power, electrically source circuit for single-phase input tape Active Power Factor Correction, comprises EMI filter circuit, Boost APFC, active power correction control circuit, DC/DC power conversion and output rectifier and filter, accessory power supply and control protection electric circuit thereof, the input of EMI filter circuit is connected with civil power, its output is connected with DC/DC power conversion and output rectifier and filter by Boost APFC, the output of EMI filter circuit, the output of BOOST APFC is connected with the input of active power correction control circuit respectively, the input of accessory power supply and control protection electric circuit thereof is connected to the Nodes between Nodes and Boost APFC and DC/DC power conversion and the output rectifier and filter between EMI filter circuit and active power correction control circuit, the output of described accessory power supply and control protection electric circuit thereof is connected with the input of DC/DC power conversion and output rectifier and filter.
As shown in Figure 2, Boost APFC, comprises inductance L 1, resistance R 1, R2, capacitor C 1, C2, switch Q1, in the time of switch Q1 conducting, electric current flows through inductance coil L1, before inductance coil unsaturation, electric current is linear to be increased, and electric energy is stored in inductance coil L1 with the form of magnetic energy, now, capacitor C 1, C2 electric discharge provides energy for load; In the time that Q1 ends, inductance coil L two ends produce self induction electromotive force, and to keep the sense of current constant, like this, the electromotive force of generation is connected to electric capacity and load supplying with power supply Vin.
DC/DC power conversion circuit is mainly realized the Energy Transfer from elementary to secondary, and realizes the isolation of input and output.The current rectifying and wave filtering circuit of output is converted into direct voltage by full-wave rectification or bridge rectifier by transformer secondary output output, and makes the performance index such as ripple and noise of output voltage meet instructions for use by inductance and capacitor filtering.Choose full-wave rectification or bridge rectifier according to being choosing and the consideration of power loss of device, therefore, situation that output current larger not high for this electric power output voltage, full-wave rectification is proper.As shown in Figure 3, DC/DC power conversion and output rectifier and filter comprise four switch MOS pipe Q
1, Q
2, Q
3, Q
4, resonant inductor L
r, high frequency transformer T
r, the first switch MOS pipe Q
1drain electrode and second switch metal-oxide-semiconductor Q
2drain electrode be connected, the 3rd switch MOS pipe Q
3source electrode and the 4th switch MOS pipe Q
4source electrode be connected, the first switch MOS pipe Q
1source electrode and the 3rd metal-oxide-semiconductor Q
3drain electrode be connected, second switch metal-oxide-semiconductor Q
2source electrode and the 4th switch MOS pipe Q
4drain electrode be connected, high frequency transformer T
rone end of primary coil by resonant inductor L
rbe connected to the first switch MOS pipe Q
1with the 3rd switch MOS pipe Q
3between Nodes, transformer T
rthe other end of primary coil be connected to second switch metal-oxide-semiconductor Q
2with the 4th switch MOS pipe Q
4between Nodes.
In the time of real work, DC/DC translation circuit adopts phase-shift control mode, and two power tubes of each brachium pontis become 180 ° of complementary conductings, and the angle of flow of two brachium pontis differs a phase place, i.e. phase shifting angle carrys out regulation output voltage by the size that regulates phase shifting angle.Because Q1 and Q3 are ahead of respectively Q4 and phase place of Q2, therefore claim that the brachium pontis of Q1 and Q3 composition is leading-bridge, the brachium pontis of Q2 and Q4 composition is lagging leg.DC/DC translation circuit to utilize the energy of resonant inductor to realize the no-voltage of leading-bridge and lagging leg open-minded, to improve the index such as efficiency and reliability of power supply, reduce again its electromagnetic interference, be easy to the optimal design of output inductor device and output filter capacitor simultaneously.
Power circuit described in the utility model is according to the application index request of power supply; use above-mentioned power circuit; and output voltage and the power grade of expecting with realization in conjunction with corresponding control circuit; detection protective circuit in while control circuit also can realize the functions such as input undervoltage protection, input overvoltage protection, output over-voltage protection, output overcurrent protection and the overtemperature protection of power supply, for reliably working and the power consumption equipment of power supply provide safely guarantee.
Claims (2)
1. a large power, electrically source circuit for single-phase input tape Active Power Factor Correction, is characterized in that: comprise EMI filter circuit, Boost APFC, active power correction control circuit, DC/DC power conversion and output rectifier and filter, accessory power supply and control protection electric circuit thereof, the input of described EMI filter circuit is connected with civil power, its output is connected with DC/DC power conversion and output rectifier and filter by Boost APFC, the output of described EMI filter circuit, the output of BOOST APFC is connected with the input of active power correction control circuit respectively, the input of described accessory power supply and control protection electric circuit thereof is connected to the Nodes between Nodes and Boost APFC and DC/DC power conversion and the output rectifier and filter between EMI filter circuit and active power correction control circuit, the output of described accessory power supply and control protection electric circuit thereof is connected with the input of DC/DC power conversion and output rectifier and filter.
2. the large power, electrically source circuit of a kind of single-phase input tape Active Power Factor Correction according to claim 1, is characterized in that: described DC/DC power conversion and output rectifier and filter comprise four switch MOS pipe (Q
1, Q
2, Q
3, Q
4), resonant inductor (L
r), described DC/DC power conversion and output rectifier and filter have high frequency transformer (T
r), described the first switch MOS pipe (Q
1) drain electrode and second switch metal-oxide-semiconductor (Q
2) drain electrode be connected, the 3rd switch MOS pipe (Q
3) source electrode and the 4th switch MOS pipe (Q
4) source electrode be connected, the first switch MOS pipe (Q
1) source electrode and the 3rd metal-oxide-semiconductor (Q
3) drain electrode be connected, second switch metal-oxide-semiconductor (Q
2) source electrode and the 4th switch MOS pipe (Q
4) drain electrode be connected, described high frequency transformer (T
r) one end of primary coil by resonant inductor (L
r) be connected to the first switch MOS pipe (Q
1) and the 3rd switch MOS pipe (Q
3) between Nodes, transformer (T
r) the other end of primary coil be connected to second switch metal-oxide-semiconductor (Q
2) and the 4th switch MOS pipe (Q
4) between Nodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276632.6U CN203896183U (en) | 2014-05-28 | 2014-05-28 | Single-phase-input high-power power supply circuit with active power factor correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276632.6U CN203896183U (en) | 2014-05-28 | 2014-05-28 | Single-phase-input high-power power supply circuit with active power factor correction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896183U true CN203896183U (en) | 2014-10-22 |
Family
ID=51722535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276632.6U Expired - Fee Related CN203896183U (en) | 2014-05-28 | 2014-05-28 | Single-phase-input high-power power supply circuit with active power factor correction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086798A (en) * | 2017-03-30 | 2017-08-22 | 安徽中电兴发与鑫龙科技股份有限公司 | Switching power circuit |
-
2014
- 2014-05-28 CN CN201420276632.6U patent/CN203896183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086798A (en) * | 2017-03-30 | 2017-08-22 | 安徽中电兴发与鑫龙科技股份有限公司 | Switching power circuit |
| CN107086798B (en) * | 2017-03-30 | 2024-02-27 | 安徽中电兴发与鑫龙科技股份有限公司 | Switching power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |