JPS5899938U - gate drive circuit - Google Patents

gate drive circuit

Info

Publication number
JPS5899938U
JPS5899938U JP19638181U JP19638181U JPS5899938U JP S5899938 U JPS5899938 U JP S5899938U JP 19638181 U JP19638181 U JP 19638181U JP 19638181 U JP19638181 U JP 19638181U JP S5899938 U JPS5899938 U JP S5899938U
Authority
JP
Japan
Prior art keywords
gate
switching element
drive circuit
semiconductor element
turned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19638181U
Other languages
Japanese (ja)
Inventor
速水 一夫
康夫 片岡
Original Assignee
株式会社明電舎
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社明電舎 filed Critical 株式会社明電舎
Priority to JP19638181U priority Critical patent/JPS5899938U/en
Publication of JPS5899938U publication Critical patent/JPS5899938U/en
Pending legal-status Critical Current

Links

Landscapes

  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第1゛図は従来のゲートドライブ回路図、第2図は第1
図の回路を説明する為の電流特性図、第3図は本考案の
一実施例を示す回路図である。 ′  1・・・・・・第1の直流電源、2・・・・・・
GTo、3・・・・・・第1の抵抗、4・・・・・・第
1のトラン、ジスタ、5・・・・・・第2の抵抗、6・
・・・・・第1のコンデンサ、8・・・・・・第2のコ
ンデンサ、9・・・・・・第2の直流電源、10・・・
・・・SCR,’l l・・・・・・第2のトランジス
タ、12・・・・・・第3のコンデンサ、13・・・・
・・第4のコンデンサ、14・・・・・・第3のトラン
ジスタ、15・・・・・・ダイオード、16・・・・・
・第3の抵抗。
Figure 1 is a conventional gate drive circuit diagram, Figure 2 is a diagram of a conventional gate drive circuit.
FIG. 3 is a current characteristic diagram for explaining the circuit shown in the figure, and FIG. 3 is a circuit diagram showing an embodiment of the present invention. ' 1...First DC power supply, 2...
GTo, 3...first resistor, 4...first transformer, transistor, 5...second resistor, 6...
...First capacitor, 8...Second capacitor, 9...Second DC power supply, 10...
...SCR,'l l...Second transistor, 12...Third capacitor, 13...
...Fourth capacitor, 14...Third transistor, 15...Diode, 16...
・Third resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ゲート制御半導体素子と、このゲート制御半導体素子の
ゲートにゲート電流を供給するオンゲート電流供給路に
介挿されオン時にゲート制御半導体素子のゲートにオー
ン電流を通流させる第1スイツチング素子と、前記ゲー
ト制御半導体素子にオフゲート電流を供給するオフゲー
ト電流供給路に介挿されオン時にゲート制御半導体素子
にオフ電流を通流させる第2スイツチング素子と、前記
オンゲート電流供給路に設けられ第1スイツチング素子
と並列に設けられたコンデンサと、前記コンデンサの一
端と第2スイツチング素子のカソード間に接続され、前
記ゲート制御半導体素子がオフされた後に前記コンデン
サの充電電荷を第2スイツチング素子に印加させて第2
スイツチング素子をオフさせる第3スイツチング素子と
を備えたゲートドライブ回路。
a first switching element that is inserted in an on-gate current supply path that supplies a gate current to the gate of the gate-controlled semiconductor element and causes an on-state current to flow through the gate of the gate-controlled semiconductor element when turned on; a second switching element inserted in the off-gate current supply path for supplying off-gate current to the control semiconductor element and causing off-state current to flow through the gate control semiconductor element when turned on; and a second switching element provided in the on-gate current supply path in parallel with the first switching element. and a capacitor connected between one end of the capacitor and the cathode of a second switching element, and after the gate control semiconductor element is turned off, the charge of the capacitor is applied to the second switching element to switch the second switching element to the second switching element.
A gate drive circuit comprising a third switching element that turns off the switching element.
JP19638181U 1981-12-24 1981-12-24 gate drive circuit Pending JPS5899938U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19638181U JPS5899938U (en) 1981-12-24 1981-12-24 gate drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19638181U JPS5899938U (en) 1981-12-24 1981-12-24 gate drive circuit

Publications (1)

Publication Number Publication Date
JPS5899938U true JPS5899938U (en) 1983-07-07

Family

ID=33307744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19638181U Pending JPS5899938U (en) 1981-12-24 1981-12-24 gate drive circuit

Country Status (1)

Country Link
JP (1) JPS5899938U (en)

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