Automatic Porch-Light Control Circuit

Posted on Jul 5, 2012

The automatic porch-light control circuit holds a triac on until a 4020 divider counts a number of 60-Hz powerlinc pulses. The circuit turns off a light after a predetermined time by using pins other than pin 3 of III. Various times can be set.

Automatic Porch-Light Control Circuit
Click here to download the full size of the above Circuit.

Consult the 4020 data sheet for information.

Leave Comment

characters left:

New Circuits



Popular Circuits

Op Amp Power Driver
Fet Microphone Mixer Circuit
Remote Control Tester Circuit PCB
3A adjustable regulator using LM350
direction detector decoder
RF workbench
CD47 (Rodan) Nixie Tube Clock
Car Alarm Simulator