HIGH_VOLTAGE_NEGATIVE_SWITCHING

Published:2009/7/14 4:18:00 Author:May | From:SeekIC

Uses zener to reduce supply voltage to acceptable level for LM304 IC regulator，Base drive and voltage isolation are provided by Q2, R10, and R11 for PIC636 hybrid power switch Circuit operates in fixed OFF-time mode, -L. Dixon and R. Patel, Designers' Guide to：Switching Regulators, EDN Magazine. Oct. 20, 1974, p 53-59.



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