Accession Number : ADD003840

Title :   RF Power Amplifier Parallel Redundant System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Rambo,Sheldon I

Report Date : 01 Mar 1977

Pagination or Media Count : 4

Abstract : An RF power amplifier parallel redundant circuit employs three amplifiers. Under normal operation when all three amplifiers are functioning, the output from a comparator holds a 0, 60 deg two-bit phase shifter in the 60 deg position. When anyone of the amplifiers or any pair of amplifiers fail, the comparator output causes the two-bit phase shifter to switch to the 0 deg position. The system holds the power output constant at one-fourth the value of each individual amplifier for single or double failures. Only one simple switching position operation is required. (Author)

Descriptors :   *Patents, *Power amplifiers, Phase shift, Switching circuits

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE