JPS60131999U

JPS60131999U - lighting circuit

Info

Publication number: JPS60131999U
Application number: JP1895484U
Authority: JP
Inventors: 中西　邦光
Original assignee: アルフア技研株式会社
Priority date: 1984-02-13
Filing date: 1984-02-13
Publication date: 1985-09-03

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 drawings]

第１図は本考案の電気回路図である。１・・・直流電源、２〜１２・・・抵抗、１３〜１５・
・・コンデンサ、１６〜１９・・・ダイオード、２０・
・・光導電素子（ＣｄＳ）、２１．２２・・・トランジ
スタ、２３〜２６・・・ナンド回路、２７・・・電球、
２８・・・第１のスイッチ、２９・・・第２のスイッチ
、３０・・・単安全マルチバイブレーク。FIG. 1 is an electrical circuit diagram of the present invention. 1...DC power supply, 2-12...resistance, 13-15.
...Capacitor, 16-19...Diode, 20.
...Photoconductive element (CdS), 21.22...Transistor, 23-26...NAND circuit, 27...Light bulb,
28...First switch, 29...Second switch, 30...Single safety multi-bye break.

Claims

[Scope of utility model registration request]

A DC power supply, a photoconductive element whose resistance value changes depending on the intensity of light, a single safety multivibrator that is triggered when the resistance of the photoconductive element becomes high, and when the resistance of the photoconductive element is brought into a high state. A logic circuit whose output is in an active state for a certain period of time by switching, a switching circuit which is turned on when the output of the logic circuit and a part or both of the monostable multivibrator is in an active state, and the switching circuit 1. A lighting circuit comprising a light bulb that is turned on or off when the circuit is turned on or off.