Title :
Dynamic performance of buck converter with input voltage feedforward control
Author :
Sjoroos, J.-P. ; Suntio, Teuvo ; Kyyra, J. ; Kostov, K.
Author_Institution :
ABB Oy, Helsinki
Abstract :
The effect of input voltage feedforward (IVFF) on the dynamical performance of a buck converter is investigated. The IVFF scheme is implemented making the pulse-width-modulation (PWM) ramp directly proportional to the input voltage. Ideally the IVFF control would make the internal loop gain constant, perfect attenuation of input noise and resistive input impedance with the phase of 180 deg. The transient response of the converter is, however, deteriorated due to limited duty ratio
Keywords :
PWM power convertors; feedforward; transient response; voltage control; PWM ramp; buck converter; input noise; input voltage feedforward control; internal loop gain constant; limited duty ratio; perfect attenuation; pulse-width-modulation ramp; resistive input impedance; transient response; Attenuation; Buck converters; Impedance; Pulse width modulation; Pulsed power supplies; Space vector pulse width modulation; Switched-mode power supply; Switching converters; Uniform resource locators; Voltage control; Switched-mode power supply; converter control; dynamical performance;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219582
