Title :
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
fDate :
29 Jun-3 Jul 1992
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;
Conference_Titel :
Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE
Conference_Location :
Toledo
Print_ISBN :
0-7803-0695-3
DOI :
10.1109/PESC.1992.254751
