JPS59195838U - Switching element control circuit - Google Patents

Switching element control circuit

Info

Publication number
JPS59195838U
JPS59195838U JP9115083U JP9115083U JPS59195838U JP S59195838 U JPS59195838 U JP S59195838U JP 9115083 U JP9115083 U JP 9115083U JP 9115083 U JP9115083 U JP 9115083U JP S59195838 U JPS59195838 U JP S59195838U
Authority
JP
Japan
Prior art keywords
switching element
photocoupler
control
circuit
control circuit
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
JP9115083U
Other languages
Japanese (ja)
Inventor
幸雄 井上
聡 浜田
謙三 檀上
Original Assignee
株式会社　三社電機製作所
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　三社電機製作所 filed Critical 株式会社　三社電機製作所
Priority to JP9115083U priority Critical patent/JPS59195838U/en
Publication of JPS59195838U publication Critical patent/JPS59195838U/en
Pending legal-status Critical Current

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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図は従来のスイッチング素子の制御回路の回路図、
第２図はこの考案の実施例の回路図である。 ＰＨ１−スイッチング素子制御用ホトカプラ、ＰＨ２−
回路制御用ホトカプラ、ＩＮ−反転器、ＰＲＯ−スイッ
チング素子保護回路、Ｑ４−パワートランジスタ。Figure 1 is a circuit diagram of a conventional switching element control circuit.
FIG. 2 is a circuit diagram of an embodiment of this invention. PH1-Photocoupler for switching element control, PH2-
Photocoupler for circuit control, IN-inverter, PRO-switching element protection circuit, Q4-power transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御パルスをスイッチング素子制御用ホトカプラに入力
し、そのホトカプラの出力でスイッチング素子をオン、
オフ制御するスイッチング素子の制御回路において、前
記制御パルスを入力信号とする反転器と、この反転器の
出力が導かれる回路制御用ホトカプラと、このホトカプ
ラの出力で駆動され、前記制御パルスがオフのとき前記
スイッチング素子に対しスイッチング素子オフ電圧を供
給するスイッチング素子保護回路とを有し、前記制御パ
ルスがオフ状態にあるとき前記スイッチング素子制御用
ホトカプラの動作状態に無関係に前記スイッチング素子
を強制オフ設定することを特徴とするスイッチング素子
の制御回路。The control pulse is input to the photocoupler for controlling the switching element, and the output of the photocoupler turns on the switching element.
In a control circuit for a switching element to be turned off, there is an inverter that receives the control pulse as an input signal, a circuit control photocoupler to which the output of the inverter is guided, and a circuit control photocoupler that is driven by the output of this photocoupler so that the control pulse turns off. and a switching element protection circuit that supplies a switching element off voltage to the switching element when the control pulse is in the OFF state, the switching element is forcibly set to OFF regardless of the operating state of the switching element control photocoupler. A control circuit for a switching element, characterized in that:
JP9115083U 1983-06-13 1983-06-13 Switching element control circuit Pending JPS59195838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9115083U JPS59195838U (en) 1983-06-13 1983-06-13 Switching element control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9115083U JPS59195838U (en) 1983-06-13 1983-06-13 Switching element control circuit

Publications (1)

Publication Number Publication Date
JPS59195838U true JPS59195838U (en) 1984-12-26

Family

ID=30221128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9115083U Pending JPS59195838U (en) 1983-06-13 1983-06-13 Switching element control circuit

Country Status (1)

Country Link
JP (1) JPS59195838U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673926A (en) * 1979-11-20 1981-06-19 Fuji Electric Co Ltd Base driving circuit for power transistor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673926A (en) * 1979-11-20 1981-06-19 Fuji Electric Co Ltd Base driving circuit for power transistor

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