HEADLIGHT_DIMMER

Published:2009/7/3 3:29:00 Author:May | From:SeekIC

When the lights of an on-coming car are sensed by photo-transistor Q1, things get going. Sensitivity is set by the 22-megohm resistor, R5, to about half a foot-candle. The relay used has a 12-volt, 0.3A coil. The L14C1 is complete with a lens that has a diameter of one inch for a 10° triewing angle.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Automotive_Circuit/HEADLIGHT_DIMMER.html

Print this Page | Comments | Reading(3)