Title :
Design of an analog fuzzy logic controller for a PWM boost converter
Author :
Wong, L.K. ; Leung, F.H.F. ; Tam, P.K.S. ; Chan, K.W.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Hung Hom, Hong Kong
Abstract :
Fuzzy logic controllers (FLCs) have been widely used in many applications, However, they are usually implemented digitally by expensive digital signal processors (DSPs), and the performance is restricted by the sampling period. In this paper, an analog FLC implemented by a low-cost device is proposed. Through analog circuitry, the features of an FLC such as membership function shaping, rule inference and defuzzification are realized. The controller is successfully applied to regulate a PWM boost power converter with satisfactory performance
Keywords :
DC-DC power convertors; PWM power convertors; control system synthesis; fuzzy control; voltage control; PWM boost power converter; analog circuitry; analog fuzzy logic controller; control design; control performance; defuzzification; membership function shaping; rule inference; voltage regulation; Bismuth; Circuits; Digital signal processing; Digital signal processors; Fuzzy control; Fuzzy logic; Pulse width modulation; Pulse width modulation converters; Shape; Signal sampling;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671077
