Delay light circuit with digital circuit(2)

Published:2011/4/20 2:12:00 Author:Nicole | Keyword: delay light, digital circuit | From:SeekIC

The figure is as shown, it is a delay light circuit adopts 2 input terminals and negation gate digital IC, VD3、VS、 C3、C4 form a simple capacity depressurization half wave rectifier steady voltage circuit, after connecting to power supply, two terminals of C3 will output about 12V stable DC voltage to provide the whole controller. Gate Ⅰ, gate Ⅱ, can adopt two good NAND gates of CD4011 digital IC, the input terminals of another NAND gates should be connected to ground, to avoid interference. K uses JZC-22F、DC12V small middle power electromagnetic relay.



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