LAMP_CONTROL

Published:2009/7/20 7:17:00 Author:Jessie | From:SeekIC

Phototransistor Q1 senses lamp intensity and controls firing angle of scr's Q3 and Q4 through unijunction transistor Q2.-R. L. Carvajal, Phototransistor Regulates Illumination Intensity, Electronics, 38:20, p 101.



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