Promising to simplify solid-state relay, ac-motor control, and lighting ballast designs, the FOD420 and FOD4208 random-phase, snubber-less triac drive optocouplers integrate active dv/dt clamps to ...

Abstract: The Z-Source Inverter (ZSI) is a novel and attractive topology for an power electronic interface. Shoot-through states are utilized to boost the DC bus voltage, which also differentiates the ...

Abstract: The semiconductor power devices are the main core of all power electronic devices. Therefore, the protection of semiconductor devices and their operation at a safe level are required.

This design idea explains how a zero-crossing detector circuit can be used to control triacs. Fig 1. This zero-crossing detector circuit generates the control pulses needed to turn on triacs that ...

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 ...