JPS6110041U - Load drive circuit with short protection - Google Patents

Load drive circuit with short protection

Info

Publication number
JPS6110041U
JPS6110041U JP9312484U JP9312484U JPS6110041U JP S6110041 U JPS6110041 U JP S6110041U JP 9312484 U JP9312484 U JP 9312484U JP 9312484 U JP9312484 U JP 9312484U JP S6110041 U JPS6110041 U JP S6110041U
Authority
JP
Japan
Prior art keywords
transistor
load
drive circuit
resistor
turned
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.)
Granted
Application number
JP9312484U
Other languages
Japanese (ja)
Other versions
JPH0317470Y2 (en
Inventor
健一 木下
Original Assignee
富士通テン株式会社
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 富士通テン株式会社 filed Critical 富士通テン株式会社
Priority to JP9312484U priority Critical patent/JPS6110041U/en
Publication of JPS6110041U publication Critical patent/JPS6110041U/en
Application granted granted Critical
Publication of JPH0317470Y2 publication Critical patent/JPH0317470Y2/ja
Granted legal-status Critical Current

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  • Protection Of Static Devices (AREA)
  • Electronic Switches (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) [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 the drawing]

第１図は本考案の実施例の電気回路図、第２図は従来の
ショート保護付負荷駆動解路の電気回路図である。 Ｒ１〜Ｒ８は抵抗、ＴＲエ〜ＴＲ３はトランジスタ、Ｄ
はダイオード、ＲＤは負荷である。FIG. 1 is an electrical circuit diagram of an embodiment of the present invention, and FIG. 2 is an electrical circuit diagram of a conventional load drive release circuit with short circuit protection. R1 to R8 are resistors, TRe to TR3 are transistors, D
is a diode, and RD is a load.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 起動信号によりオン、オフされる第１のトランジスタと
、該第１のトランジスタがオンすることによりオンし電
源から負荷に負荷電流を供給する第２のトランジスタと
、前記電源と負荷との間に直列に接続された第１、第２
、第３の抵抗から成る直列回路と、該直列回路の第１、
第２の抵抗の接続点にベースが接続されコレクタとエミ
ツタが前記第２のトランジスタのベースと前記電源に接
続された第３のトランジスタと、アノードが前記電源と
前記第１のトランジスタの主電流入力端子に接続されカ
ソードが前記直列回路の第２、第３の抵抗の接続点に接
続されたダイオードとを具備したことを特徴とするショ
ート保護付負荷駆動回路。A first transistor that is turned on and off by a start signal, a second transistor that is turned on when the first transistor is turned on and supplies a load current from the power source to the load, and a transistor connected in series between the power source and the load. 1st, 2nd connected to
, a series circuit consisting of a third resistor, and a first resistor of the series circuit;
a third transistor whose base is connected to the connection point of the second resistor, whose collector and emitter are connected to the base of the second transistor and the power supply; and whose anode is the main current input of the power supply and the first transistor. 1. A load drive circuit with short circuit protection, comprising: a diode connected to the terminal and having a cathode connected to a connection point between the second and third resistors of the series circuit.
JP9312484U 1984-06-21 1984-06-21 Load drive circuit with short protection Granted JPS6110041U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9312484U JPS6110041U (en) 1984-06-21 1984-06-21 Load drive circuit with short protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9312484U JPS6110041U (en) 1984-06-21 1984-06-21 Load drive circuit with short protection

Publications (2)

Publication Number Publication Date
JPS6110041U true JPS6110041U (en) 1986-01-21
JPH0317470Y2 JPH0317470Y2 (en) 1991-04-12

Family

ID=30650518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9312484U Granted JPS6110041U (en) 1984-06-21 1984-06-21 Load drive circuit with short protection

Country Status (1)

Country Link
JP (1) JPS6110041U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01178270U (en) * 1988-06-06 1989-12-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01178270U (en) * 1988-06-06 1989-12-20

Also Published As

Publication number Publication date
JPH0317470Y2 (en) 1991-04-12

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