JPS5585140A - Semiconductor dc current switch circuit - Google Patents

Semiconductor dc current switch circuit

Info

Publication number
JPS5585140A
JPS5585140A JP15740978A JP15740978A JPS5585140A JP S5585140 A JPS5585140 A JP S5585140A JP 15740978 A JP15740978 A JP 15740978A JP 15740978 A JP15740978 A JP 15740978A JP S5585140 A JPS5585140 A JP S5585140A
Authority
JP
Japan
Prior art keywords
gto
transistor
gate
semiconductor
cathode
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
JP15740978A
Other languages
Japanese (ja)
Inventor
Shigeo Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15740978A priority Critical patent/JPS5585140A/en
Publication of JPS5585140A publication Critical patent/JPS5585140A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage

Abstract

PURPOSE:To prevent the malfunction at cut-off by short circuit between the gate and cathode of GTO through the use of anode voltage when GTO is OFF, in the semiconductor DC current switch circuit using gate turn off thyristor GTO. CONSTITUTION:Before the input signal is inputted to the input terminals 1, 2, GTO 8 is in OFF state and the transistor 6 is in ON state with the current flowing via the resistors 16, 13, 14, and the part between the cathode and gate of GTO 8 is shortened. When the turn on signal is fed, the transistor 5 is ON, and transistor 6 is OFF, and the input signal is given to the gate of GTO 8 and current flows to the cathode into ON, and charge is stored to the capacitor 18. When input signal is absent, the transistor 5 is OFF, the charge of the capacitor 18 flows via the transistor 6 and thyristor 7, GTO 8 is cut off and the dV/dt characteristics can remarkably be increased.
JP15740978A 1978-12-22 1978-12-22 Semiconductor dc current switch circuit Pending JPS5585140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15740978A JPS5585140A (en) 1978-12-22 1978-12-22 Semiconductor dc current switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15740978A JPS5585140A (en) 1978-12-22 1978-12-22 Semiconductor dc current switch circuit

Publications (1)

Publication Number Publication Date
JPS5585140A true JPS5585140A (en) 1980-06-26

Family

ID=15648992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15740978A Pending JPS5585140A (en) 1978-12-22 1978-12-22 Semiconductor dc current switch circuit

Country Status (1)

Country Link
JP (1) JPS5585140A (en)

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