The compact ac light dimmer module with zero-crossing detector described here is ideal for microcontroller-based ac voltage controlling applications and projects. ... The triac in the module BT136 ...

This light dimmer control has active timing capacitor reset or AC line zero-crossing synchronization. The 13 additional components are garden variety and cost less than $2. Performance at the low end ...

A PIC controls a triac connected across the supply by monitoring power line zero-crossing. The PIC controls dimming by delaying the time the triac fires, which trims the peaks off of the AC waveform.

Triac-Dimmable LED Driver from Diodes Incorporated Delivers Excellent Dimmer Compatibility for 230/120VAC Lamps. March ... AC-DC converters and controllers, DC-DC switching and linear ...

Green Watt Power’s 20-W GLCT series of constant-current dimmable LED power supplies offer a compact solution for Triac/ELV dimmer-compatible LED driver applications.