2800 watt series inverter DC power supply

Author

Cronin, D.L.

Author_Institution

Electr. Power Process. Dept., TRW Syst., Redondo Beach, CA, USA

fYear

1971

fDate

19-20 April 1971

Firstpage

117

Lastpage

123

Abstract

A high efficiency, low weight silicon controlled rectifier power supply which supplies 28V @100A is described. The power supply operates from a conventional 3 phase 120/208Vdc (50 to 1600Hz) power source. The AC power source is converted directly to DC which powers two SCR inverters operating phase displaced up to 12.5 kHz. The two inverter outputs are rectified and fed into a common output filter to complete the final power conversion step. Output metering and input/output circuit breakers are provided in a rack mounted unit designed for natural convection cooling. Efficient, high frequency operation of the inverter SCR´s makes possible the high overall power supply efficiency and low weight. Extremely stale and accurate voltage regulation is implemented. Additional features are inherent short circuit capability and adjustable output current limiting. Several aspects of circuit design and performance are discussed.

Keywords

invertors; power supplies to apparatus; rectifiers; SCR inverters; adjustable output current limiting; current 100 A; frequency 12.5 kHz; frequency 50 Hz to 1600 Hz; low weight silicon controlled rectifier power supply; natural convection cooling; power 2800 W; series inverter DC power supply; short circuit capability; voltage 120 V; voltage 208 V; voltage 28 V; Capacitors; Equations; Inverters; Power supplies; Reactive power; Switches; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1971 IEEE

Conference_Location

Pasadena, CA

ISSN

0275-9306

Type

conf

DOI

10.1109/PESC.1971.7069142

Filename

7069142