OPTOISOLATOR_INPUT_PROTRCTION

Published:2009/7/6 7:19:00 Author:May | From:SeekIC

Combination of diode and transistor limits input current to LED of Motorola MOC3011 optoisolator to safe maximum of less than 15 mA for input voltage range of 3-30 VDC. Circuit also protects LED from accidental reversal of polarity.-P.O 'Neil, “Applications of the MOC3011 Triac Driver,” Motorola, Phoenix, AZ, 1978, AN-780, p 4.



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