DC and AC analysis of buck PWM DC-DC converter with peak-voltage-modulation feedforward control

Author

Kazimierczuk, Marian K. ; Edström, Anders J.

Author_Institution

Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

246

Abstract

DC and small-signal analyses are given for the open-loop buck pulse-width modulation (PWM) DC-DC converter with peak-voltage-modulation (PVM) feedforward control. A DC model is used to derive DC input-to-output transfer function taking into account parasitic components, such as the MOSFET on-resistance, diode forward resistance, and diode offset voltage. A small-signal model is used to derive the audiosusceptibility. It is shown that ideally the audiosusceptibility is zero for the buck converter with PVM feedforward control

Keywords

DC-DC power convertors; PWM power convertors; feedforward; transfer functions; AC analysis; DC analysis; DC input-to-output transfer function; MOSFET on-resistance; audiosusceptibility; buck PWM DC-DC converter; diode forward resistance; diode offset voltage; parasitic components; peak-voltage-modulation feedforward control; small-signal analyses; small-signal model; Analog-digital conversion; Buck converters; DC-DC power converters; Diodes; MOSFET circuits; Open loop systems; Pulse width modulation; Pulse width modulation converters; Transfer functions; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-5471-0

Type

conf

DOI

10.1109/ISCAS.1999.777556

Filename

777556