_15_V_FROM__15_V

Published:2009/6/30 2:22:00 Author:May | From:SeekIC

First two sections, of 74C04 hex inverter form 100-kHz oscillitor, with other sections connected to provide inversion of standard microprocessor source voltage as required for some interfaces and some DA converters.Shunt regulator formed by D1 and Q1 maintains output vottage relatively constant.Changing zener D1 to 13 V makes output －12 V.—S. Ciarcia, Build a 5 W DC to DC Converter, BYTE, Oct. 1978, p 22, 24, 26, 28, and 30-31.



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