LED2 LED Sensor Relay Tracker Schematic

Published:2013/7/5 1:35:00 Author:muriel | Keyword: LED2 , LED, Sensor , Relay, Tracker Schematic | From:SeekIC

Circuit 1 tends to chatter the relays under certain lighting conditions as there is no built in hysteresis. This version uses a Schmitt trigger hex inverter circuit to eliminate the chatter. It works better but is more complex. Note! R4 and R5 are used to force parking when it gets dark. If parking is not desired don't use R4 and R5. Parking may not be desired in low power consumption applications.Also, the parking resistors, R4 and R5, reduce sensitivity a bit.



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