JPS603598U

JPS603598U - lighting circuit

Info

Publication number: JPS603598U
Application number: JP9399083U
Authority: JP
Inventors: 栗原　邁
Original assignee: アルフア技研株式会社
Priority date: 1983-06-18
Filing date: 1983-06-18
Publication date: 1985-01-11

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を示したものである。１・・・交流電源、２〜６・・・コンデンサ、７〜１８
・・・抵抗、１９〜２１・・・ダイオード、２２・・・
ツェナーダイオード、２３．２４・・・ＣｄＳ、　２５
．　２６・・・トランジスタ、２７・・・コイル、２８
・・・トライアック、２９・・・トリガーダイオード、
３０・・・ＳＣＲ。３１・・・電球。FIG. 1 shows an electrical circuit diagram of the present invention. 1...AC power supply, 2-6...capacitor, 7-18
...Resistance, 19-21...Diode, 22...
Zener diode, 23.24...CdS, 25
．． 26...Transistor, 27...Coil, 28
...triac, 29...trigger diode,
30...SCR. 31...Light bulb.

Claims

[Scope of utility model registration request]

1st and 2nd whose resistance value changes depending on the intensity of light with the power supply section
a photoconductive element, a switching circuit that is turned on and off by the first photoconductive element, a capacitor for setting the on-time of the switching circuit, a triac triggered by the switching circuit, and the second photoconductive element. It consists of an SCR triggered by a conductive element, and a light bulb that lights up when the triac or SCR is in the on state, and it lights up for a certain period of time when it gets dark instantly, and when it gets dark gradually or after the above-mentioned time has elapsed. A lighting circuit characterized in that the lighting is turned on at half the brightness of the lighting until it becomes bright again.