Accession Number : ADD004447

Title :   Dynamic Temperature Compensating Circuit for Power Transistor Converters.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Cowett,Philip M , Jr

Report Date : 12 Apr 1977

Pagination or Media Count : 8

Abstract : A dynamic temperature compensating circuit is disclosed for driving the bases of a first and a second transistor connected in the common-emitter configuration, having collector-emitter paths of the two transistors connected together in a current loop. The circuit employs diodes arranged in parallel in the base-emitter drive circuit of each transistor, to clamp the transistors on or off at appropriate times. The diodes and transistors are composed of the same type of semi-conductor material so that their respective forward bias potentials maintain equal magnitudes over a range of temperature. The circuit has particular application in D.C.-A.C. and D.C.-D.C. converters. (Author)

Descriptors :   *Patents, *DC to DC converters, *Control systems, *Thermal stability, Transistors, Electric power, Circuit analysis, Adaptive systems

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE