EDN

How to build an isolated digital AC dimmer using Arduino

AC loads are everywhere around us because at least home appliances are supplied with the mains power. Therefore, we always face the situations that we want to have full control (dimming) over an AC ...
Electronic Design

Model Diacs And Triacs For AC-Line Control

Diacs and triacs are often used for control of ac lines and are seeing increasing use in Internet-enabled line switches. However, the traditional approach of modeling them using bipolar transistors ...
EDN

LED Dimmer Triacs and Quadracs

Robust switching performance for AC line based LED dimmer applications: The Littelfuse Q6008LH1LED and Q6012LH1LED Series of AlternistorTriac and Q6008LTH1LED and Q6012LTH1LED Series of QUADRAC ...
New Electronics

Triac and quadrac design innovations can simplify LED lighting control

Triacs are at the heart of dimming controls for LED lighting. Triacs used in dimmers have normally been characterised and specified for incandescent lamp loads, which have high current ratings for ...
Electronic Design

Triac-Driven LED Controllers Produce Flicker-Free Performance

To understand the technology associated with practical LED dimming we first have to look at the technology associated with triac-based incandescent lamp dimmers. The typical triac lamp dimmer circuit ...