More on: Rohm’s interesting zero-crossing detector

Rohm has introduced a low-power 600V-tolerant zero-crossing detection chip, intended to cut energy wastage in home appliances. As well as detecting the mains zero crossing waveform, certain versions offer a buffered dc output voltage proportional to the mains dc link voltage. Called the BM1ZxxxFJ series, it consists of six parts (table later). The company is pitching ...

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