JPS5899938U - gate drive circuit - Google Patents
gate drive circuitInfo
- 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
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
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)
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.
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) |
-
1981
- 1981-12-24 JP JP19638181U patent/JPS5899938U/en active Pending
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