https://github.com/bga/zero-cross-ac-opto-detector

simple isolated AC zero cross detector using cheap PC817 and TL431
https://github.com/bga/zero-cross-ac-opto-detector

Last synced: 3 months ago
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simple isolated AC zero cross detector using cheap PC817 and TL431

• Host: GitHub
• URL: https://github.com/bga/zero-cross-ac-opto-detector
• Owner: bga
• License: other
• Created: 2019-05-24T04:43:21.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2019-05-24T17:48:43.000Z (about 7 years ago)
• Last Synced: 2025-05-23T04:17:32.753Z (about 1 year ago)
• Language: AGS Script
• Size: 171 KB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# simple isolated AC zero cross detector using cheap PC817 and TL431

## Schematic

![Schematic](https://raw.githubusercontent.com/bga/zero-cross-AC-opto-detector/master/media/schematic.png)

## Real Oscillogram

![Real Oscillogram](https://raw.githubusercontent.com/bga/zero-cross-AC-opto-detector/master/real/osc00.png)