Electronic Design

Zero-Crossing Circuit Avoids AC Noise

Explanation of how a diode divider can tame powerline noise on a zero-crossing detector's input circuit, improving ZCD sensitivity. To properly control ac sources using solid-state devices, you need a ...
Electronic Design

Zero-Cross Detectors Deliver Positive And Negative Triggering

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 ...
Electronics Weekly

More on: Rohm’s interesting zero-crossing detector

Rohm recently introduced a low-power 600V-tolerant zero-crossing detection chip, intended to cut energy wastage in home appliances by reducing sense current through the high voltage monitoring ...
EDN

45 W Flyback Converter with Lossless Zero Crossing Circuit

This document is a design example report for a 45 W flyback converter with lossless zero crossing circuit employing LinkSwitch™-HP LNK6777E and CAPZero-2™ CAP200DG. It operates in an input voltage ...
EDN

Low-component-count zero-crossing detector is low power

There are many circuits publishedshowing zero-crossingdetectors for use with 50- and60-Hz power lines. Though the circuitvariations are plentiful, manyhave shortcomings. This Design Idea shows a ...
Hackaday

An Introduction To Solid State Relays

When we think of relays, we tend to think of those big mechanical things that make a satisfying ‘click’ when activated. As nice as they are for relay-based computers, there are times when you don’t ...
Electronics Weekly

More on: Rohm’s interesting zero-crossing detector

Rohm recently introduced a low-power 600V-tolerant zero-crossing detection chip, intended to cut energy wastage in home appliances by reducing sense current through the high voltage monitoring ...