A low-profile low-power converter with isolated voltage output

Author

Hui, S.Y.R. ; Tang, S.C. ; Chung, H.

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, China

Volume

1

fYear

2000

fDate

2000

Firstpage

95

Abstract

In this paper, an isolated low-profile power converter using a coreless printed-circuit-board (PCB) transformer is described. The diameter of the coreless PCB transformer is merely 0.46 cm. Because of the high frequency (8 MHz) operation involved, the gate drive electronics has to be soft-switched in order to achieve high energy efficiency and reduce the gate drive power consumption. The very thin PCB used in the converter facilitates energy coupling from the primary winding to the secondary side of the transformer. The output voltage can be regulated and programmable. The converter´s power output is about 0.5 W with a typical transformer efficiency of 63%

Keywords

driver circuits; power convertors; switching circuits; transformer windings; transformers; 0.4 mm; 0.46 cm; 0.5 W; 12 V; 5 V; 63 percent; 8 MHz; coreless PCB transformers; coreless printed-circuit-board transformer; energy coupling; gate drive electronics; gate drive power consumption reduction; high energy efficiency; isolated voltage output; low-profile low-power converter; output voltage regulation; primary winding; secondary side; soft switched converter operation; transformer efficiency; Circuit faults; Electronics packaging; Energy consumption; Ferrites; Frequency; Magnetic cores; Magnetic materials; Pulse transformers; Transformer cores; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.885337

Filename

885337