Boost/complementary buck DC/DC converter for space applications

Author

Banfi, E. ; Maranesi, P. ; Volpi, G.F.

Author_Institution

Laben Ferranti Int., Milan, Italy

fYear

1989

fDate

15-18 Oct 1989

Abstract

A DC/DC converter for space applications is described whose switching cell can be varied by means of two jumpers on the printed board. When the minimization of the conducted emission is a primary requirements and the avionic bus (i.e. 28 V DC) is used, the boost plus push-pull configuration will be preferred; if the voltage source is much higher, for instance 150 V DC, and excellent audio susceptibility over a wide frequency range is required, then the complementary buck plus push-pull configuration is best suited. Exact dynamic models of both switching converters are given in the Z-transform domain; their good compliance with actual conditions is demonstrated by experimental frequency-response plots

Keywords

Z transforms; frequency response; power convertors; space vehicle power plants; 150 V; 28 V; DC/DC converter; Z-transform domain; boost plus push-pull configuration; buck DC/DC converter; complementary buck plus push-pull configuration; dynamic models; frequency-response plots; space applications; Aerospace electronics; Circuit topology; DC-DC power converters; Frequency; Inductors; Protection; Regulators; Switching circuits; Switching converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1989. INTELEC '89. Conference Proceedings., Eleventh International

Conference_Location

Florence

Type

conf

DOI

10.1109/INTLEC.1989.88320

Filename

88320