Title :
A new extension of one-cycle control and its application to switching power amplifiers
Author :
Lai, Zheren ; Smedley, Keyue M.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
fDate :
1/1/1996 12:00:00 AM
Abstract :
A new extension of one-cycle control is proposed for controlling DC-AC switching converters. Instability, encountered in the implementation, was studied and resolved. An automatic switching-error correction scheme is developed. This control technique overcomes the nonlinearity of DC-AC switching converters, eliminates the crossover distortion, rejects the power source ripple, and achieves a large dynamic range and a wide bandwidth. A half-bridge experimental circuit was built to verify the theory. This new extension is suitable for high efficiency, small volume, and low distortion audio power amplification
Keywords :
DC-AC power convertors; audio-frequency amplifiers; bridge circuits; error correction; power amplifiers; stability; switching circuits; DC-AC switching converters; automatic switching-error correction scheme; crossover distortion elimination; half-bridge circuit; high efficiency; instability; low distortion audio power amplification; one-cycle control extension; power source ripple rejection; switching power amplifiers; Automatic control; Bandwidth; Circuits; DC-DC power converters; Dynamic range; Error correction; Force control; Power amplifiers; Proportional control; Switching converters;
Journal_Title :
Power Electronics, IEEE Transactions on
