JPS59122789U - Switching transistor protection circuit - Google Patents

Switching transistor protection circuit

Info

Publication number
JPS59122789U
JPS59122789U JP1706283U JP1706283U JPS59122789U JP S59122789 U JPS59122789 U JP S59122789U JP 1706283 U JP1706283 U JP 1706283U JP 1706283 U JP1706283 U JP 1706283U JP S59122789 U JPS59122789 U JP S59122789U
Authority
JP
Japan
Prior art keywords
protection circuit
transformer
switching transistor
primary winding
transistor protection
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
JP1706283U
Other languages
Japanese (ja)
Inventor
竹田　唱一
Original Assignee
エムケ−精工株式会社
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 エムケ−精工株式会社 filed Critical エムケ−精工株式会社
Priority to JP1706283U priority Critical patent/JPS59122789U/en
Publication of JPS59122789U publication Critical patent/JPS59122789U/en
Pending legal-status Critical Current

Links

Landscapes

  • Power Conversion In General (AREA)
  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (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) [Abstract] 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 the drawing]

第１図はこの考案の電気回路図、第２図、第３図は特性
図である。 １はトランス、３．４．６はトランジスタ、ＺＤＩはツ
ェナーダイオード。FIG. 1 is an electric circuit diagram of this invention, and FIGS. 2 and 3 are characteristic diagrams. 1 is a transformer, 3.4.6 is a transistor, and ZDI is a Zener diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被駆動回路にドライブ信号を伝達するトランスと、この
トランスの一次巻線に互いのコレクターを接続され、か
つ互いのエミッターに電源電圧を与えられると共に駆動
信号を入力させる互いのベースに電源と直列にツェナダ
イオードを接続したトランジスタと、トランスの一次巻
線にダイオードを介して接続されるトランジスタをベー
ス、エミッタ間に接続したツェナダイオードにより制御
させトランスの一次巻線の電圧を抑制して成るスイッチ
ングトランジスタの保護回路。A transformer transmits a drive signal to a driven circuit, and each collector is connected to the primary winding of this transformer, and each emitter is supplied with a power supply voltage, and each base is connected in series with a power supply to which the drive signal is input. A switching transistor consisting of a transistor connected to a Zener diode and a transistor connected to the primary winding of the transformer via a diode, which is controlled by the Zener diode connected between the base and emitter to suppress the voltage of the primary winding of the transformer. protection circuit.
JP1706283U 1983-02-07 1983-02-07 Switching transistor protection circuit Pending JPS59122789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1706283U JPS59122789U (en) 1983-02-07 1983-02-07 Switching transistor protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1706283U JPS59122789U (en) 1983-02-07 1983-02-07 Switching transistor protection circuit

Publications (1)

Publication Number Publication Date
JPS59122789U true JPS59122789U (en) 1984-08-18

Family

ID=30148305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1706283U Pending JPS59122789U (en) 1983-02-07 1983-02-07 Switching transistor protection circuit

Country Status (1)

Country Link
JP (1) JPS59122789U (en)

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