Title :
Analysis, design, and experimental results of a 1-kW ZVS-FB-PWM converter employing magamp secondary-side control
Author :
Watson, Robert ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
10/1/1998 12:00:00 AM
Abstract :
The design and breadboard implementation of a constant-frequency, zero-voltage-switched, full-bridge pulsewidth modulation converter delivering a 12-V-at-1-kW output from a 350-450-VDC input bus is described. The zero-voltage switching characteristic is maintained over a wide operating range by utilizing the transformer magnetizing inductance as an energy storage element. Output voltage regulation is accomplished entirely on the secondary side through magamp control, thus simplifying the methods used for maintaining control and isolation
Keywords :
PWM power convertors; bridge circuits; energy storage; magnetic amplifiers; power transformers; switching circuits; transformer windings; voltage control; 1 kW; 12 V; 350 to 450 V; breadboard implementation; design; energy storage element; full-bridge PWM power converter; magamp secondary-side control; operating range; output voltage regulation; transformer magnetizing inductance; zero voltage switching; Bridge circuits; Energy storage; Inductance; Magnetic resonance; Magnetic switching; Pulse width modulation; Pulse width modulation converters; Switches; Voltage control; Zero voltage switching;
Journal_Title :
Industrial Electronics, IEEE Transactions on
