JPS60129730U

JPS60129730U - Gate circuit of gate turn-off thyristor

Info

Publication number: JPS60129730U
Application number: JP1501184U
Authority: JP
Inventors: 健明朝枝; 油谷　隆司
Original assignee: 三菱電機株式会社
Priority date: 1984-02-07
Filing date: 1984-02-07
Publication date: 1985-08-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のＧＴＯのゲート回路を示す回路図、第２
図は第１図の動作を示す動作波形図、第３図はこの考案
の一実施例によるＧＴＯのゲート回路を示す回路図、第
４図は第３図の動作牽示す動作波形図である。１・・・ゲートターンすフサイリスタ（ＧＴＯ）、２・
・・チョッパ回路、３・・・オンゲート用電源、４・・
・リアクトル、５・・・抵抗、６・・・第１のコンデン
サ、７・・・オンゲート用スイッチ、８・・・充電回路
、９・・・オフゲート回路、３０・・・第２のコンデン
サ、３１・・・ダイオード。なお、図中、同一符号は同
一、または相当部分を示す。第３図第４図　　　　　　−Figure 1 is a circuit diagram showing a conventional GTO gate circuit, Figure 2 is a circuit diagram showing the gate circuit of a conventional GTO.
1 is an operating waveform diagram showing the operation of FIG. 1, FIG. 3 is a circuit diagram showing a gate circuit of a GTO according to an embodiment of the invention, and FIG. 4 is an operating waveform diagram showing the operation of FIG. 3. 1...Gate Turn Futairister (GTO), 2.
... Chopper circuit, 3... On-gate power supply, 4...
・Reactor, 5... Resistor, 6... First capacitor, 7... On-gate switch, 8... Charging circuit, 9... Off-gate circuit, 30... Second capacitor, 31 ···diode. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Figure 3 Figure 4 -

Claims

[Scope of utility model registration request]

an on-gate circuit that supplies an on-gate current to the gate turn-off thyristor; and an off-gate circuit that supplies an off-gate current to the gate turn-off thyristor;
The on-gate circuit includes an on-gate power supply having a constant current control function, a reactor whose input terminal is connected to a first DC output terminal of the on-gate power supply, a resistor, and a first capacitor, one end of which is connected to the reactor. a series connection body connected to the output terminal of the series connection body; a parallel connection body consisting of a diode and a second capacitor connected between the other end of the series connection body and a second DC output terminal of the on-gate power supply; It is equipped with a charging circuit that charges the first and second capacitors, and an on-gate switch whose one end is connected to the output terminal of the above-mentioned accelerator, and an on-gate current flows through the on-gate switch to the gate turn-off thyristor. A gate circuit for a gate turn-off circuit, characterized in that the gate circuit is configured to supply a gate turn-off circuit.