JPS5634537A - Control circuit for automobile illumination lamp - Google Patents

Control circuit for automobile illumination lamp

Info

Publication number
JPS5634537A
JPS5634537A JP11026879A JP11026879A JPS5634537A JP S5634537 A JPS5634537 A JP S5634537A JP 11026879 A JP11026879 A JP 11026879A JP 11026879 A JP11026879 A JP 11026879A JP S5634537 A JPS5634537 A JP S5634537A
Authority
JP
Japan
Prior art keywords
door
illumination lamp
key hole
transistor
turning
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
JP11026879A
Other languages
Japanese (ja)
Inventor
Hirotoshi Namazue
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.)
Alpha Corp
Original Assignee
Alpha Corp
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 Alpha Corp filed Critical Alpha Corp
Priority to JP11026879A priority Critical patent/JPS5634537A/en
Publication of JPS5634537A publication Critical patent/JPS5634537A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

PURPOSE: To eliminate cumbersome turning-off operation of a door key hole illumination lamp, room lamp, and ignition key hole illumination lamp and to save electricity, by constituting a control circuit so that said lamps are turned off automatically when a predetermined time period has elapsed after turning on these lamps.
CONSTITUTION: When a door handle, provided on the door for opening and closing a door is pulled up, interlocked switches SW1 and SW2 are closed, thereby an electric current flows through a diode D1, the switch SW1, a resistance R1, and the switch SW2, when a capacitor C is charged. Next, when the hand leaves the door handle, the switches SW1 and SW2 are opened, and the capacitor C is drained, causing an electric current to pass through transistor Q1, which makes a transistor Q2 electrically conductive, thus turning on a luminus diode LED. The diode LED illuminates a key hole provided on a door. At the same time a transistor is made electrically conductive, and a room illumination lamp (a) and ignition key hole lamp (b) are also lighted.
COPYRIGHT: (C)1981,JPO&Japio
JP11026879A 1979-08-31 1979-08-31 Control circuit for automobile illumination lamp Pending JPS5634537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11026879A JPS5634537A (en) 1979-08-31 1979-08-31 Control circuit for automobile illumination lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11026879A JPS5634537A (en) 1979-08-31 1979-08-31 Control circuit for automobile illumination lamp

Publications (1)

Publication Number Publication Date
JPS5634537A true JPS5634537A (en) 1981-04-06

Family

ID=14531371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11026879A Pending JPS5634537A (en) 1979-08-31 1979-08-31 Control circuit for automobile illumination lamp

Country Status (1)

Country Link
JP (1) JPS5634537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102543U (en) * 1982-12-27 1984-07-10 トヨタ自動車株式会社 Vehicle interior lamp control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102543U (en) * 1982-12-27 1984-07-10 トヨタ自動車株式会社 Vehicle interior lamp control device

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