DocumentCode :
1811267
Title :
A new non-symmetric phase, integral-lead controller for PWM DC-DC converters
Author :
Kazimierczuk, Marian K. ; Geise, Robert S.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fYear :
1995
fDate :
28-29 Sep 1995
Firstpage :
366
Lastpage :
371
Abstract :
This paper introduces a new nonsymmetric phase, integral-lead controller that can be used in pulse-width-modulated (PWM) DC-DC power converters. This new controller can provide a peak phase boost of up to 165°, with its phase returning to 0° at high frequencies. This phase characteristic is much improved over that of the commonly used symmetric phase integral-lead controller which provides a peak phase boost of up to 165°, but with -90° of phase at high frequencies. The nonsymmetric phase controller provides to a DC-DC converter, increased gain margin, increased 3 dB bandwidth and decreased phase at high frequencies, over that of a symmetric phase controller. A boost DC-DC converter design example illustrates the improved performance when using the nonsymmetric phase controller over the symmetric phase integral-lead controllers
Keywords :
PWM power convertors; PWM DC-DC converters; gain margin; nonsymmetric phase integral-lead controller; Bandwidth; DC-DC power converters; Error correction; Feedback; Frequency conversion; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Transfer functions; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Applications, 1995., Proceedings of the 4th IEEE Conference on
Conference_Location :
Albany, NY
Print_ISBN :
0-7803-2550-8
Type :
conf
DOI :
10.1109/CCA.1995.555731
Filename :
555731
Link To Document :
بازگشت