HIGH_VOLTAGENE_GATIVE_SWIT_CHING

Published:2009/7/14 3:55:00 Author:May | From:SeekIC

Designed for operation from supply voltages above maximum of -40 V for LM304 regulator, Output is -5 V at up to 10 A. Q2 provides volt-age isolation between regulator and Unitrode PIC636 hybrid power switch. R9 limits current through zener under steady-state and start-up conditions.- Switching Regulator Design Guide, Unitrode, Watertown, MA, 1974, U-68A, p 9.



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