thicks Posted June 10, 2015 at 06:14 PM Share Posted June 10, 2015 at 06:14 PM Hi, What is the purpose of the Varistor in the Relay circuit. Is it to protect the chip and route current away if Voltage from Emitter to Collector is to high? Maybe it has something to do with the reverse leakage current from the photodiode array? Also, The Relay chip uses two MOSFETs. Is the second one used to isolate something or maybe its also related to the leakage current? Quote Link to comment Share on other sites More sharing options...
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