CN204131406U

CN204131406U - A kind of AC chopping bidirectional pressure regulating device

Info

Publication number: CN204131406U
Application number: CN201420513511.9U
Authority: CN
Inventors: 龚秋声
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-30
Filing date: 2014-08-30
Publication date: 2015-01-28
Anticipated expiration: 2024-08-30

Abstract

A kind of AC chopping bidirectional pressure regulating device, it provides 2 series AC power supply E1 by transformer 2 windings, E2, High frequency filter inductance L, high-frequency filter capacitor C, inductive load RL, master control bidirectional electronic switch S1, afterflow bidirectional electronic switch S2 and control circuit composition thereof, by 2 power supply E1, E2 series connection provides AC chopping voltage, master control bidirectional electronic switch S1 is by 2 diode D1, D2 and 2 triode V1, V2 forms, afterflow bidirectional electronic switch S2 is by another 2 diode D3, D4 and another 2 triode (V3, V4 forms, S1 and S2 forms known AC chopping regulating circuit, it is characterized in that 2 bidirectional electronic switch are by being all made up of 2 diodes and 2 triodes, 1 ac output end is had to be the series connection end (3) of 2 AC power, exchange output 2 end (3, 4) bidirectional modulation voltage is obtained, what it was widely used in alternating-current bidirectional adjuster and the pressure regulation of alternating-current chopping compensating type AC chopping exchanges steady device.

Description

A kind of AC chopping bidirectional pressure regulating device

[one] technical field the utility model relates to AC/AC and converts basic voltage regulator, especially relates to the voltage regulator of AC chopping bidirectional pressure regulating circuit.

[two] the existing AC chopping regulating circuit of background technology mainly contains 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 just the same.The cutting control AC voltage adjusting circuit of the better two kinds of hybrid devices composition of same inventor voltage regulation circuit of chopping on the ratio textbook of invention in 2007, the afterflow bidirectional electronic switch (patent of invention ZL200710137582.8) textbook exchanged in voltage regulation circuit of chopping is instead of with the afterflow bidirectional electronic switch of 2 unidirectional thyristor inverse parallels composition, due to 2-3 times that high-power IGBT Module Price is unidirectional thyristor module, the present invention is applied and is not only made the cost of voltage regulation circuit of chopping significantly decline in high power module compensation type ac voltage stabilizer, and unfailing performance improves, lower power consumption.

AC chopping regulating circuit adjuster obtains extensive use at compensation type AC regulated power supply, but compensation type AC regulated power supply requires that when civil power raises negative side's bucking voltage regulates, require that when civil power reduces forward bucking voltage regulates, existing alternating-current chopper circuit pressure regulation can only provide the bucking voltage in 1 direction, there is provided bidirectional compensating voltage must increase by 2 or 4 bidirectional electronic switch paraphase, change the positive antiphase of bucking voltage, wish very much a kind of AC chopping regulating circuit bidirectional pressure regulating device that automatically can change output voltage 180 degree of phase places, there is this AC chopping regulating circuit voltage regulator, just can make alternating-current chopping compensating type alternating current steady voltage plug designs simplification, amplitude step-down under cost, and performance index and cost performance increase substantially.

[three] summary of the invention the purpose of this utility model designs a kind of AC chopping bidirectional pressure regulating device.

AC chopping bidirectional pressure regulating device of the present utility model, 2 series AC power supply E1 that it is provided by transformer T winding, E2, High frequency filter inductance L, high-frequency filter capacitor C, inductive load RL, master control bidirectional electronic switch S1, 1 afterflow bidirectional electronic switch S2 and control circuit composition thereof, 2 power supply E1, E2 is in series with 3 ends (1,2, 3), 2 ends (1, 2) provide AC chopping input voltage, the other end (3) is alternating voltage 1 output, and AC chopping master control bidirectional electronic switch S1 is by 2 diode D1, D2 and 2 triode V1, V2 forms, and AC chopping afterflow bidirectional electronic switch S2 is by another 2 diode D3, D4 and another 2 triode V3, V4 forms, and it is characterized in that: the 1st ac voltage output (3) and AC power E1 one end, AC power E2 one end, inductive load RL one end connects, the 2nd ac voltage output (4) and High frequency filter inductance L one end, high-frequency filter capacitor C one end, the inductive load RL other end connects, and the AC power E1 other end (1) is connected with master control bidirectional electronic switch S1 one end, the master control bidirectional switch S1 other end (5) and afterflow bidirectional electronic switch S2 one end, the High frequency filter inductance L other end connects, the AC power E2 other end (2) and the afterflow bidirectional electronic switch S2 other end, the high-frequency filter capacitor C other end connects.

The inductive load RL of the design be connected to provided by transformer T winding 2 AC power E1, E2 series side (3) and High frequency filter inductance L, between high-frequency filter capacitor C link (4), AC chopping master control bidirectional electronic switch S1 and afterflow bidirectional electronic switch S2 is made up of 2 diodes and 2 triodes respectively.

[four] appended drawings 1 is the voltage-regulation principle circuit of AC chopping bidirectional pressure regulating device, and accompanying drawing 2 is unsteady flow copped wave bidirectional pressure regulating device main circuits that transformer T winding provides 2 AC power E1, E2.

[five] embodiment accompanying drawing 1 and accompanying drawing 2 circuit working as follows:

2 diodes D1, D2 and 2 triodes V1, V2 form copped wave master control bidirectional electronic switch S1, another 2 diodes D3, D4 and another 2 triodes V3, V4 form copped wave afterflow bidirectional electronic switch S2, known circuit alternating current input power supplying E1+E2 being implemented to AC chopping of S1 and S2 composition, it exports chopping voltage U52 at 5 ends and 2 ends, after the high-frequency filter circuit filtering that inductance L and electric capacity C form, export the adjustable alternating voltage U42 also identical with inputting chopper circuit frequency same phase between 4 ends with 2 ends.As voltage U 42 > E2, be connected to the inductive load voltage of 4 ends and 3 ends: 4 ends for just, 3 ends are Fu ， And and by regulating master control bidirectional electronic switch S1 make-to-break ratio energy regulation output 2 end (4,3) voltage swing.As voltage U 42 < E2 couple, be connected to 4 ends contrary with the inductive load voltage of 3 ends, 4 ends are negative, and 3 ends are Zheng ， And and also can regulation output 2 end (4,3) voltage swing by adjustment master control bidirectional electronic switch S1 make-to-break ratio.As voltage U 42=U43, the inductive load voltage being connected to 4 ends and 3 ends is zero.

It can thus be appreciated that: AC chopping bidirectional pressure regulating device, in the adjustable voltage of 2 ac output ends (3,4) exportable phase difference 180 degree, realizes the object of the utility model AC chopping bidirectional pressure regulating.

The utility model can be widely used in needs two-way exchange voltage adjusting device and AC chopping regulating compensation formula AC voltage regulator, and they have, and circuit structure is simple and reliable, cost is low, power factor is high, harmonic wave is few, continuous stepless, contactless, precision advantages of higher.

Claims

1. an AC chopping bidirectional pressure regulating device, 2 series AC power supply E1 that it is provided by transformer T winding, E2, High frequency filter inductance L, high-frequency filter capacitor C, inductive load RL, master control bidirectional electronic switch S1, 1 afterflow bidirectional electronic switch S2 and control circuit composition thereof, 2 power supply E1, E2 is in series with 3 ends (1,2, 3), 2 ends (1, 2) provide AC chopping input voltage, the other end (3) is alternating voltage 1 output, and AC chopping master control bidirectional electronic switch S1 is by 2 diode D1, D2 and 2 triode V1, V2 forms, and AC chopping afterflow bidirectional electronic switch S2 is by another 2 diode D3, D4 and another 2 triode V3, V4 forms, and it is characterized in that: the 1st ac voltage output (3) and AC power E1 one end, AC power E2 one end, inductive load RL one end connects, the 2nd ac voltage output (4) and High frequency filter inductance L one end, high-frequency filter capacitor C one end, the inductive load RL other end connects, and the AC power E1 other end (1) is connected with master control bidirectional electronic switch S1 one end, the master control bidirectional switch S1 other end (5) and afterflow bidirectional electronic switch S2 one end, the High frequency filter inductance L other end connects, the AC power E2 other end (2) and the afterflow bidirectional electronic switch S2 other end, the high-frequency filter capacitor C other end connects.

2. a kind of AC chopping bidirectional pressure regulating device according to claim 1, it is characterized in that: inductive load RL be connected to provided by transformer T winding 2 AC power E1, E2 series side (3) and High frequency filter inductance L, between high-frequency filter capacitor C link (4), AC chopping master control bidirectional electronic switch S1 and afterflow bidirectional electronic switch S2 is made up of 2 diodes and 2 triodes.