JPS54133765A - Circuit for lighting lamps - Google Patents

Circuit for lighting lamps

Info

Publication number
JPS54133765A
JPS54133765A JP4120578A JP4120578A JPS54133765A JP S54133765 A JPS54133765 A JP S54133765A JP 4120578 A JP4120578 A JP 4120578A JP 4120578 A JP4120578 A JP 4120578A JP S54133765 A JPS54133765 A JP S54133765A
Authority
JP
Japan
Prior art keywords
gate
electric source
activated
lamps
signal
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
JP4120578A
Other languages
Japanese (ja)
Inventor
Atsuyuki Suzuki
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 JP4120578A priority Critical patent/JPS54133765A/en
Publication of JPS54133765A publication Critical patent/JPS54133765A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE: To prevent over-current for lamps by lighting bulbs with rectangular pulse in lighting mode when a electric source is closed or lamp-checks is effected.
CONSTITUTION: An electric source V1 for a switching circuit SW is activated alone immediate after closing an electric source, subsequently, an output from a gate OR becomes to be one (1) by a voltage establishing signal P-AVL output from a control circuit and a gate G2 is activated. Simultaneously, a gate G1 is inactivated throuh an inverter iNV. Subsequently, an electric source V2 is activated, however, respective lamps are lighted by pulse signal through the gate G2 and a rectangular wave generating circuit OSC at this time, and rush current upon closing the electric source will never be flown. When lamp-check is effected, a signal L- TEST becomes to be one (1) and the gate G2 is activated, thereby, lamps are lighted by the pulse signal from the rectangular wave generating circuit OSC.
COPYRIGHT: (C)1979,JPO&Japio
JP4120578A 1978-04-10 1978-04-10 Circuit for lighting lamps Pending JPS54133765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4120578A JPS54133765A (en) 1978-04-10 1978-04-10 Circuit for lighting lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4120578A JPS54133765A (en) 1978-04-10 1978-04-10 Circuit for lighting lamps

Publications (1)

Publication Number Publication Date
JPS54133765A true JPS54133765A (en) 1979-10-17

Family

ID=12601901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4120578A Pending JPS54133765A (en) 1978-04-10 1978-04-10 Circuit for lighting lamps

Country Status (1)

Country Link
JP (1) JPS54133765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016103368A (en) * 2014-11-27 2016-06-02 株式会社小糸製作所 Lighting circuit and lighting fixture for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016103368A (en) * 2014-11-27 2016-06-02 株式会社小糸製作所 Lighting circuit and lighting fixture for vehicle

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