Remote on-off switch

Posted on Apr 2, 2012

This circuit provides power control without running line-voltage switch leads. The primary of a 6-volt filament transformer is connected between the gate and one of the main terminals of a triac. The secondary is connected to the remote switch through ordinary low-voltage line. With switch open, transformer blocks gate current, prevents the triac from firing and applying power to the equipment

Remote on-off switch
Click here to download the full size of the above Circuit.

Closingthe switch short-circuits the secondary, causing the transformer to saturate and trigger the triac.

Leave Comment

characters left:

New Circuits



Popular Circuits

PC thermometer schematic
beeper circuit
Lm318 Microphone preamplifier with tone control circuit and explanation
flasher and lighting control circuits
Heat Sensitive Switch
microSD ATmega32 Data-Logger
Tilt Sensor Alarm Circuit
Fogger controller
Fun card
Two Simple Thermistor-Controlled Relay Circuits
INA105 circuit diagram of the basic power and signal connections