JPS60138297U

JPS60138297U - lighting circuit

Info

Publication number: JPS60138297U
Application number: JP2644984U
Authority: JP
Inventors: 中西　邦光
Original assignee: アルフア技研株式会社
Priority date: 1984-02-24
Filing date: 1984-02-24
Publication date: 1985-09-12

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

[Brief explanation of the drawing]

第１図は本考案の電気回路図である。１・・・直流電源、２〜１７・・・抵抗、１８・・・光
導電素子（ＣｄＳ）、１９〜２３・・・コンデンサ、２
４〜３１・・・ダイオード、３２〜３５・・・ナンド回
路、３６．３７・・、・トランジスタ、３８・・・第１
のスイッチ、３９・・・第２のスイッチ、４０・・・電
球、４１・・・単安定マルチバイブレータ、４２・・・
第１タイマー回路、４３・・・第２タイマー回路。FIG. 1 is an electrical circuit diagram of the present invention. 1... DC power supply, 2-17... Resistor, 18... Photoconductive element (CdS), 19-23... Capacitor, 2
4 to 31...Diode, 32 to 35...NAND circuit, 36.37...Transistor, 38...First
switch, 39... second switch, 40... light bulb, 41... monostable multivibrator, 42...
1st timer circuit, 43... 2nd timer circuit.

Claims

[Scope of utility model registration request]

A DC power source, a photoconductive element whose resistance value changes depending on the strength of light, a monostable multivibrator that is triggered when the resistance of the photoconductive element becomes high, and switching when the resistance of the photoconductive element is high. a first timer circuit that outputs an output for a certain period of time by doing so; a second timer circuit that outputs an output for a certain period of time by releasing the switching while the first timer circuit is in operation;
a switching circuit that is turned on when the output of either the second timer circuit or the monostable multivibrator is activated;
1. A lighting circuit comprising: a light bulb that turns on or off when turned off.