CN204707038U

CN204707038U - Hand over bridge-type copped wave bidirectional pressure regulating device

Info

Publication number: CN204707038U
Application number: CN201520221318.2U
Authority: CN
Inventors: 龚秋声
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-06
Filing date: 2015-04-06
Publication date: 2015-10-14
Anticipated expiration: 2025-04-06

Abstract

Bridge-type copped wave bidirectional pressure regulating device is handed over to belong to power electronics AC/AC converter, bidirectional electronic switch S1 ~ the S4 connecting into bridge-type by 4 and adjusting control circuit thereof form, bidirectional electronic switch S1, S4 is connected to by 1 triode the bidirectional electronic switch that 4 diode bridge rectifications export 2 ends, bidirectional electronic switch S2, the bidirectional electronic switch that S3 is made up of 2 unidirectional thyristor reverse parallel connections, S1 and S2 is connected to alternating voltage 1 input (1), by bidirectional electronic switch S1, S2, 1 AC chopping regulating circuit of S4 composition, obtain the adjustable AC chopping voltage that homophase exports.Another 1 the AC chopping regulating circuit be made up of bidirectional electronic switch S3, S4, S2, obtains anti-phase adjustable AC chopping voltage.Hand over the chopping voltage of bridge-type two-way voltage regulator 2 AC chopping voltage output ends after LC filtering, obtain two-way adjustable alternating voltage, it has extensive use at equipment such as compensation alternating current steady voltage plugs and is worth.

Description

Hand over 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 2 bidirectional electronic switch to substitute has centre tapped autotransformer can reduce friendship bridge-type two-way pressurizer volume and weight, Jie Sheng Copper material and steel.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, is made up of, it is characterized in that: 2 bidirectional electronic switch S1 4 bidirectional electronic switch S1 ~ S4 and adjusting control circuit thereof, S3 is connected to by 1 transistor collector and emitter the bidirectional electronic switch that 4 diode bridge rectifications export 2 ends, another 2 bidirectional electronic switch S2, the bidirectional electronic switch that S4 is made up of 2 unidirectional thyristor reverse parallel connections, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, have 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.

[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, 2 bidirectional electronic switch S1, S3 is connected to by 1 transistor collector and emitter the bidirectional electronic switch that 4 diode bridge rectifications export 2 ends, another 2 bidirectional electronic switch S2, two electronic switch that S4 is made up of 2 unidirectional brilliant pipe reverse parallel connections, 4 bidirectional electronic switch S1 ~ S4 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 S3 is formed by D5 ~ D8 and V2, by V3, V4, composition bidirectional electronic switch S2, by V5, V6 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 bridge-type alternating-current chopper circuit exports 2 ends (3,4) and exports 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 AC chopping voltage output end (3), and bridge-type interchange is cut Bi circuit and is exported 2 ends (3,4) the output 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 defeated 2 ends of alternating voltage (1,2) voltage at 2 AC chopping voltage output ends (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, 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 change fixing for input alternating voltage 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.The design adopts 2 bidirectional electronic switch to substitute has centre tapped autotransformer can reduce friendship bridge-type two-way pressurizer volume and weight, Jie Sheng Copper material and steel.It has extensive use and is worth in the equipment such as compensation type AC regulated power supply.

Claims

1. hand 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: 2 bidirectional electronic switch S1, S3 is connected to by 1 transistor collector and emitter the bidirectional electronic switch that 4 diode bridge rectifications export 2 ends, another 2 bidirectional electronic switch S2, the bidirectional electronic switch that S4 is made up of 2 unidirectional thyristor reverse parallel connections, 4 bidirectional electronic switch S1 ~ S4 connect into bridge circuit, have 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.