Title :
A new current-fed, isolated PWM DC-DC converter
Author :
Mantovanelli, Peter ; Barbi, Ivo
Author_Institution :
Dept. of Electr. Eng., Univ. Federal de Santa Catarina, Florianapolis, Brazil
fDate :
5/1/1996 12:00:00 AM
Abstract :
This paper introduces a new current-fed DC-DC power converter circuit whose features are as follows: (1) two active switches gated in a complementary and asymmetrical way, connected to the same ground; (2) inherent high reliability provided by the input boost inductor; (3) isolation by a high-frequency transformer; and (4) purely capacitive output filter. Circuit operation, theoretical analysis, and design procedure are presented. Experimental results taken from a prototype, rated at 48 V/300 W, are also included in the paper to demonstrate the validity of the theoretical analysis
Keywords :
DC-DC power convertors; PWM power convertors; circuit reliability; high-frequency transformers; power capacitors; power filters; power semiconductor diodes; power semiconductor switches; power transformers; switching circuits; 300 W; 48 V; active switches; current-fed isolated PWM DC-DC power convertor; high-frequency transformer; input boost inductor; purely capacitive output filter; reliability; Circuit analysis; DC-DC power converters; Filters; Inductors; Pulse width modulation; Pulse width modulation converters; Switched capacitor circuits; Switches; Switching circuits; Switching converters;
Journal_Title :
Power Electronics, IEEE Transactions on
