Light control switch circuit composed of silicon photocell

Published:2011/3/29 22:46:00 Author:Nicole | Keyword: Light control switch, silicon photocell | From:SeekIC

As shown in the figure, in the absence of illumination, VT cuts off (or has smaller collector current, but not enough to relay); After the silicon photocell with light irradiation, it will produce positive voltage to make VT turn on and relay start.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Light_control_switch_circuit_composed_of_silicon_photocell.html

Print this Page | Comments | Reading(3)