Zero Crossing Detector Circuit

Zero Crossing Detector Circuit

Every once in a while, I run across or design a circuit worth saving. This Zero Crossing Detector Circuit is one such animal. It's operation is not restricted to a pure sine wave, but that's the application shown. The circuit is based around the LM324 op amp seen above. Use it as you see fit and enjoy... The original image is available in adobe pdf file format.

OK, that's about it, good luck and enjoy.
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