JPS55147830A - Igniting circuit of switching element - Google Patents

Igniting circuit of switching element

Info

Publication number
JPS55147830A
JPS55147830A JP5550879A JP5550879A JPS55147830A JP S55147830 A JPS55147830 A JP S55147830A JP 5550879 A JP5550879 A JP 5550879A JP 5550879 A JP5550879 A JP 5550879A JP S55147830 A JPS55147830 A JP S55147830A
Authority
JP
Japan
Prior art keywords
scr1
capacitor
circuit
electrode
diode
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
JP5550879A
Other languages
Japanese (ja)
Inventor
Ichiro Kamitsuma
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing Co 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP5550879A priority Critical patent/JPS55147830A/en
Publication of JPS55147830A publication Critical patent/JPS55147830A/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

Landscapes

  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To simplify a circuit constitution and protect the circuit agaist overvoltage and overcurrent, by connecting an electric valve to the capacitor of the snubber circuit, which is connected to a switching element and protects this element against surge, and by turning on the element above by the discharging current of this capacitor. CONSTITUTION:Gate turn-off thyristor SCR1 of a switch element and diode 3 of an electric valve are provided, and the anode electrode of diode 3 is connected to the anode electrode of SCR1. Capacitor 4 is connected to the cathode electrode of diode 3, and further, capacitor 4 is connected to the cathode electrode of SCR1 through resistance 5. The series circuit of capacitor 4 and resistance 5 is a snubber circuit provided for absorbing the overvoltage applied to SCR1, and transistor TR6 is connected between their connection point J1 and the gate electrode of SCR1. Control signal generating circuit 7 is connected to base electrode 6b of TR6 and the cathode electrode of SCR1.
JP5550879A 1979-05-07 1979-05-07 Igniting circuit of switching element Pending JPS55147830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5550879A JPS55147830A (en) 1979-05-07 1979-05-07 Igniting circuit of switching element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5550879A JPS55147830A (en) 1979-05-07 1979-05-07 Igniting circuit of switching element

Publications (1)

Publication Number Publication Date
JPS55147830A true JPS55147830A (en) 1980-11-18

Family

ID=13000609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5550879A Pending JPS55147830A (en) 1979-05-07 1979-05-07 Igniting circuit of switching element

Country Status (1)

Country Link
JP (1) JPS55147830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10461728B2 (en) 2016-01-24 2019-10-29 Qiaoshi Guo Semi-controllable device driving method and apparatus, and hybrid device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10461728B2 (en) 2016-01-24 2019-10-29 Qiaoshi Guo Semi-controllable device driving method and apparatus, and hybrid device

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