CN102545654A - Input rectification circuit of auxiliary power supply - Google Patents
Input rectification circuit of auxiliary power supply Download PDFInfo
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- CN102545654A CN102545654A CN2010105982003A CN201010598200A CN102545654A CN 102545654 A CN102545654 A CN 102545654A CN 2010105982003 A CN2010105982003 A CN 2010105982003A CN 201010598200 A CN201010598200 A CN 201010598200A CN 102545654 A CN102545654 A CN 102545654A
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Abstract
The invention discloses an input rectification circuit of an auxiliary power supply. The input rectification circuit is provided with an auxiliary power supply circuit, a voltage booster circuit, a direct current energy storage circuit, an inverter output circuit, diodes (D1 and D2) and a power switch SW1, wherein the auxiliary power supply circuit is provided with a transformer TX1 and a metal-oxide-semiconductor field-effect transistor (MOSFET) tube Q2; the voltage booster circuit is provided with an inductor L1, a rectifier bridge REC1, an insulated gate bipolar transistor (IGBT) tube Q1 and diodes (D3 and D4); the anode of the diode D1 and a normally closed contact of the power switch SW1 are connected with an L end of a mains supply; the anode of the diode D2, an end 2 of the rectifier bridge REC1, the cathode of a polarity capacitor C1, the anode of a polarity capacitor C2 and an end 2 of the inverter circuit are connected with an N end of the mains supply respectively; and the cathode of the diode D1 and the cathode of the diode D2 are connected with an end 1 of the transformer TX1. The input rectification circuit of the auxiliary power supply can make use of part of components of a main circuit, can supply power to the auxiliary power supply by using a few components after the mains supply is subjected to full-wave rectification, and is simple in structure and low in cost.
Description
Technical field
The present invention relates to the uninterrupted power supply (ups) Unity technology, particularly relate to a kind of input rectification circuit of accessory power supply.
Background technology
In ups power, for reducing the energy storage filter capacitor of accessory power supply input/output terminal, it is the accessory power supply power supply that common civil power all need pass through full-wave rectifying circuit.Simultaneously, accessory power supply need be set up power supply before the major loop work usually, so accessory power supply will be realized 4 diodes of the common single-phase needs of full-wave rectification from the power taking process of civil power.Shown in accompanying drawing two, from the civil power to the accessory power supply through 4 diodes (D3 D4) realizes full-wave rectification for D1, D2, and needed components and parts are more, complex structure, cost is higher.
Not enough to prior art, provide a kind of input rectification circuit of accessory power supply very necessary to solve the prior art deficiency.
Summary of the invention
The objective of the invention is to avoid the weak point of prior art and the input rectification circuit of accessory power supply simple in structure, with low cost is provided.
The object of the invention is realized through following technical measures.
A kind of input rectification circuit of accessory power supply is provided with auxiliary power circuit, booster circuit, dc energy storage circuit, inverter output circuit, diode D1, D2 and power switch SW1;
Said auxiliary power circuit is provided with transformer TX1 and MOSFET pipe Q2, and said transformer TX1 is provided with 1 end, 2 ends, 3 ends and 4 ends;
Said booster circuit is provided with inductance L 1, rectifier bridge REC1, IGBT pipe Q1, diode D3, D4, and said rectifier bridge REC1 is provided with 1 end, 2 ends, 3 ends and 4 ends;
Said dc energy storage circuit is provided with polar capacitor C1 and C2;
Said inverter output circuit is provided with 1 end, 2 ends and 3 ends;
The normally-closed contact of the positive pole of said diode D1, power switch SW1 is connected with civil power L end; The positive pole of 2 ends of the positive pole of said diode D2, rectifier bridge REC1, the negative pole of polar capacitor C1, polar capacitor C2,2 ends of inverter circuit are connected with civil power N end; The negative pole of said diode D1, the negative pole of D2 are connected with 1 end of transformer TX1; 2 ends of said transformer TX1 are connected with the drain electrode of MOSFET pipe Q2; The source electrode of said MOSFET pipe Q2,1 end of rectifier bridge REC1 are connected with the emitter of IGBT pipe Q1; The normally opened contact of power switch SW1 is connected with an end of inductance L 1; The negative pole of the positive pole of the other end of inductance L 1, diode D3, diode D4 is connected with 4 ends of rectifier bridge REC1, and the positive pole of the negative pole of said diode D3, said polar capacitor C1 is connected with 1 end of inverter output circuit, and the negative pole of the negative pole of said diode D4, said polar capacitor C2 is connected with 3 ends of said inverter circuit.
The model of said diode D1 is 1N4007.
The model of said diode D2 is 1N4007.
Said inductance L 1 is 500uH.
The model of said IGBT pipe Q1 is IRG4PC40W.
The model of said MOSFET pipe Q2 is IRF640.
The model of said diode D3 is RHRP15120.
The model of said diode D4 is RHRP15120.
Said polar capacitor C1 is set to 1600uF, 450V.
Said polar capacitor C2 is set to 1600uF, 450V.
The input rectification circuit of a kind of accessory power supply of the present invention is provided with auxiliary power circuit, booster circuit, dc energy storage circuit, inverter output circuit, diode D1, D2 and power switch SW1; Said auxiliary power circuit is provided with transformer TX1 and MOSFET pipe Q2, and said transformer TX1 is provided with 1 end, 2 ends, 3 ends and 4 ends; Said booster circuit is provided with inductance L 1, rectifier bridge REC1, IGBT pipe Q1, diode D3, D4, and said rectifier bridge REC1 is provided with 1 end, 2 ends, 3 ends and 4 ends; Said dc energy storage circuit is provided with polar capacitor C1 and C2; Said inverter output circuit is provided with 1 end, 2 ends and 3 ends; The normally-closed contact of the positive pole of said diode D1, power switch SW1 is connected with civil power L end; The positive pole of 2 ends of the positive pole of said diode D2, rectifier bridge REC1, the negative pole of polar capacitor C1, polar capacitor C2,2 ends of inverter circuit are connected with civil power N end; The negative pole of said diode D1, the negative pole of D2 are connected with 1 end of transformer TX1; 2 ends of said transformer TX1 are connected with the drain electrode of MOSFET pipe Q2; The source electrode of said MOSFET pipe Q2,1 end of rectifier bridge REC1 are connected with the emitter of IGBT pipe Q1; The normally opened contact of power switch SW1 is connected with an end of inductance L 1; The negative pole of the positive pole of the other end of inductance L 1, diode D3, diode D4 is connected with 4 ends of rectifier bridge REC1, and the positive pole of the negative pole of said diode D3, said polar capacitor C1 is connected with 1 end of inverter output circuit, and the negative pole of the negative pole of said diode D4, said polar capacitor C2 is connected with 3 ends of said inverter circuit.Can utilize the subelement of main circuit, realize that with less components and parts after the civil power full-wave rectification be the accessory power supply power supply, circuit structure is simple, and is with low cost.
Description of drawings
Utilize accompanying drawing that the present invention is further described, but the content in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the circuit diagram of the input rectification circuit of a kind of accessory power supply of the present invention.
Fig. 2 is the circuit diagram of the input rectification circuit of a kind of accessory power supply of prior art.
In Fig. 1, comprising:
Dc energy storage circuit 300,
Embodiment
In conjunction with following examples the present invention is further described.
A kind of input rectification circuit of accessory power supply; As shown in Figure 1; Be provided with auxiliary power circuit 100, booster circuit 200, dc energy storage circuit 300, inverter output circuit 400, diode D1, D2 and power switch SW1, power switch SW1 can be relay or SCR etc.
Said auxiliary power circuit 100 is provided with transformer TX1 and MOSFET pipe Q2, and said transformer TX1 is provided with 1 end, 2 ends, 3 ends and 4 ends.
Said booster circuit 200 is provided with inductance L 1, rectifier bridge REC1, IGBT pipe Q1, diode D3, D4, and said rectifier bridge REC1 is provided with 1 end, 2 ends, 3 ends and 4 ends.
Said dc energy storage circuit 300 is provided with polar capacitor C1 and C2; Said inversion output electricity 400 is provided with 1 end, 2 ends and 3 ends.
The normally-closed contact of the positive pole of said diode D1, power switch SW1 is connected with civil power L end; The positive pole of 2 ends of the positive pole of said diode D2, rectifier bridge REC1, the negative pole of polar capacitor C1, polar capacitor C2,2 ends of inverter circuit are connected with civil power N end; The negative pole of said diode D1, the negative pole of D2 are connected with 1 end of transformer TX1; 2 ends of said transformer TX1 are connected with the drain electrode of MOSFET pipe Q2; The source electrode of said MOSFET pipe Q2,1 end of rectifier bridge REC1 are connected with the emitter of IGBT pipe Q1; The normally opened contact of power switch SW1 is connected with an end of inductance L 1; The negative pole of the positive pole of the other end of inductance L 1, diode D3, diode D4 is connected with 4 ends of rectifier bridge REC1, and the positive pole of the negative pole of said diode D3, said polar capacitor C1 is connected with 1 end of inversion output electricity 400, and the negative pole of the negative pole of said diode D4, said polar capacitor C2 is connected with 3 ends of said inverter circuit.
The input rectification circuit of a kind of accessory power supply of the present invention, civil power L end, diode D1, transformer TX1, MOSFET pipe Q2, rectifier bridge REC1 and civil power N end constitute the positive half cycle of civil power loop; And civil power N end, diode D2, transformer TX1, MOSFET pipe Q2, rectifier bridge REC1, inductance L 1, power switch SW1 and civil power L end constitute civil power negative half period loop.This circuit has utilized the rectifier bridge REC1 of major loop to constitute the loop of auxiliary power circuit 100 full-wave rectification power takings.When the UPS standby,, after the civil power halfwave rectifier auxiliary power circuit 100 power supplies because power switch SW1 is not closed.And stand-by power consumption is less, need not to increase the storage capacitor of accessory power supply.When UPS got into operate as normal, power switch SW1 was closed, and then civil power is auxiliary power circuit 100 power supplies after full-wave rectification.So the present invention can utilize the subelement of main circuit, realize that with less components and parts after the civil power full-wave rectification be the accessory power supply power supply, circuit structure is simple, and is with low cost.
A kind of input rectification circuit of accessory power supply, other structure is identical with embodiment 1, and difference is that the model of diode D1 is 1N4007, and the model of diode D2 is 1N4007, and inductance L 1 is 500uH.
The model of IGBT pipe Q1 is IRG4PC40W, and the model of MOSFET pipe Q2 is IRF640, and the model of diode D3 is RHRP15120, and the model of diode D4 is RHRP15120.
Polar capacitor C1 is set to 1600uF, 450V; Polar capacitor C2 is set to 1600uF, 450V.
This circuit can utilize the subelement of main circuit, realizes that with less components and parts after the civil power full-wave rectification be the accessory power supply power supply, and circuit structure is simple, and is with low cost.
Should be noted that at last; Above embodiment is only in order to technical scheme of the present invention to be described but not to the restriction of protection range of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. the input rectification circuit of an accessory power supply is characterized in that:
Be provided with auxiliary power circuit, booster circuit, dc energy storage circuit, inverter output circuit, diode D1, D2 and power switch SW1;
Said auxiliary power circuit is provided with transformer TX1 and MOSFET pipe Q2, and said transformer TX1 is provided with 1 end, 2 ends, 3 ends and 4 ends;
Said booster circuit is provided with inductance L 1, rectifier bridge REC1, IGBT pipe Q1, diode D3, D4, and said rectifier bridge REC1 is provided with 1 end, 2 ends, 3 ends and 4 ends;
Said dc energy storage circuit is provided with polar capacitor C1 and C2;
Said inverter output circuit is provided with 1 end, 2 ends and 3 ends;
The normally-closed contact of the positive pole of said diode D1, power switch SW1 is connected with civil power L end; The positive pole of 2 ends of the positive pole of said diode D2, rectifier bridge REC1, the negative pole of polar capacitor C1, polar capacitor C2,2 ends of inverter circuit are connected with civil power N end; The negative pole of said diode D1, the negative pole of D2 are connected with 1 end of transformer TX1; 2 ends of said transformer TX1 are connected with the drain electrode of MOSFET pipe Q2; The source electrode of said MOSFET pipe Q2,1 end of rectifier bridge REC1 are connected with the emitter of IGBT pipe Q1; The normally opened contact of power switch SW1 is connected with an end of inductance L 1; The negative pole of the positive pole of the other end of inductance L 1, diode D3, diode D4 is connected with 4 ends of rectifier bridge REC1, and the positive pole of the negative pole of said diode D3, said polar capacitor C1 is connected with 1 end of inverter output circuit, and the negative pole of the negative pole of said diode D4, said polar capacitor C2 is connected with 3 ends of said inverter circuit.
2. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: the model of said diode D1 is 1N4007.
3. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: the model of said diode D2 is 1N4007.
4. the input rectification circuit of accessory power supply according to claim 1 is characterized in that: said inductance L 1 is 500uH.
5. the input rectification circuit of accessory power supply according to claim 1 is characterized in that: the model of said IGBT pipe Q1 is IRG4PC40W.
6. the input rectification circuit of accessory power supply according to claim 1 is characterized in that: the model of said MOSFET pipe Q2 is IRF640.
7. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: the model of said diode D3 is RHRP15120.
8. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: the model of said diode D4 is RHRP15120.
9. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: said polar capacitor C1 is set to 1600uF, 450V.
10. the input rectification circuit of accessory power supply according to claim 1, it is characterized in that: said polar capacitor C2 is set to 1600uF, 450V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105982003A CN102545654A (en) | 2010-12-21 | 2010-12-21 | Input rectification circuit of auxiliary power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105982003A CN102545654A (en) | 2010-12-21 | 2010-12-21 | Input rectification circuit of auxiliary power supply |
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| CN102545654A true CN102545654A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105982003A Pending CN102545654A (en) | 2010-12-21 | 2010-12-21 | Input rectification circuit of auxiliary power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015513A (en) * | 2017-06-06 | 2017-08-04 | 浙江绍兴苏泊尔生活电器有限公司 | Control circuit, household appliance and power supply method of household appliance |
| CN107612370A (en) * | 2017-09-19 | 2018-01-19 | 珠海格力电器股份有限公司 | Multichannel rectification circuit and Switching Power Supply altogether |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288455B1 (en) * | 1998-04-09 | 2001-09-11 | Yamaha Corporation | Power supply circuit structure and electric equipment using the same |
| US7280374B1 (en) * | 2006-05-09 | 2007-10-09 | Ming-Ho Huang | Single-stage power factor correction circuit |
| JP2008043150A (en) * | 2006-08-09 | 2008-02-21 | Murata Mfg Co Ltd | Switching power-supply device and electronic device |
| JP4590859B2 (en) * | 2003-11-26 | 2010-12-01 | ダイキン工業株式会社 | Power converter |
| CN201878022U (en) * | 2010-12-21 | 2011-06-22 | 广东易事特电源股份有限公司 | Input rectifier circuit of auxiliary power supply |
-
2010
- 2010-12-21 CN CN2010105982003A patent/CN102545654A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288455B1 (en) * | 1998-04-09 | 2001-09-11 | Yamaha Corporation | Power supply circuit structure and electric equipment using the same |
| JP4590859B2 (en) * | 2003-11-26 | 2010-12-01 | ダイキン工業株式会社 | Power converter |
| US7280374B1 (en) * | 2006-05-09 | 2007-10-09 | Ming-Ho Huang | Single-stage power factor correction circuit |
| JP2008043150A (en) * | 2006-08-09 | 2008-02-21 | Murata Mfg Co Ltd | Switching power-supply device and electronic device |
| CN201878022U (en) * | 2010-12-21 | 2011-06-22 | 广东易事特电源股份有限公司 | Input rectifier circuit of auxiliary power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015513A (en) * | 2017-06-06 | 2017-08-04 | 浙江绍兴苏泊尔生活电器有限公司 | Control circuit, household appliance and power supply method of household appliance |
| CN107612370A (en) * | 2017-09-19 | 2018-01-19 | 珠海格力电器股份有限公司 | Multichannel rectification circuit and Switching Power Supply altogether |
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Application publication date: 20120704 |