Triac zero voltage switching

Posted on May 30, 2012

The triac will be gated on at the start of the positive half cycle by current flow through the 3 µf capacitor as long as the C103 SCR is off. The load voltage then charges up the 1 µF capacitor so that the triac will again be energized during the subsequent negative half cycle of line voltage

Triac zero voltage switching
Click here to download the full size of the above Circuit.

A selected gate triac is required because of the III+ triggering mode.

Leave Comment

characters left:

New Circuits



Popular Circuits

RF power and VSWR meter
Reset Protection For Computers
Polarity Indicator Circuit
Laptop Power Supply for Car Schematic Diagram
OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits
the monitoring systems of railway level crossing of mining area of Atmega128 one-chip computer and GPRS
Zener diode tester
Lamp flasher using LM317
Module Project Template