JPS57106230A - Snubber circuit - Google Patents

Snubber circuit

Info

Publication number
JPS57106230A
JPS57106230A JP18140280A JP18140280A JPS57106230A JP S57106230 A JPS57106230 A JP S57106230A JP 18140280 A JP18140280 A JP 18140280A JP 18140280 A JP18140280 A JP 18140280A JP S57106230 A JPS57106230 A JP S57106230A
Authority
JP
Japan
Prior art keywords
snubber
capacitor
parallel
snubber diode
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
JP18140280A
Other languages
Japanese (ja)
Inventor
Yukinori Genda
Nagataka Seki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18140280A priority Critical patent/JPS57106230A/en
Publication of JPS57106230A publication Critical patent/JPS57106230A/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
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08144—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in thyristor switches

Landscapes

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

Abstract

PURPOSE:To suppress a spike voltage, which is generated just after turn-off of a GTO, to prevent malfunctions, by connecting a capacitor in parallel to a snubber diode of a circuit where the snubber diode and a snubber capacitor are connected in series. CONSTITUTION:A series circuit consisting of a snubber diode 2 and a snubber capacitor 4 is connected in parallel to a GTO1. A snubber resistance 3 is connected in parallel to the snubber diode 2, and a capacitor 6 is connected in parallel to the snubber diode 2. A spike voltage generated just after turn-off of the GTO1 is suppressed by this capacitor 6 to prevent erroneous ignition of the GTO and the malfunction of a control circuit.
JP18140280A 1980-12-23 1980-12-23 Snubber circuit Pending JPS57106230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18140280A JPS57106230A (en) 1980-12-23 1980-12-23 Snubber circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18140280A JPS57106230A (en) 1980-12-23 1980-12-23 Snubber circuit

Publications (1)

Publication Number Publication Date
JPS57106230A true JPS57106230A (en) 1982-07-02

Family

ID=16100117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18140280A Pending JPS57106230A (en) 1980-12-23 1980-12-23 Snubber circuit

Country Status (1)

Country Link
JP (1) JPS57106230A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110372A (en) * 1982-12-16 1984-06-26 Fuji Electric Co Ltd Semiconductor protecting circuit
CN1041673C (en) * 1995-08-02 1999-01-13 株式会社日立制作所 Electric power converter
US6191804B1 (en) 1997-08-12 2001-02-20 Fujitsu Limited Image forming apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110372A (en) * 1982-12-16 1984-06-26 Fuji Electric Co Ltd Semiconductor protecting circuit
JPH0345627B2 (en) * 1982-12-16 1991-07-11 Fuji Electric Co Ltd
CN1041673C (en) * 1995-08-02 1999-01-13 株式会社日立制作所 Electric power converter
US6191804B1 (en) 1997-08-12 2001-02-20 Fujitsu Limited Image forming apparatus

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