CN204517666U

CN204517666U - A kind of friendship bridge-type copped wave bidirectional pressure regulating device

Info

Publication number: CN204517666U
Application number: CN201520218987.4U
Authority: CN
Inventors: 龚秋声
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-06
Filing date: 2015-04-06
Publication date: 2015-07-29
Anticipated expiration: 2025-04-06

Abstract

A kind of bridge-type copped wave bidirectional pressure regulating device of handing over belongs to power electronics AC/AC converter, be made up of 4 bidirectional electronic switch S1 ~ S4 and adjusting control circuit thereof, the bidirectional electronic switch that 4 bidirectional electronic switch S1 ~ S4 are made up of 4 diodes and 1 triode, 4 bidirectional electronic switch S1 ~ S4 connect into bridge-type, by bidirectional electronic switch S1, S2 and S4 forms the AC chopping regulating circuit that 1 homophase exports, by bidirectional electronic switch S3, S4 and S2 forms the AC chopping regulating circuit of another 1 anti-phase output, regulable control 4 bidirectional electronic switch realize the adjustment and the phse conversion that export chopping voltage size.It is corresponding with the DC/AC full-bridge inverting tandem circuit of extensive use, the chopping voltage that alternating-current chopper circuit cuts out 2 ends just can obtain or phase place contrary adjustable alternating voltage identical with AC input voltage waveform same phase after high frequency LC filtering, therefore, it has extensive use value in the equipment such as compensation type AC regulated power supply.

Description

A kind of friendship bridge-type copped wave bidirectional pressure regulating device

[one] technical field the design relates to AC chopping regulating circuit, and the AC chopping voltage especially relating to AC chopping voltage output two ends can positive direction export, the bridge-type waves AC control regulating circuit that can export in the other direction again.

[two] the AC chopping regulating circuit that background technology is present can only export the AC chopping voltage identical with input ac voltage phase place, when it is for high-power compensation type AC regulated power supply, paraphase electronic switch must be increased before AC-input voltage or after interchange output chopping voltage and could realize 2 directions adjustment bucking voltages, last year, same inventor invented a kind of AC chopping bidirectional pressure regulating circuit realizing 2 directions adjustment bucking voltages without electronic switch commutation, but 1 must be had before alternating-current chopper circuit to provide two AC power with centre tapped autotransformer.

[three] object of summary of the invention the design cancels with centre tapped autotransformer, the AC chopping adjustable voltage of design output 2 end phase difference 180 degree.The design adopts 4 bidirectional electronic switch to connect into bridge-type for achieving the above object.

Bridge-type copped wave bidirectional pressure regulating device is handed in the friendship of the design, be made up of 4 bidirectional electronic switch S1 ~ S4 and adjusting control circuit thereof, it is characterized in that: 4 bidirectional electronic switch S1 ~ S4 are the bidirectional electronic switch be made up of 4 diodes and 1 triode, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, there are 2 ac voltage inputs (1, 2), 2 ac voltage outputs (3, 4), by bidirectional electronic switch S1, S2, the AC chopping regulating circuit of S4 composition, at output 2 end (3, 4) acquisition holds (1 with input 2, 2) synchronous adjustable AC chopping voltage, by bidirectional electronic switch S3, S4, another 1 AC chopping regulating circuit of S2 composition, at output 2 end (3, 4) acquisition holds (1 with input 2, 2) the adjustable AC chopping voltage of antiphase.

[four] appended drawings be the design friendship hand over bridge-type cut Bi bidirectional pressure regulating device main circuit diagram.

[five] embodiment accompanying drawing is known: it is made up of 4 bidirectional electronic switch S1 ~ S4 and control circuit thereof, two electronic switch that 4 bidirectional electronic switch are all made up of 4 diodes and 1 triode, 4 bidirectional electronic switch connect into bridge-type alternating-current chopper circuit, there are 2 ac voltage inputs (1, 2) and 2 AC chopping voltage output ends (3, 4), bidirectional electronic switch S1 is formed by D1 ~ D4 and V1, bidirectional electronic switch S2 is formed by D5 ~ D8 and V2, bidirectional electronic switch S3 is formed by D9 ~ D12 and V3, bidirectional electronic switch S4 is formed by D13 ~ D16 and V4, its operation principle is as follows:

1) bidirectional electronic switch S1 and S2 forms 1 by S1 master control, the AC chopping regulating circuit of S2 afterflow, when the full conducting of bidirectional electronic switch S4 interchange positive-negative half-cycle, 1 input (2) is connected with the short circuit of 1 output (4), bridge-type alternating-current chopper circuit exports 2 ends (3,4) and exports the AC chopping adjustable voltage identical with input 2 ends (1,2) phase place.

2) bidirectional electronic switch S3 and S4 form another 1 by S3 master control, the AC chopping regulating circuit of S4 afterflow, when bidirectional electronic switch S2 exchanges the full conducting of positive-negative half-cycle, 1 input (2) is connected with the short circuit of another 1 output (3), bridge-type interchange is cut Bi circuit and is exported 2 ends (3,4) the output AC chopping adjustable voltage contrary with input 2 ends (1,2) phase place.Therefore, the friendship of accompanying drawing hands over bridge-type copped wave bidirectional pressure regulating device circuit can export the AC chopping adjustable voltage identical and contrary with exchanging input 2 end (1,2) voltage at output 2 end (3,4) simultaneously.As from the foregoing: homophase output AC chopping voltage regulates and completed by 3 full control bidirectional electronic switch S1, S2, S4, and anti-phase output AC chopping voltage regulates and completed by 3 bidirectional electronic switch S3, S4, S2,

The friendship of the design hands over bridge-type copped wave bidirectional pressure regulating device to belong to power electronics AC/AC converter, bridge-type AC chopping bidirectional pressure regulating device is formed by 4 bidirectional electronic switch, regulable control bidirectional electronic switch realizes, the adjustment of AC chopping voltage swing and the control of phase difference 180 degree.It is a kind of AC/AC bridge converter corresponding with DC/AC full-bridge inverter, can fixing for input alternating voltage be changed into export same-phase or antiphase adjustable AC chopping voltage, the AC chopping voltage handing over bridge-type chopper voltage regulator to export 2 ends just can obtain or phase place contrary adjustable alternating voltage identical with AC input voltage waveform same phase after high frequency LC filtering, therefore, it has extensive use value in the equipment such as compensation type AC regulated power supply.

Claims

1. hand over bridge-type copped wave bidirectional pressure regulating device for one kind, be made up of 4 bidirectional electronic switch S1 ~ S4 and adjusting control circuit thereof, it is characterized in that: 4 bidirectional electronic switch S1 ~ S4 are the bidirectional electronic switch be made up of 4 diodes and 1 triode, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, there are 2 ac voltage inputs (1, 2), 2 ac voltage outputs (3, 4), by bidirectional electronic switch S1, S2, the AC chopping regulating circuit of S4 composition, at output 2 end (3, 4) acquisition holds (1 with input 2, 2) synchronous adjustable AC chopping voltage, by bidirectional electronic switch S3, S4, another 1 AC chopping regulating circuit of S2 composition, at output 2 end (3, 4) acquisition holds (1 with input 2, 2) the adjustable AC chopping voltage of antiphase.