Average current mode control of two-input buck post-regulators used in power factor correctors

Author

Villegas, P.J. ; Sebastian, J. ; Hernando, M.M. ; Nuno, F.

Author_Institution

Oviedo Univ., Spain

Volume

1

fYear

1997

fDate

22-27 Jun 1997

Firstpage

89

Abstract

The use of the average current mode control in the two-input buck post-regulator is studied in this paper. Using this type of control, the bandwidth of the post-regulator increases in relation to the one obtained when a conventional voltage mode control (with or without feedforward) is used. As a result, the attenuation of the input voltage ripple (100-120 Hz) increases and, therefore, lower bulk capacitors can be used to obtain a very low voltage ripple in the output, which is very important when a battery is connected at the output. This is very common in distributed power supply systems

Keywords

electric current control; power convertors; power factor correction; average current mode control; bandwidth increase; distributed power supply systems; input voltage ripple attenuation; low output voltage ripple; lower bulk capacitors; power factor correctors; two-input buck post-regulators; Bandwidth; Batteries; Buck converters; Capacitors; Power supplies; Pulse width modulation; Reactive power; Regulators; Switching frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE

Conference_Location

St. Louis, MO

ISSN

0275-9306

Print_ISBN

0-7803-3840-5

Type

conf

DOI

10.1109/PESC.1997.616667

Filename

616667