Accession Number : ADD003732

Title :   Low Noise DC Power Supply System for Electronics on a Rotating Assembly.

Descriptive Note : Patent,


Personal Author(s) : Wagner,Peter B ; Telford,James W

Report Date : 10 Feb 1976

Pagination or Media Count : 6

Abstract : The patent concerns a low noise D. C. power supply system that is particularly suited for supplying D. C. power from a stationary source to electronics equipment mounted on a rotating assembly. Brush and slip ring assemblies are used to transfer the D. C. power to the rotating assembly and brush noise is minimized by having noninductive impedences on both sides on the brush and slip ring assemblies. Floating circuits are employed to transfer the D. C. power from the stationary assembly to the rotating assembly with the return reference ground being through the brush and slip ring assemblies to the stationary assembly. Higher than usual voltages are supplied to a capacitor mounted on the rotating assembly to charge the capacitor providing reserve energy storage, providing a voltage margin for further regulation and thus minimizing the effect of brush noise.

Descriptors :   *Patents, *Power supplies, Direct current, Low noise, Electronic equipment, Aircraft equipment, Rotation

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE