JPS5259448A - Circuit for detecting disconnection of lamp - Google Patents

Circuit for detecting disconnection of lamp

Info

Publication number
JPS5259448A
JPS5259448A JP13290375A JP13290375A JPS5259448A JP S5259448 A JPS5259448 A JP S5259448A JP 13290375 A JP13290375 A JP 13290375A JP 13290375 A JP13290375 A JP 13290375A JP S5259448 A JPS5259448 A JP S5259448A
Authority
JP
Japan
Prior art keywords
lamp
circuit
detecting disconnection
disconnection
detecting
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
JP13290375A
Other languages
Japanese (ja)
Inventor
Kimio Inaba
Tatsuo Iwasaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13290375A priority Critical patent/JPS5259448A/en
Publication of JPS5259448A publication Critical patent/JPS5259448A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

PURPOSE: To provide a circuit for detecting disconnection of lamp, which enables to detect disconnection of lamp of hall lantern, from the machine room of elevator, with ease and in a short period of time.
COPYRIGHT: (C)1977,JPO&Japio
JP13290375A 1975-11-07 1975-11-07 Circuit for detecting disconnection of lamp Pending JPS5259448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13290375A JPS5259448A (en) 1975-11-07 1975-11-07 Circuit for detecting disconnection of lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13290375A JPS5259448A (en) 1975-11-07 1975-11-07 Circuit for detecting disconnection of lamp

Publications (1)

Publication Number Publication Date
JPS5259448A true JPS5259448A (en) 1977-05-16

Family

ID=15092224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13290375A Pending JPS5259448A (en) 1975-11-07 1975-11-07 Circuit for detecting disconnection of lamp

Country Status (1)

Country Link
JP (1) JPS5259448A (en)

Similar Documents

Publication Publication Date Title
JPS5263036A (en) Full addition and subtraction circuit
JPS5220681A (en) Fluorescent lamp illumination device
JPS51114989A (en) Oxygen depletion sensor
JPS5226827A (en) Scanning exposure type copying machine
JPS5259448A (en) Circuit for detecting disconnection of lamp
JPS5277347A (en) Operating system for elevator
JPS524896A (en) Gas detector
JPS522490A (en) Explosion-proof monitor system
JPS5280684A (en) Illuminating device
JPS528877A (en) Object detector unit
JPS5252394A (en) Transmission type smoke detector
JPS5229061A (en) Display device for elevator
JPS5239234A (en) Counter-weight for elevators
JPS5235056A (en) Signalling system for elevator
JPS5220066A (en) Current detecting circuit
JPS527547A (en) Parallel elevator control system
JPS524897A (en) Gas detector
JPS51125977A (en) Illuminator
JPS5220545A (en) Elevator cage
JPS5269137A (en) Room lamp
JPS51116408A (en) An automatically selected operation sequence circuit for compressor
JPS5239238A (en) Selector tape for elevator
JPS5218616A (en) Signal lamp control circuit
JPS5215227A (en) Automatic drawing machine
JPS51132732A (en) False-information detection unit