Automatic light control circuit curtains

Posted on Nov 10, 2015

The circuit works as follows: every morning, light shines into the silicon photocell, generating a force, this force will transistor VT1 conduction,

Automatic light control circuit curtains
Click here to download the full size of the above Circuit.

the capacitor cl charged with the capacitor C. Voltage rising, VT2 emitter current is gradually increasing, this current reaches the thyristor gate trigger current, the thyristor is triggered conduction, the relay pull-K, contact conversion, DC motor driven positive spin turn, the deceleration drive curtains moving slowly to a stop.

Leave Comment

characters left:

New Circuits



Popular Circuits

Class A 2A3 audio Amplifier
Tone control
Digital Voltmeter of your Own
Basic UPS Power Supplys
Simple Low-cost Stopwatch
Voltage Controlled Switch
Novel White LED Torch
USB-Powered PIC Programmer
PLL pulse generator(74HC4060 TC9122P)
Meter load economizer circuit diagram