Title :
Feedforward control of PWM buck converter with sawtooth peak value modulation
Author :
Kazimierczuk, Marian E. ; Izadi, Mohammad Ali ; Massarini, Antonio
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
This paper presents an analysis and experimental results for a feedforward control circuit suitable for applications in pulse-width modulated (PWM) buck-derived converters. Line regulation can be improved using feedforward control techniques. The analysis is given for the buck converter operated in the continuous conduction mode (CCM). The experimental results are performed at VI=17 to 42 V, V0 =14 V, and the switching frequency of 100 kHz. The measured line regulation of the buck converter without negative feedback loop was less than 0.2% per 1 V of input voltage
Keywords :
PWM power convertors; feedback; power system control; PWM buck converter; continuous conduction mode; feedforward control circuit; line regulation; sawtooth peak value modulation; Buck converters; Capacitors; MOSFET circuits; Negative feedback; Open loop systems; Proportional control; Pulse width modulation; Pulse width modulation converters; Resistors; Voltage control;
Conference_Titel :
Circuits and Systems, 1996., IEEE 39th Midwest symposium on
Conference_Location :
Ames, IA
Print_ISBN :
0-7803-3636-4
DOI :
10.1109/MWSCAS.1996.588064
