CN103312142A - AC power supply device - Google Patents
AC power supply device Download PDFInfo
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- CN103312142A CN103312142A CN201210061255XA CN201210061255A CN103312142A CN 103312142 A CN103312142 A CN 103312142A CN 201210061255X A CN201210061255X A CN 201210061255XA CN 201210061255 A CN201210061255 A CN 201210061255A CN 103312142 A CN103312142 A CN 103312142A
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- Prior art keywords
- circuit
- power supply
- accumulator
- power factor
- factor correcting
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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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Abstract
The invention provides an AC power supply device which comprises a power supply input filter circuit (1), a passive power factor correction circuit (2) and an output transformation circuit (3). An output terminal of the power supply input filter circuit (1) is electrically connected with an input terminal of the passive power factor correction circuit (2); and an output terminal of the passive power factor correction circuit (2) is electrically connected with an input terminal of the output transformation circuit (3). Therefore, the AC power supply device provided by the invention comprises the passive power factor correction circuit, possesses functions of the passive power factor correction, the bootstrap boost and the rectification, and has the advantages of low cost, high efficiency, simple structure and small size.
Description
Technical field
The invention belongs to power technique fields, be specifically related to a kind of ac power supply apparatus.
Background technology
Efficiency, environmental protection and cost are three technology focuses of field of power supplies always.Current, for satisfying the requirement of power factor value, various power supplys all need to arrange specially the one-level APFC usually, are used for finishing voltage and promote and power factor correction.Therefore, owing to need the extra APFC of installing, so, improved the complete machine cost, reduced the operating efficiency of complete machine.
Summary of the invention
Defective for the prior art existence, the invention provides a kind of ac power supply apparatus, comprise passive power factor correcting circuit, finish PPFC (Passive Power Factor Correction), Bootstrap and rectification function, have advantages of that cost is low, efficient is high, simple in structure and miniaturization.
The technical solution adopted in the present invention is as follows:
The invention provides a kind of ac power supply apparatus, comprising: power supply input filter circuit (1), passive power factor correcting circuit (2) and output transform circuit (3); Wherein, the output of described power supply input filter circuit (1) is electrically connected with the input of described passive power factor correcting circuit (2), and the output of described passive power factor correcting circuit (2) is electrically connected with the input of described output transform circuit (3).
Preferably, described passive power factor correcting circuit (2) comprising: the first rectifier diode and the second rectifier diode; The negative pole of described the first rectifier diode is electrically connected with the positive output end of described passive power factor correcting circuit (2), and the anodal of described the first rectifier diode exchanges the electrical connection of input neutral line node with the negative pole of described the second rectifier diode simultaneously with power supply; The positive pole of described the second rectifier diode is electrically connected with the negative output terminal of described passive power factor correcting circuit (2).
Preferably, described passive power factor correcting circuit (2) also comprises: the first accumulator (21) and the second accumulator (22); The circuit structure of described the first accumulator (21) and described the second accumulator (22) is all identical with circuit parameter; The positive output end of described the first accumulator (21) is electrically connected with the positive output end of described passive power factor correcting circuit (2), and the negative output terminal of described the first accumulator (21) exchanges input live wire node with the positive output end of described the second accumulator (22) simultaneously and is electrically connected with power supply; The negative output terminal of described the second accumulator (22) is electrically connected with the negative output terminal of described passive power factor correcting circuit (2).
Preferably, described the first accumulator (21) and described the second accumulator (22) are the derivative circuit of filling out the paddy circuit or filling out the paddy circuit.
Preferably, the described paddy circuit of filling out is to fill out the paddy circuit more than the one-level.
Preferably, described the first accumulator (21) and described the second accumulator (22) respectively are a storage capacitor.
Beneficial effect of the present invention is as follows:
(1) by passive power factor correcting circuit, finishes PPFC (Passive Power Factor Correction), Bootstrap and rectification function, have advantages of that cost is low, efficient is high, simple in structure and miniaturization.
(2) allow the interchange output of ac power supply apparatus to be total to the neutral line with exchanging input, save isolating transformer, thus the cost that has further reduced complete machine with take up room.
Description of drawings
The structure principle chart of the ac power supply apparatus that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is used for circuit theory diagrams without the ups power of isolating transformer with ac power supply apparatus provided by the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
The invention provides a kind of ac power supply apparatus, comprising: power supply input filter circuit 1, passive power factor correcting circuit 2 and output transform circuit 3; Wherein, the output of power supply input filter circuit 1 is electrically connected with the input of passive power factor correcting circuit 2, and the output of passive power factor correcting circuit 2 is electrically connected with the input of output transform circuit 3.
The operation principle of above-mentioned ac power supply apparatus is: civil power exchanges input and pass to passive power factor correcting circuit 2 after 1 filtering of power supply input filter circuit, passive power factor correcting circuit 2 boosts after the rectification, one direct current voltage is superimposed upon on the unidirectional sine voltage boosts, then be transferred to output transform level 3.Wherein, DC component is the part of boosting of voltage, in order to satisfy the voltage magnitude requirement of output transform circuit 3 outputs.Because spend to 360 degree gamuts sinusoidal wave 0, output transform circuit 3 is drawn pulse current from power supply input live wire and the neutral line all the time, so can Effective Raise input power factor value again.
Wherein, passive power factor correcting circuit 2 comprises: the first rectifier diode Dr1 and the second rectifier diode Dr2; The negative pole of the first rectifier diode is electrically connected with the positive output end of passive power factor correcting circuit 2, and the anodal of the first rectifier diode exchanges the electrical connection of input neutral line node with the negative pole of the second rectifier diode simultaneously with power supply; The positive pole of the second rectifier diode is electrically connected with the negative output terminal of passive power factor correcting circuit 2.
Passive power factor correcting circuit 2 also comprises: the first accumulator 21 and the second accumulator 22; The circuit structure of the first accumulator 21 and the second accumulator 22 is all identical with circuit parameter; The positive output end of the first accumulator 21 is electrically connected with the positive output end of passive power factor correcting circuit 2, and the negative output terminal of the first accumulator 21 exchanges input live wire node with the positive output end of the second accumulator 22 simultaneously and is electrically connected with power supply; The negative output terminal of the second accumulator 22 is electrically connected with the negative output terminal of passive power factor correcting circuit 2.
Among the present invention, the discharge voltage of the first accumulator 21 and the second accumulator 22 is to be determined by the circuit structure form of accumulator, and when filling out the paddy circuit for the N level, its discharge voltage can be 1/ (N+1) of power supply input sine wave voltage magnitude; Wherein, N is integer.
In actual use, according to the requirement of the power factor value of required boost amplitude and power supply input, can select different circuit structure forms.
Concrete, as shown in Figure 2, for ac power supply apparatus provided by the invention being used for the circuit theory diagrams without the ups power of isolating transformer, the first accumulator 21 and the second accumulator 22 are fills out the paddy circuit.The present invention does not limit the progression of filling out the paddy circuit, can fill out paddy circuit (N 〉=1) for the N level.In addition, the first accumulator 21 and the second accumulator 22 also can respectively be a storage capacitor.
In Fig. 2, the output of ups power and mains ac power supply input sine wave voltage are synchronous, the output of output transform circuit 3 and AC power input be the neutral line altogether, and do not need to use isolating transformer, so, both reduce taking up room of ac power supply apparatus, simultaneously, also reduced the cost of ac power supply apparatus.
Among Fig. 2, the first accumulator 21 and the second accumulator 22 are respectively one-level and fill out the paddy circuit, jointly finish the Bootstrap rectification function with the first rectifier diode Dr1 and the second rectifier diode Dr2, wherein, the amplitude increment of Bootstrap is about half of power supply input sine wave voltage magnitude.In the ideal case, if power supply input sine wave voltage magnitude is 300V, the voltage that then adds to ups power half-bridge inverter 3 is that the DC component of 150V is superimposed upon on the unidirectional sine wave that voltage magnitude is 300V, thereby satisfies the output voltage amplitude requirement of half-bridge inverter 3; In pure resistive load situation, from 0 degree to 360 degree, half-bridge inverter 3 all press sinusoidal wave rule directly from power supply input neutral line and live wire absorption pulse current, thus Effective Raise the input power factor of power supply.
In sum, ac power supply apparatus provided by the invention has the following advantages:
(1) by passive power factor correcting circuit, finishes PPFC (Passive Power Factor Correction), Bootstrap and rectification function, have advantages of that cost is low, efficient is high, simple in structure and miniaturization.
(2) allow the interchange output of ac power supply apparatus to be total to the neutral line with exchanging input, save isolating transformer, thus the cost that has further reduced complete machine with take up room.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (6)
1. an ac power supply apparatus is characterized in that, comprising: power supply input filter circuit (1), passive power factor correcting circuit (2) and output transform circuit (3); Wherein, the output of described power supply input filter circuit (1) is electrically connected with the input of described passive power factor correcting circuit (2), and the output of described passive power factor correcting circuit (2) is electrically connected with the input of described output transform circuit (3).
2. ac power supply apparatus according to claim 1 is characterized in that, described passive power factor correcting circuit (2) comprising: the first rectifier diode and the second rectifier diode; The negative pole of described the first rectifier diode is electrically connected with the positive output end of described passive power factor correcting circuit (2), and the anodal of described the first rectifier diode exchanges the electrical connection of input neutral line node with the negative pole of described the second rectifier diode simultaneously with power supply; The positive pole of described the second rectifier diode is electrically connected with the negative output terminal of described passive power factor correcting circuit (2).
3. ac power supply apparatus according to claim 1 and 2 is characterized in that, described passive power factor correcting circuit (2) also comprises: the first accumulator (21) and the second accumulator (22); The circuit structure of described the first accumulator (21) and described the second accumulator (22) is all identical with circuit parameter; The positive output end of described the first accumulator (21) is electrically connected with the positive output end of described passive power factor correcting circuit (2), and the negative output terminal of described the first accumulator (21) exchanges input live wire node with the positive output end of described the second accumulator (22) simultaneously and is electrically connected with power supply; The negative output terminal of described the second accumulator (22) is electrically connected with the negative output terminal of described passive power factor correcting circuit (2).
4. ac power supply apparatus according to claim 3 is characterized in that, described the first accumulator (21) and described the second accumulator (22) are the derivative circuit of filling out the paddy circuit or filling out the paddy circuit.
5. ac power supply apparatus according to claim 4 is characterized in that, the described paddy circuit of filling out is to fill out the paddy circuit more than the one-level.
6. ac power supply apparatus according to claim 3 is characterized in that, described the first accumulator (21) and described the second accumulator (22) respectively are a storage capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061255XA CN103312142A (en) | 2012-03-09 | 2012-03-09 | AC power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061255XA CN103312142A (en) | 2012-03-09 | 2012-03-09 | AC power supply device |
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| Publication Number | Publication Date |
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| CN103312142A true CN103312142A (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210061255XA Pending CN103312142A (en) | 2012-03-09 | 2012-03-09 | AC power supply device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300800A (en) * | 2014-06-05 | 2015-01-21 | 董振隆 | Phase shift power supply |
| CN109634341A (en) * | 2018-12-27 | 2019-04-16 | 董振隆 | A kind of offset-type regulated power supply with two-way APFC |
| CN109818355A (en) * | 2019-02-15 | 2019-05-28 | 董振隆 | A kind of three port type power grid clarifiers |
| CN109861257A (en) * | 2019-02-26 | 2019-06-07 | 董振隆 | A kind of AC voltage regulator |
| CN110597338A (en) * | 2019-10-08 | 2019-12-20 | 董振隆 | Another simplest compensating voltage-stabilized source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201994844U (en) * | 2011-04-11 | 2011-09-28 | 董振隆 | Power supply with passive power factor correction network |
-
2012
- 2012-03-09 CN CN201210061255XA patent/CN103312142A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201994844U (en) * | 2011-04-11 | 2011-09-28 | 董振隆 | Power supply with passive power factor correction network |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300800A (en) * | 2014-06-05 | 2015-01-21 | 董振隆 | Phase shift power supply |
| CN109634341A (en) * | 2018-12-27 | 2019-04-16 | 董振隆 | A kind of offset-type regulated power supply with two-way APFC |
| CN109634341B (en) * | 2018-12-27 | 2020-06-05 | 董振隆 | Compensation type voltage-stabilized power supply with bidirectional APFC |
| CN109818355A (en) * | 2019-02-15 | 2019-05-28 | 董振隆 | A kind of three port type power grid clarifiers |
| CN109818355B (en) * | 2019-02-15 | 2020-11-24 | 董振隆 | Three-port type power grid purifier |
| CN109861257A (en) * | 2019-02-26 | 2019-06-07 | 董振隆 | A kind of AC voltage regulator |
| CN110597338A (en) * | 2019-10-08 | 2019-12-20 | 董振隆 | Another simplest compensating voltage-stabilized source |
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Application publication date: 20130918 |