CN204517663U

CN204517663U - A kind of friendship bridge-type copped wave bidirectional pressure regulating device

Info

Publication number: CN204517663U
Application number: CN201520218986.XU
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 friendship bridge-type copped wave bidirectional pressure regulating device, belong 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 2 diodes and 2 triodes, 4 bidirectional electronic switch S1 ~ S4 connect into bridge-type, by bidirectional electronic switch S1, S2, S4 forms the AC chopping regulating circuit that 1 homophase exports, by bidirectional electronic switch S3, S4, 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 of 2 AC chopping voltage output ends (3,4) just can obtain and 2 ac voltage inputs (1,2) the waveform same phase adjustable alternating voltage that also identical or phase place is contrary after 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

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.

Background technology

Present AC chopping regulating circuit 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.

Summary of the invention

The object of 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.

The one of the design hands over bridge-type copped wave bidirectional pressure regulating device, 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 2 diodes and 2 triodes, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, there are 2 ac voltage inputs (1, 2), 2 AC chopping voltage output ends (3, 4), by bidirectional electronic switch S1, S2, the AC chopping regulating circuit of S4 composition, at 2 AC chopping voltage output ends (3, 4) obtain and 2 ac voltage inputs (1, 2) synchronous adjustable AC chopping voltage, by bidirectional electronic switch S3, S4, another 1 AC chopping regulating circuit of S2 composition, at 2 AC chopping voltage output ends (3, 4) obtain and 2 ac voltage inputs (1, 2) the adjustable AC chopping voltage of antiphase.

Accompanying drawing explanation

Accompanying drawing is that the friendship of the design hands over bridge-type to cut Bi bidirectional pressure regulating device main circuit diagram.

Embodiment

Accompanying drawing is known: it is made up of 4 bidirectional electronic switch S1 ~ S4 and control circuit thereof, the bidirectional electronic switch that 4 bidirectional electronic switch are all made up of 2 diodes and 2 triodes, 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), by D1, D2 and V1, V2 forms bidirectional electronic switch S1, by D3, D4 and V3, V4 forms bidirectional electronic switch S2, by D5, D6 and V5, V6 forms bidirectional electronic switch S3, by D7, D8 and V7, V8 forms bidirectional electronic switch S4, 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 ac voltage input (2) is connected with the short circuit of 1 AC chopping voltage output end (4), and 2 AC chopping voltage output ends (3,4) of bridge-type alternating-current chopper circuit export the AC chopping adjustable voltage identical with 2 ac voltage inputs (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 the full conducting of bidirectional electronic switch S2 interchange positive-negative half-cycle, 1 ac voltage input (2) is connected with the short circuit of another 1 alternating-current chopper circuit output (3), and bridge-type exchanges 2 the AC chopping voltage output ends (3,4) cutting Bi circuit and exports the AC chopping adjustable voltage contrary with 2 ac voltage inputs (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 2 ac voltage inputs (1,2) voltage at 2 AC chopping voltage output ends (3,4) simultaneously.As from the foregoing: the AC chopping voltage-regulation that homophase exports is completed by 3 bidirectional electronic switch S1, S2, S4, and the AC chopping voltage-regulation of anti-phase output is 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, form bridge-type AC chopping bidirectional pressure regulating device 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, bridge-type chopper voltage regulator is handed over to export the AC chopping voltage of 2 ends, the adjustable alternating voltage contrary with AC input voltage waveform same phase also identical or phase place just can be obtained 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 2 diodes and 2 triodes, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, there are 2 ac voltage inputs (1, 2), 2 AC chopping voltage output ends (3, 4), by bidirectional electronic switch S1, S2, the AC chopping regulating circuit of S4 composition, at 2 AC chopping voltage output ends (3, 4) obtain and 2 ac voltage inputs (1, 2) synchronous adjustable AC chopping voltage, by bidirectional electronic switch S3, S4, another 1 AC chopping regulating circuit of S2 composition, at 2 AC chopping voltage output ends (3, 4) obtain and 2 ac voltage inputs (1, 2) the adjustable AC chopping voltage of antiphase.