A -35kV power supply has been developed for a plasma experiment on the put-of-eliptic mission. In addition, an isolation transformer has been developed to provide low voltage power at the -35kV potential. The design features incorporated to produce a spaceflight power supply housed within a 4x4x2.5 in package are discussed. The supply is powered from an unregulated spacecraft bus and provides a regulated output of -35kV plus/minus 5 percent with less than 0.5 percent ripple over a temperature range -20 Cel to +60 Cel. The unit serves as a bias supply with an output current less than 0.5 micro-A. With the supply essentially operating unloaded, 5 percent regulation is achieved by sensing and regulating the first stage of a 12-stage Cockcroft/Walton multiplier. Control of the ac voltage input to the multiplier stack provides the regulation. The isolation transformer utilizes a ferrite u-core with the primary and secondary windings placed on opposite legs for separation. The transformer is encapsulated with the power supply.
Minus 35kV space-borne instrument power supply
Minus 35kV-Spannungsversorgung in einem Raumschiff
IEEE Transactions on Aerospace and Electronic Systems ; 17 , 5 ; 651-655
1981
5 Seiten, 7 Bilder, 2 Tabellen, 3 Quellen
Aufsatz (Zeitschrift)
Englisch
Minus 35kV Space-Borne Instrument Power Supply
IEEE | 1981
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