CN201766508U - Single-phase single-pole full-bridge isolated power factor correction converter - Google Patents
Single-phase single-pole full-bridge isolated power factor correction converter Download PDFInfo
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- CN201766508U CN201766508U CN2010205381007U CN201020538100U CN201766508U CN 201766508 U CN201766508 U CN 201766508U CN 2010205381007 U CN2010205381007 U CN 2010205381007U CN 201020538100 U CN201020538100 U CN 201020538100U CN 201766508 U CN201766508 U CN 201766508U
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Abstract
The utility model discloses a single-phase single-pole full-bridge isolated power factor correction converter, which comprises a single-phase input rectifier bridge Q1, a storage capacitor C1, a booster inductor L, a first switching tube S1, a second switching tube S2, a third switching tube S3, a fourth switching tube S4, a high frequency transformer T, a single-phase output rectifier bridge Q2, an output filter capacitor C2 and a start charging branch consisting of a double-switch relay SW1 and a series resistor R1 thereof. The single-phase single-pole full-bridge isolated power factor correction converter adopts soft start modes of the start charging branch and a start limit branch, has small volume, low cost and simple control mode, is easy for realization, and has broad application prospect in the field of power electronics.
Description
Technical field
The utility model relates to a kind of power factor correcting converter, especially relates to a kind of single-phase single-grade full-bridge isolated form power factor correcting converter with soft start charging circuit.
Background technology
The alternating current input power supplying of device such as power electronics is after rectification and filtering, nonlinear load makes input current waveform distort, input current is impulse waveform, contain a large amount of harmonic components, make power factor very low, therefore, improve power factor for reducing energy resource consumption, reduce the volume and weight of power-supply device, dwindle sectional area of wire, weaken power-supply device external radiation and conducted interference all are significant.
At present, suppress power electronic equipment generation harmonic wave and mainly adopt Active PFC (PFC) technology, mainly be divided into two kinds of PPFC (Passive Power Factor Correction) and Active Power Factor Correction, that application is maximum, effect is best is the latter.Active Power Factor Correction Technology can be divided into two kinds on two-stage type and single-stage type by its circuit structure, and two polar form PFC major advantages are: at different levelsly can analyze design and control separately, versatility is better; Shortcoming is: the element number is many, and control circuit is more, and cost increases, and efficient is low.Single-stage type PFC structure is development on the basis of two polar form PFC structures, because of advantages such as its high efficiency, high-performance, high power density, low cost just in time meet the trend and the requirement of power electronics development, and obtains gradually more widely and uses.
The patent No. is that the utility model patent of ZL 00262923.2 discloses a kind of single-stage single-switch power factor correcting converter, it comprises rectifier bridge, transformer, switching tube, the branch road that is in series with diode respectively by two windings, these two branch roads are connected in parallel, the one end links to each other with the positive pole of rectifier bridge through inductance, the other end links to each other with the contact on the former limit of transformer with the switching tube drain electrode, the other end on the former limit of transformer is received the negative pole of rectifier bridge through electric capacity with the source electrode of switching tube, one of them winding and inductance in two windings are coupled, another winding and transformer are coupled, and the secondary output of transformer connects load.Single-stage single-switch power factor correcting converter with said structure, adopt the mode of additional winding type soft starting circuit, increased the difficulty of inductor design on the one hand, inductance volume and cost have also been increased on the other hand, additional winding type soft starting circuit is in the soft start stage, circuit working is in the anti exciting converter pattern, DC/DC full-bridge part switching tube needs additionally to control, increased the complexity of entire circuit control, the reverse requirement of withstand voltage of fast recovery diode is higher, has increased the cost of soft starting circuit.
Summary of the invention
The purpose of this utility model overcomes deficiency of the prior art exactly, and the single-phase single-grade full-bridge isolated form power factor correcting converter that a kind of volume is little, cost is low, control mode is simple, easily realize is provided.
For solving the problems of the prior art, the utility model has adopted following technical scheme: it comprises single-phase input rectifying bridge Q1, storage capacitor C1, boost inductance L, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, high frequency transformer T, single-phase output rectifier bridge Q2 and output filter capacitor C2, also comprise the startup charging paths of forming by biswitch relay SW1 and series resistance R1 thereof
Two outputs of described single-phase input rectifying bridge Q1 are connected with two end points in described startup charging paths left side respectively, and two end points on described startup charging paths right side are connected with the two ends of described filter capacitor C2 respectively,
The cathode output end of described single-phase input rectifying bridge Q1 also with the upper end of described storage capacitor C1 and the front end tandem mutually of described boost inductance L, the lower end of described storage capacitor C1 is connected with the cathode output end of described single-phase input rectifying bridge Q1,
The rear end of described boost inductance L and the drain electrode of the described first switching tube S1 and the drain electrode tandem mutually of second switch pipe S2, the source electrode of the described first switching tube S1 is connected with the drain electrode of described the 3rd switching tube S3, the source electrode of described second switch pipe S2 is connected with the drain electrode of described the 4th switching tube S4, the source electrode of the source electrode of described the 3rd switching tube S3 and described the 4th switching tube S4 is connected with the cathode output end of described single-phase input rectifying bridge Q1 respectively
The lead-out wire of described first switching tube S1 and the tie point of described the 3rd switching tube S3 is connected with an end of the elementary winding of described high frequency transformer T, the lead-out wire of described second switch pipe S2 and the tie point of described the 4th switching tube S4 is connected with the other end of the elementary winding of described high frequency transformer T
The two ends of the secondary winding of described high frequency transformer T are connected with two inputs of described single-phase output rectifier bridge Q2 respectively, and described output filter capacitor C2 is connected in parallel between two outputs of described single-phase output rectifier bridge Q2.
Further, be provided with the startup current limliting branch road of forming by single switch relay SW2 and parallel resistance R2 thereof between the front end of the cathode output end of described single-phase input rectifying bridge Q1 and inductance L.
The advantage of the utility model single-phase single-grade full-bridge isolated form power factor correcting converter is:
1) the startup charging paths of being made up of biswitch relay SW1 and series resistance R1 thereof is set, cost is low, and control mode is simple;
2) the startup current limliting branch road of being made up of single switch relay SW2 and parallel resistance R2 thereof, the effectively duty ratio of control circuit are set.
In a word, the utility model single-phase single-grade full-bridge isolated form power factor correcting converter adopts the soft-start mode that starts charging paths and start the current limliting branch road, volume is little, cost is low, control mode is simple, easily realization, has broad application prospects in field of power electronics.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model single-phase single-grade full-bridge isolated form power factor correcting converter.
Fig. 2 is the soft start workflow diagram that starts charging paths among Fig. 1 and start the current limliting branch road.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model single-phase single-grade full-bridge isolated form power factor correcting converter, comprise single-phase input rectifying bridge Q1, storage capacitor C1, boost inductance L, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, high frequency transformer T, single-phase output rectifier bridge Q2 and output filter capacitor C2, also comprise startup charging paths of forming by biswitch relay SW1 and series resistance R1 thereof 1 and the startup current limliting branch road of forming by single switch relay SW2 and parallel resistance R2 thereof 2.
In the present embodiment, two outputs of single-phase input rectifying bridge Q1 are connected with two end points that start charging paths 1 left side respectively, and two end points that start the right side of charging paths 1 are connected with the two ends of filter capacitor C2 respectively.
In the present embodiment, the cathode output end of single-phase input rectifying bridge Q1 is connected with an end that starts current limliting branch road 2, start the other end and the upper end of storage capacitor C1 and the front end tandem mutually of boost inductance L of current limliting branch road 2, the lower end of storage capacitor C1 is connected with the cathode output end of single-phase input rectifying bridge Q1.
In the present embodiment, the rear end of boost inductance L and the drain electrode of the first switching tube S1 and the drain electrode tandem mutually of second switch pipe S2, the source electrode of the first switching tube S1 is connected with the drain electrode of the 3rd switching tube S3, the source electrode of second switch pipe S2 is connected with the drain electrode of the 4th switching tube S4, and the source electrode of the source electrode of the 3rd switching tube S3 and the 4th switching tube S4 is connected with the cathode output end of single-phase input rectifying bridge Q1 respectively.
In the present embodiment, the lead-out wire of the first switching tube S1 and the tie point of the 3rd switching tube S3 is connected with an end of the elementary winding of high frequency transformer T, and the lead-out wire of second switch pipe S2 and the tie point of the 4th switching tube S4 is connected with the other end of the elementary winding of high frequency transformer T.
In the present embodiment, the two ends of the secondary winding of high frequency transformer T are connected with two inputs of single-phase output rectifier bridge Q2 respectively, and output filter capacitor C2 is connected in parallel between two outputs of single-phase output rectifier bridge Q2.
As shown in Figure 2, the startup charging paths of the utility model single-phase single-grade full-bridge isolated form power factor correcting converter with the course of work that startup current limliting branch road carries out soft start is:
At first, in the time of the firm starting up of circuit, closed biswitch relay SW1, circuit is storage capacitor C1 charging by the series resistance R1 that starts charging paths 1;
Secondly, when the both end voltage that detects storage capacitor C1 no longer rises, disconnect biswitch relay SW1, start single-phase single-grade full-bridge isolated form power factor correction converter circuit, circuit is storage capacitor C1 charging by the parallel resistance R2 current limliting that starts current limliting branch road 2;
Once more, when the both end voltage that detects storage capacitor C1 once more no longer rose, closed single switch SW 2 was cut off parallel resistance R2 current limliting, normally moves single-phase single-grade full-bridge isolated form power factor correction converter circuit, and soft start finishes.
The utility model is not limited to above-mentioned execution mode, no matter do any variation on its shape or structure, is everyly utilizing switch relay and series connection thereof and parallel resistance to carry out all having dropped within the utility model protection range of soft start.
Claims (2)
1. single-phase single-grade full-bridge isolated form power factor correcting converter, comprise single-phase input rectifying bridge Q1, storage capacitor C1, boost inductance L, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, high frequency transformer T, single-phase output rectifier bridge Q2 and output filter capacitor C2, it is characterized in that, also comprise the startup charging paths of forming by biswitch relay SW1 and series resistance R1 thereof (1)
Two outputs of described single-phase input rectifying bridge Q1 are connected with two end points in described startup charging paths (1) left side respectively, and two end points on described startup charging paths (1) right side are connected with the two ends of described filter capacitor C2 respectively,
The cathode output end of described single-phase input rectifying bridge Q1 also with the upper end of described storage capacitor C1 and the front end tandem mutually of described boost inductance L, the lower end of described storage capacitor C1 is connected with the cathode output end of described single-phase input rectifying bridge Q1,
The rear end of described boost inductance L and the drain electrode of the described first switching tube S1 and the drain electrode tandem mutually of second switch pipe S2, the source electrode of the described first switching tube S1 is connected with the drain electrode of described the 3rd switching tube S3, the source electrode of described second switch pipe S2 is connected with the drain electrode of described the 4th switching tube S4, the source electrode of the source electrode of described the 3rd switching tube S3 and described the 4th switching tube S4 is connected with the cathode output end of described single-phase input rectifying bridge Q1 respectively
The lead-out wire of described first switching tube S1 and the tie point of described the 3rd switching tube S3 is connected with an end of the elementary winding of described high frequency transformer T, the lead-out wire of described second switch pipe S2 and the tie point of described the 4th switching tube S4 is connected with the other end of the elementary winding of described high frequency transformer T
The two ends of the secondary winding of described high frequency transformer T are connected with two inputs of described single-phase output rectifier bridge Q2 respectively, and described output filter capacitor C2 is connected in parallel between two outputs of described single-phase output rectifier bridge Q2.
2. single-phase single-grade full-bridge isolated form power factor correcting converter according to claim 1, it is characterized in that, be provided with the startup current limliting branch road of forming by single switch relay SW2 and parallel resistance R2 thereof (2) between the cathode output end of described single-phase input rectifying bridge Q1 and the front end of inductance L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205381007U CN201766508U (en) | 2010-09-21 | 2010-09-21 | Single-phase single-pole full-bridge isolated power factor correction converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205381007U CN201766508U (en) | 2010-09-21 | 2010-09-21 | Single-phase single-pole full-bridge isolated power factor correction converter |
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| CN201766508U true CN201766508U (en) | 2011-03-16 |
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| CN2010205381007U Expired - Fee Related CN201766508U (en) | 2010-09-21 | 2010-09-21 | Single-phase single-pole full-bridge isolated power factor correction converter |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231604A (en) * | 2011-07-06 | 2011-11-02 | 深圳市英威腾电源有限公司 | Rectifier and uninterruptible power system (UPS) |
| CN102522884A (en) * | 2011-12-19 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | LDO (Low Dropout Regulator) circuit for high-input voltage |
| CN103208911A (en) * | 2013-04-23 | 2013-07-17 | 苏州奥宝杰电机科技有限公司 | Soft starting device of unidirectional transformer |
| TWI501496B (en) * | 2013-06-06 | 2015-09-21 | Chang Chun Petrochemical Co | Uninterruptible power protection apparatus and manufacturing system for producing electrolytic copper foil |
| CN107171544A (en) * | 2017-05-23 | 2017-09-15 | 杭州电子科技大学 | A kind of full digital full-bridge isolated single-phase single-grade PFC（PFC）Converter |
| CN110943641A (en) * | 2019-11-22 | 2020-03-31 | 燕山大学 | Pulse width modulation method of current type three-phase high-frequency link matrix inverter |
| CN111509986A (en) * | 2020-05-19 | 2020-08-07 | 深圳英飞源技术有限公司 | Auxiliary slow start and discharge circuit of bidirectional phase-shifted full-bridge converter |
| CN111564963A (en) * | 2020-06-11 | 2020-08-21 | 国网上海市电力公司 | A single-phase LC series current limiting circuit and method thereof |
| CN112421641A (en) * | 2020-11-20 | 2021-02-26 | 重庆瑞盾科技发展有限公司 | Base station external network capacity increasing and voltage stabilizing system and method |
| CN112448600A (en) * | 2019-09-03 | 2021-03-05 | 西安航兴海拓电子科技有限公司 | Integrated power supply |
-
2010
- 2010-09-21 CN CN2010205381007U patent/CN201766508U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231604A (en) * | 2011-07-06 | 2011-11-02 | 深圳市英威腾电源有限公司 | Rectifier and uninterruptible power system (UPS) |
| CN102522884A (en) * | 2011-12-19 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | LDO (Low Dropout Regulator) circuit for high-input voltage |
| CN102522884B (en) * | 2011-12-19 | 2015-04-01 | 埃泰克汽车电子(芜湖)有限公司 | LDO (Low Dropout Regulator) circuit for high-input voltage |
| CN103208911A (en) * | 2013-04-23 | 2013-07-17 | 苏州奥宝杰电机科技有限公司 | Soft starting device of unidirectional transformer |
| TWI501496B (en) * | 2013-06-06 | 2015-09-21 | Chang Chun Petrochemical Co | Uninterruptible power protection apparatus and manufacturing system for producing electrolytic copper foil |
| CN107171544A (en) * | 2017-05-23 | 2017-09-15 | 杭州电子科技大学 | A kind of full digital full-bridge isolated single-phase single-grade PFC（PFC）Converter |
| CN112448600A (en) * | 2019-09-03 | 2021-03-05 | 西安航兴海拓电子科技有限公司 | Integrated power supply |
| CN110943641A (en) * | 2019-11-22 | 2020-03-31 | 燕山大学 | Pulse width modulation method of current type three-phase high-frequency link matrix inverter |
| CN110943641B (en) * | 2019-11-22 | 2021-09-07 | 燕山大学 | A pulse width modulation method of a current-mode three-phase high-frequency chain-matrix inverter |
| CN111509986A (en) * | 2020-05-19 | 2020-08-07 | 深圳英飞源技术有限公司 | Auxiliary slow start and discharge circuit of bidirectional phase-shifted full-bridge converter |
| CN111564963A (en) * | 2020-06-11 | 2020-08-21 | 国网上海市电力公司 | A single-phase LC series current limiting circuit and method thereof |
| CN112421641A (en) * | 2020-11-20 | 2021-02-26 | 重庆瑞盾科技发展有限公司 | Base station external network capacity increasing and voltage stabilizing system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180921 |