A unity power factor multiple isolated outputs switching mode power supply using a single switch

Nenhuma Miniatura disponível

Data

1991-03-01

Autores

Canesin, Carlos Alberto [UNESP]
Barbi, Ivo [UNESP]

Título da Revista

ISSN da Revista

Título de Volume

Editor

Resumo

The authors present an offline switching power supply with multiple isolated outputs and unity power factor with the use of only one power processing stage, based on the DC-DC SEPIC (single ended primary inductance converter) modulated by variable hysteresis current control. The principle of operation, the theoretical analysis, the design procedure, an example, and simulation results are presented. A laboratory prototype, rated at 160 W, operating at a maximum switching frequency of 100 kHz, with isolated outputs rated at +5 V/15 A -5 V/1 A, +12 V/6 A and -12 V/1 A, has been built given an input power factor near unity.

Descrição

Palavras-chave

Electric Power Factor, Electron Converters, Electronic Circuits, Power Supply, Isolated outputs, Switching-mode power supplies, Unity power factor, Electric Power Supplies to Apparatus

Como citar

Conference Procedings - IEEE Applied Power Electronics Conference and Exhibition - APEC, p. 430-436.