Power converter for lunar roving navigation subsystem

Author

Spearow, Robert

Author_Institution

Aerosp. Group, Boeing Co., Kent, WA, USA

fYear

1971

fDate

19-20 April 1971

Firstpage

197

Lastpage

204

Abstract

The Power Converter design for the Lunar Roving Vehicle Navigation Subsystem is described. The Lunar Roving program is summarized in sufficient detail to define the mission and operating environment. Certain Navigation Subsystem design trades pertinent to Power Converter requirements are discussed. A block diagram of the Power Converter is shown and described. Detail circuits are shown, with discussion of design trades, unique features, and performance. The Power Converter consists of a 28VDC switching preregulator, a DC-to-DC converter, three DC voltage regulators providing ±16VDC and +5VDC, and a 115VAC 4.00 Hertz inverter. Design trades considered circuit configurations, parts selection including choices between integrated circuits and discrete components, and functional choices such as exclusion of current limiting or equivalent short circuit protection. Finally, packaging design of the Navigation Subsystem and its Power Converter are briefly reviewed with comments on advantages and disadvantages of the selected design.

Keywords

DC-DC power convertors; electric vehicles; planetary rovers; space power generation; space vehicle navigation; DC voltage regulators; DC-to-DC converter; current limiting; discrete components; equivalent short circuit protection; frequency 4.00 Hz; integrated circuits; inverter; lunar roving navigation subsystem; packaging design; power converter design; switching preregulator; voltage 115 V; Circuit faults; Inverters; Navigation; Oscillators; Regulators; Transistors; Voltage control;

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.1971.7069152

Filename

7069152