EDN

Smart dimming circuit learns and adapts to each triac dimmer

One of the biggest challenges for new, energy-efficient CFL and LED-based lights that will replace incandescents is working with existing triac-based dimmer switches. Triac dimmers vary widely in both ...
EDN

Implement an AC-switch triggering circuit using an optical Triac

Several different technologies and designs are available among solid-state switches today. The major families are the standard Triacs (triode for alternating current), the snubberless Triacs, and the ...
Electronic Design

Solid-State Triac Devices Replace Mechanical Relays In Power Switching Applications

Mechanical relays, contactors, and switches control the flow of electricity by the mechanical action of two conducting elements. The physical contact of two conducting elements creates a path for ...
Electronic Design

TRIAC-Controlled Power Supply Pre-Regulator Uses Optical Feedback

Fig 1. This efficient pre-regulator for a dc power supply uses an optical feedback loop to minimize dissipation rather than the traditional optically isolated TRIAC drivers. Fig 2. The PSpice ...