If I use a triac as a simple on-off switch to control a lamp at mains voltage, do I need a snubber across the triac? Say the lamp is 10 meters away from the triac, mains-rated LED or 100W incandescent (not CFL, mercury, neon, etc.), and the switchig is via an optoisolator without zero-cross sensing. Thanks in advance.
- posted
14 years ago