JPS6412487U - - Google Patents

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Publication number
JPS6412487U
JPS6412487U JP10632587U JP10632587U JPS6412487U JP S6412487 U JPS6412487 U JP S6412487U JP 10632587 U JP10632587 U JP 10632587U JP 10632587 U JP10632587 U JP 10632587U JP S6412487 U JPS6412487 U JP S6412487U
Authority
JP
Japan
Prior art keywords
switching transistor
overvoltage protection
collector
circuit
emitter
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
JP10632587U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP10632587U priority Critical patent/JPS6412487U/ja
Publication of JPS6412487U publication Critical patent/JPS6412487U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案によるスイツチングトランジス
タの過電圧保護回路の一実施例を示す構成図、第
２図は従来のスイツチングトランジスタの過電圧
保護回路の一例を示す構成図である。 ２……スイツチングトランジスタ、３……ツエ
ナーダイオード、４……抵抗器、５……トランジ
スタ。 FIG. 1 is a block diagram showing an embodiment of an overvoltage protection circuit for a switching transistor according to the present invention, and FIG. 2 is a block diagram showing an example of a conventional overvoltage protection circuit for a switching transistor. 2... Switching transistor, 3... Zener diode, 4... Resistor, 5... Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] スイツチングトランジスタのコレクタ・エミツ
タ間過電圧保護回路において、前記スイツチング
トランジスタのコレクタ・エミツタ間にツエナー
ダイオードと抵抗器およびトランジスタの直列回
路によるコンパレータ回路を挿入し、このコンパ
レータ回路の出力を前記スイツチングトランジス
タの制御端子に接続したことを特徴とするスイツ
チングトランジスタの過電圧保護回路。 In a collector-emitter overvoltage protection circuit for a switching transistor, a comparator circuit consisting of a series circuit of a Zener diode, a resistor, and a transistor is inserted between the collector and emitter of the switching transistor, and the output of this comparator circuit is connected to the switching transistor. An overvoltage protection circuit for a switching transistor, characterized in that the switching transistor is connected to a control terminal of the switching transistor.
JP10632587U 1987-07-13 1987-07-13 Pending JPS6412487U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10632587U JPS6412487U (en) 1987-07-13 1987-07-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10632587U JPS6412487U (en) 1987-07-13 1987-07-13

Publications (1)

Publication Number Publication Date
JPS6412487U true JPS6412487U (en) 1989-01-23

Family

ID=31339728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10632587U Pending JPS6412487U (en) 1987-07-13 1987-07-13

Country Status (1)

Country Link
JP (1) JPS6412487U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039207A1 (en) * 2001-11-01 2003-05-08 Harison Toshiba Lighting Corporation Discharging lamp apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552354A (en) * 1978-06-20 1980-01-09 Sanyo Electric Co Ltd Power circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552354A (en) * 1978-06-20 1980-01-09 Sanyo Electric Co Ltd Power circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039207A1 (en) * 2001-11-01 2003-05-08 Harison Toshiba Lighting Corporation Discharging lamp apparatus

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