Electronic Design

Zero-Crossing Circuit Avoids AC Noise

To properly control ac sources using solid-state devices, you need a pulse to signal the start of the ac’s rising edge. Most of the time, however, tremendous noise levels plague power lines. There ...
Electronic Design

Boost Switching Safety with a Zero-Crossing Relay Driver

What is a relay? What is zero voltage switching? How to create a zero-crossing relay driver with a simple external circuit. A relay is a device that allows for a smaller electronic switch to control a ...
Hackaday

zero crossing

For one-off projects or prototyping, it’s not too hard to find a wall wart or power supply to send a few joules of energy from the wall outlet to your circuit. Most of these power supplies use a ...
EDN

Lossless Generation of AC Zero Crossing

This report describes circuits employing CAPZero that provide zero crossing/line frequency and AC Loss information whilst also providing the normal CAPZero X capacitor discharge function with no ...
EDN

45 W Flyback converter with lossless zero crossing circuit

This report describes a universal input, 19 V, 45 W isolated flyback converter employing LNK6777E from the LinkSwitch-HP family of ICs. It contains the complete specification of the power supply, a ...