CN104201905B

CN104201905B - AC chopping bidirectional pressure regulating circuit

Info

Publication number: CN104201905B
Application number: CN201410450038.9A
Authority: CN
Inventors: 龚秋声
Original assignee: 龚秋声
Current assignee: Suzhou yunqi Yizhan Technology Service Co., Ltd
Priority date: 2014-08-30
Filing date: 2014-08-30
Publication date: 2019-04-02
Anticipated expiration: 2034-08-30
Also published as: CN104201905A

Abstract

AC chopping bidirectional pressure regulating circuit, it is by 2 series AC power supply (E1, E2), 1 High frequency filter inductance (L), 1 high-frequency filter capacitor (C), inductive load (RL), 1 master control bidirectional electronic switch (S1), 1 afterflow bidirectional electronic switch (S2) and its control circuit composition, 2 power supply (E1, E2) it is provided in series AC chopping voltage, 1 master control bidirectional electronic switch (S1) is by 2 band damper diode (D1, D2 triode (V1), V2) differential concatenation or 4 diodes and 1 triode composition, triode differential concatenation or 4 diodes and 1 triode of 1 afterflow bidirectional electronic switch (S2) by 2 unidirectional thyristor reverse parallel connections or 2 with damper diode form, it is characterized in that having 1 ac output end is 2 friendships The series connection end in galvanic electricity source, the alternating voltage at 2 ends of exchange output can positive pressure regulation and reversed pressure regulation, what it was widely used in two-way exchange adjuster and compensation type AC wave chopping pressure regulation exchanges voltage-stabilizing power supply.

Description

AC chopping bidirectional pressure regulating circuit

[one] the present invention relates to AC/AC to convert basic regulating circuit for technical field, defeated more particularly, to AC chopping voltage Out the exchange at both ends cut control voltage can positive direction output and opposite direction export AC chopping regulating circuit.

[two] the existing AC chopping regulating circuit of background technique mainly has three kinds of AC chopping regulating circuits on textbook, They are all the voltage regulation circuit of chopping with diode and triode master control bidirectional electronic switch, and master control bidirectional electronic switch and Afterflow electronic switch is just the same.Same inventor is better two kinds of voltage regulation circuit of chopping on the ratio textbook of invention in 2007 The cutting control AC voltage adjusting circuit of hybrid device composition, the afterflow bidirectional electronic switch formed with 2 unidirectional thyristor inverse parallels Instead of on textbook exchange voltage regulation circuit of chopping in afterflow bidirectional electronic switch (patent of invention ZL200710137582.8), Since high-power IGBT Module Price is 2-3 times of unidirectional thyristor module, the present invention not only make voltage regulation circuit of chopping at This sharp fall, and unfailing performance improves, lower power consumption.AC chopping regulating circuit is obtained in compensation type AC regulated power supply It must be widely applied, but greatly more alternating current steady voltage plugs require the alternating voltage for adjusting and exporting positive and negative both direction, such as: compensation Formula alternating current steady voltage plug requires negative side's offset voltage when alternating current increases, and positive offset voltage, exchange are required when alternating current reduces The AC voltage regulator that chopper circuit adjusts offset voltage will increase by 2 or 4 paraphase bidirectional electronic switch, change offset voltage Positive antiphase, it is highly desirable to have a kind of AC chopping regulating circuit that can change output voltage 180 degree automatically, there is this friendship Voltage regulation circuit of chopping is flowed, can make that the circuit structure of compensation type AC regulated power supply is simplified, amplitude is depressured under cost, performance indicator It is increased substantially with cost performance.

[three] there is presently no the polar AC/AC transformation of voltage energy auto-changing in 2 ac output ends for summary of the invention Tandem circuit, the purpose of the present invention is the AC chopping pressure regulation electricity of the voltage-phase energy reverse at invention ac output end both ends Road.

AC chopping bidirectional pressure regulating circuit of the invention, it is by 2 series AC power supplys (E1, E2), 1 High frequency filter electricity Feel (L), 1 high-frequency filter capacitor (C), inductive load (RL), 1 master control bidirectional electronic switch (S1), 1 afterflow bidirectional electronic Switch (S2) and its control circuit composition, 2 power supplys (E1, E2) be in series with 3 ends (1,2,3), the offer exchanges of 2 ends (1,2) Copped wave input voltage, the other end (3) are 1 output end of alternating voltage, and master control bidirectional electronic switch (S1) damps two poles by 2 bands Triode (the V1, V2) differential concatenation of pipe (D1, D2) or 4 diodes and 1 triode composition, 1 afterflow bidirectional electronic are opened Close the triode differential concatenation or 4 diodes and 1 of (S2) by 2 unidirectional thyristor reverse parallel connections or 2 with damper diode A triode composition, it is characterised in that: the 1st ac voltage output (3) and the one end AC power source (E1), AC power source (E2) one End, the connection of inductive load one end (RL), the 2nd ac voltage output (4) and the one end High frequency filter inductance (L), High frequency filter electricity Hold the one end (C), inductive load (RL) other end connects, AC power source (E1) other end (1) and master control bidirectional electronic switch (S1) One end connection, master control two-way switch (S1) other end (5) and the one end afterflow bidirectional electronic switch (S2), High frequency filter inductance (L) Other end connection, AC power source (E2) other end (2) and afterflow bidirectional electronic switch (S2) other end, high-frequency filter capacitor (C) Other end connection.

Master control bidirectional electronic switch (S1) of the invention is by 2 diodes and 2 triodes or by 4 diodes and 1 Triode composition.Afterflow bidirectional electronic switch (S2) of the invention is by 2 unidirectional thyristors or by 2 diodes and 2 three Pole pipe is made of 4 diodes and a triode.2 AC power sources (E1, E2) of the invention are obtained from 2 windings of transformer ?.

[four] appended drawings 1 are one of AC chopping bidirectional pressure regulating circuits, and attached drawing 2 is AC chopping bidirectional pressure regulating The two of circuit, attached drawing 3 are the three of AC chopping bidirectional pressure regulating circuit, and attached drawing 4 is the four of AC chopping bidirectional pressure regulating circuit.

[five] specific embodiment attached drawing 1~4 is 4 kinds of AC chopping bidirectional pressure regulating circuits of inventor's invention, they Working principle is mutually similar, and the afterflow bidirectional electronic switch in the AC chopping regulating circuit of preceding 2 kinds of circuits uses 2 unidirectional brilliant locks Pipe is the patent of invention of same inventor, and the AC chopping regulating circuit of rear 2 kinds of circuits is the AC chopping electricity having on textbook Road, this 4 kinds of AC chopping regulating circuits, it is alternating voltage output that they, which are with 5,2 both ends or 4,2 both ends before making the present invention, End, thus export 2 end voltages can only adjusting size and cannot all change the phase of output voltage, inventor is by alternating-current chopper circuit Power supply the series connection of 2 AC power sources is changed to by 1 AC power source, and passed through at the series connection end (3) of 2 AC power sources and chopping voltage LC filtered 1 end (4) output AC chopping voltage (U34) is crossed, just having invented pressure regulation but also can change output voltage phase The AC chopping pressure regulation novel circuit of position, 4 kinds of circuits in attached drawing are all neoteric AC/AC transformation tandem circuits.By 4 attached drawings Known to: they are 2 ends (1,2) alternating voltages by 2 series AC power supplys (E1, E2), are supplied by master control bidirectional electronic switch (S1) and the alternating voltage voltage regulation circuit of chopping of afterflow bidirectional electronic switch (S2) composition, chopper circuit export 2 ends (5,2) voltage U52 obtains the adjustable alternating voltage with input ac voltage same frequency same-phase after the filtering of high frequency LC filter, in 2 ends (4,2) U42。

As voltage U42 > E2, it is connected to 2 ac output ends (3,4) inductive load (RL) or primary winding On alternating voltage, 4 ends, 3 ends that are positive are negative.As voltage U42=E2, it is connected to 2 ac output ends (3,4) inductive load (voltage on RL or primary winding is zero.As voltage U42 < E2, it is connected to 2 ac output ends (3,4) perception It loads the voltage on (RL) or primary winding and changes direction, 3 ends, 4 ends that are positive are negative.The present invention does not use 4,2 ends to connect Inductive load (RL) or primary winding, but 3,4 ends connection inductive load (RL) or primary winding are used, it is real The purpose that twocouese of the invention adjusts alternating voltage is showed.

The AC chopping master control bidirectional electronic switch (S1) that attached drawing 1 and attached drawing 3 use is with 2 diodes and 2 three poles Pipe composition, attached drawing 2 and attached drawing 4 are with 4 diodes and 1 triode composition.Attached drawing 1 and attached drawing 2 use AC chopping afterflow Bidirectional electronic switch (S2) is formed with 2 unidirectional thyristors, and attached drawing 3 is with 2 diodes and 2 triode compositions, attached drawing 2 With 4 diodes and 1 triode composition.

2 AC power sources (E1, E2) of the present invention, with 1 of transformer with tapped winding or 2 winding strings It obtains.Inductive load RL of the invention uses transformer, can be isolated and adjust range of regulation and transformation is secondary and secondary around The polarity of group.

4 kinds of AC chopping bidirectional pressure regulating circuits of the invention, can be widely applied to alternating voltage two-way voltage regulator and The alternating current steady voltage plug of AC chopping offset voltage, they have, and circuit is simple and reliable, at low cost, power factor is high, harmonic wave is few, Continuous stepless, it is contactless, precision is high the advantages that.

Claims

1. a kind of AC chopping bidirectional pressure regulating circuit, it is filtered by 2 series AC power supplys E1 and E2, High frequency filter inductance L, high frequency Wave capacitor C, inductive load RL, master control two-way switch S1, afterflow two-way switch S2 and its control circuit composition, 2 power supply E1 and E2 series connection, 2 power supply ends provide AC chopping input voltage, and power supply intermediate ends are the 1st ac output end, master control two-way switch S1 is made of 2 triode V1 and the V2 differential concatenations with damper diode D1 and D2 or 4 diodes and 1 triode, Be characterized in that: afterflow two-way switch S2 is by 2 thyristor groups at as long as adjusting master switch S1 can be achieved with the electricity of bidirectional pressure regulating Road, AC chopping output voltage exchange with the 2nd defeated again after LC filtering is reduced into and inputs with copped wave with frequency same-phase adjustable voltage Voltage in outlet, which compares, realizes bi-directional voltage pressure regulation, the 1st ac output end (3) and the one end AC power source E1, AC power source E2 One end, the connection of the one end inductive load RL, the 2nd ac output end (4) and the one end High frequency filter inductance L, high-frequency filter capacitor C mono- End, the connection of the inductive load RL other end, the 1st hands over input terminal (1) and the AC power source E1 other end, master control one end two-way switch S1 to connect It connecing, the master control two-way switch S1 other end (5) is connect with the one end afterflow bidirectional electronic switch S2, the High frequency filter inductance L other end, the 2 ac input ends (2) and the AC power source E2 other end, the afterflow two-way switch S2 other end, the high-frequency filter capacitor C other end connect It connects.