A new approach in switching mode transformer design with distributive configuration

Author

Cheng, D.K.W. ; Ng, K.L.

Author_Institution

Hong Kong Polytech., Hong Kong

fYear

1992

fDate

29 Jun-3 Jul 1992

Firstpage

1387

Abstract

A switching mode transformer design approach with distributive configuration is devised. This configuration of cores offers inherent characteristics of even thermal distribution and extremely low profile construction. An approximate leakage inductance formula is derived from the magnetic field intensity. Various winding constructions are evaluated in order to find the optimized configuration with the lowest leakage inductance and the best coupling coefficient. A SPICE transformer model using the inductance matrix and T-model technique is also discussed. A power supply prototype was built to verify its performance

Keywords

SPICE; design engineering; power engineering computing; power transformers; switched mode power supplies; transformer cores; SMPS; SPICE; T-model technique; cores; coupling coefficient; distributive configuration; inductance matrix; leakage inductance; low profile construction; magnetic field intensity; model; performance; power engineering computing; power transformers; switching mode transformer design; thermal distribution; winding; Circuit faults; Circuit simulation; Frequency; Inductance; Magnetic cores; Magnetic flux; Power supplies; Power transformer insulation; Transformer cores; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE

Conference_Location

Toledo

Print_ISBN

0-7803-0695-3

Type

conf

DOI

10.1109/PESC.1992.254751

Filename

254751