CN214125171U - Distributed high-frequency rectifying device - Google Patents
Distributed high-frequency rectifying device Download PDFInfo
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- CN214125171U CN214125171U CN202022697726.9U CN202022697726U CN214125171U CN 214125171 U CN214125171 U CN 214125171U CN 202022697726 U CN202022697726 U CN 202022697726U CN 214125171 U CN214125171 U CN 214125171U
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Abstract
The utility model discloses a distributed high frequency rectifier device, include the phase-shifting transformer who comprises primary winding and distributed secondary winding unit, primary winding links with the output electricity of three-phase alternating current, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding and the star type secondary winding of arranging in turn, Y type secondary winding's output with the output of star type secondary winding all links with the load electricity through rectifier circuit and chopper voltage reduction circuit in proper order. The utility model adopts the above structure's distributed high frequency rectifier device has the secondary winding's of distributing type phase-shifting transformer through the setting, but independent control load, promptly through the duty cycle of control chopper step-down circuit, can adjust output voltage to control load, power factor can reach 0.95.
Description
Technical Field
The utility model relates to a high frequency switching power supply technique especially relates to a distributing type high frequency rectifier device.
Background
With the development of society and the advancement of technology, high-frequency switching power supplies are widely applied to the fields of industrial equipment, power systems, transportation, military equipment and the like, and are used for converting an alternating current power supply into a stable direct current and supplying the converted direct current to a load. The output end of the existing high-frequency rectifier is uniformly connected with a plurality of loads, and the control is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a distributing type high frequency rectifier device has the secondary winding's of distributing type phase-shifting transformer through the setting, but independent control load, promptly through the duty cycle of control chopper step-down circuit, can adjust output voltage to control load, power factor can reach 0.95.
In order to achieve the above object, the utility model provides a distributed high frequency rectifier device, include the phase-shifting transformer who comprises primary winding and distributed secondary winding unit, primary winding links to each other with the output electricity of three-phase alternating current, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding and the star type secondary winding of alternative arrangement, the output of Y type secondary winding with the output of star type secondary winding all links to each other with the load electricity through rectifier circuit and chopper voltage reduction circuit in proper order.
Preferably, the chopper step-down circuit comprises a switching tube and a protection diode connected between an emitter and a collector of the switching tube in anti-parallel, and a gate of the switching tube is electrically connected with an output end of the pulse width modulation circuit.
Preferably, the switch tube is an IGBT switch tube.
Preferably, the rectification circuit is a three-phase uncontrollable rectification bridge.
Therefore, the utility model adopts the above structure distributed high frequency rectifying device, through setting up the phase-shifting transformer that has the secondary winding of distributing type, but the independent control load, through the duty cycle of control chopper step-down circuit promptly, can adjust output voltage to control load, power factor can reach 0.95.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of a distributed high-frequency rectifying apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is the embodiment of the utility model provides a schematic diagram of distributed high frequency rectifier device, as shown in fig. 1, the utility model discloses a structure, include the phase-shifting transformer of constituteing by primary winding and distributed secondary winding unit, primary winding links with three-phase alternating current's output electricity, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding and the star type secondary winding of arranging in turn, the output of Y type secondary winding with the output of star type secondary winding all links through rectifier circuit and chopper voltage reduction circuit and load electricity in proper order, wherein, rectifier circuit is the uncontrollable rectifier bridge of three-phase. Three-phase alternating current outputs direct current voltage through a three-phase rectifier bridge, then the continuous adjustable direct current voltage can be output through a chopper circuit, and finally the multipath continuous adjustable and isolated direct current voltage is realized. Meanwhile, the chopper step-down circuit comprises a switching tube and a protection diode which is connected between an emitter electrode and a collector electrode of the switching tube in an anti-parallel mode, and a gate electrode of the switching tube is electrically connected with an output end of the pulse width modulation circuit. The switching tube is an IGBT switching tube, and the chopper step-down circuit has the advantages of high output voltage precision, low harmonic content, grid voltage interference resistance and the like.
Therefore, the utility model adopts the above structure distributed high frequency rectifying device, through setting up the phase-shifting transformer that has the secondary winding of distributing type, but the independent control load, through the duty cycle of control chopper step-down circuit promptly, can adjust output voltage to control load, power factor can reach 0.95.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (4)
1. A distributed high-frequency rectifying device is characterized in that: the phase-shifting transformer comprises a primary winding and a distributed secondary winding unit, wherein the primary winding is electrically connected with the output end of three-phase alternating current, the distributed secondary winding unit comprises a Y-type secondary winding and a star-type secondary winding which are magnetically coupled with the primary winding and are alternately arranged, and the output end of the Y-type secondary winding and the output end of the star-type secondary winding are electrically connected with a load through a rectifying circuit and a chopper circuit in sequence.
2. The distributed high-frequency rectification apparatus as claimed in claim 1, wherein: the chopper step-down circuit comprises a switching tube and a protection diode connected between an emitter and a collector of the switching tube in an anti-parallel mode, and a gate pole of the switching tube is electrically connected with an output end of the pulse width modulation circuit.
3. The distributed high-frequency rectification apparatus as claimed in claim 2, wherein: the switch tube is an IGBT switch tube.
4. The distributed high-frequency rectification apparatus as claimed in claim 1, wherein: the rectification circuit is a three-phase uncontrollable rectification bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022697726.9U CN214125171U (en) | 2020-11-20 | 2020-11-20 | Distributed high-frequency rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022697726.9U CN214125171U (en) | 2020-11-20 | 2020-11-20 | Distributed high-frequency rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214125171U true CN214125171U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022697726.9U Active CN214125171U (en) | 2020-11-20 | 2020-11-20 | Distributed high-frequency rectifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214125171U (en) |
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2020
- 2020-11-20 CN CN202022697726.9U patent/CN214125171U/en active Active
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