50_V_AT_1_kW

Published:2009/7/14 5:01:00 Author:May | From:SeekIC

Switching regulator operating at 10 kHz uses pulse-width modulation to give 87% efficiency at full load. Input voltage is 275 VDC. Inverter output drives combination of eight Delco 2N5157 power transistors connected in paralleled pairs in each leg of bridge circuit. Clamp diodes in each bridge leg prevent reverse conduction through collector-base diodes of transistors. Regulator consists of differential amplifier and two-stage DG amplifier controlling direct current through windings of magnetic amplifier.- One Kilowatt Regulated Power Converter with the 2N5157 Silicon Power Transistor, Delco, Kokomo, IN, 1972, Application Note 44, p 3.



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