• on Miscellaneous Electronics
  • Published in issue 12/2002 on page 0
About the article

Electrically Isolated Zero- Crossing Detector

Electrically Isolated Zero- Crossing Detector
All power control circuits that use phase control require an adjustable delay element synchronised to the mains voltage. The adjustable delay determines the phase angle at which the thyristor, triac or transistor connects the mains voltage to the load. Simple passive dimmer circuits use RC phase shifters having a fixed relationship to the mains frequency. Nowadays, microprocessors are often used for precision controllers and complex control tasks.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

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