Title :
Optimal feed-forward compensation for PWM DC/DC converters
Author :
Calderoni, L. ; Pinola, L. ; Varoli, V.
Author_Institution :
L´´Aquila Univ., Italy
Abstract :
An analytical procedure for optimizing the feedforward compensation for any PWM (pulse width modulation) DC-DC converter is described. The aim of achieving zero DC audio-susceptibility was found to be possible for the buck, buck-boost, Cuk, and SEPIC cells; for the boost converter, however, only nonoptimal compensation is feasible. Rules for the design of PWM controllers and procedures for the evaluation of the hardware-introduced errors are given. A PWM controller implementing the optimal feedforward compensation for buck-boost, CUK, and SEPIC cells is described and experimentally characterized.<>
Keywords :
compensation; power convertors; pulse width modulation; Cuk converter; PWM DC/DC converters; PWM controllers; SEPIC cells; boost converter; buck converter; buck-boost converter; feedforward compensation optimisation; hardware-introduced errors; zero DC audio-susceptibility; DC-DC power converters; Feedforward systems; Frequency; Open loop systems; Pulse width modulation; Pulse width modulation converters; Switching converters; Topology; Transfer functions; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1990. PESC '90 Record., 21st Annual IEEE
Conference_Location :
San Antonio, TX, USA
DOI :
10.1109/PESC.1990.131194
