JPS5321599A - Lamp disconnection detecting circuit - Google Patents

Lamp disconnection detecting circuit

Info

Publication number
JPS5321599A
JPS5321599A JP9636376A JP9636376A JPS5321599A JP S5321599 A JPS5321599 A JP S5321599A JP 9636376 A JP9636376 A JP 9636376A JP 9636376 A JP9636376 A JP 9636376A JP S5321599 A JPS5321599 A JP S5321599A
Authority
JP
Japan
Prior art keywords
detecting circuit
disconnection detecting
lamp disconnection
disconnection
lamps
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
JP9636376A
Other languages
Japanese (ja)
Inventor
Toshiyuki Morita
Toshio Nakajima
Osami Sato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9636376A priority Critical patent/JPS5321599A/en
Publication of JPS5321599A publication Critical patent/JPS5321599A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To achieve the improvement in the reliability of display of display boards and control panels using a multiplicity of lamps by monitoring the presence or absence of disconnection of lamps at all times and outputting a disconnection detection signal immediately when any disconnection occurs.
COPYRIGHT: (C)1978,JPO&Japio
JP9636376A 1976-08-12 1976-08-12 Lamp disconnection detecting circuit Pending JPS5321599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9636376A JPS5321599A (en) 1976-08-12 1976-08-12 Lamp disconnection detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9636376A JPS5321599A (en) 1976-08-12 1976-08-12 Lamp disconnection detecting circuit

Publications (1)

Publication Number Publication Date
JPS5321599A true JPS5321599A (en) 1978-02-28

Family

ID=14162895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9636376A Pending JPS5321599A (en) 1976-08-12 1976-08-12 Lamp disconnection detecting circuit

Country Status (1)

Country Link
JP (1) JPS5321599A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046931A1 (en) * 1999-12-21 2001-06-28 Jang Jun Ho Led traffic signal lamp
JP2017200292A (en) * 2016-04-26 2017-11-02 株式会社デンソー Signal transmission circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046931A1 (en) * 1999-12-21 2001-06-28 Jang Jun Ho Led traffic signal lamp
JP2017200292A (en) * 2016-04-26 2017-11-02 株式会社デンソー Signal transmission circuit

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