Small signal characterization of Active-Clamp Forward Converter with Full Wave Rectifier and peak current mode control

Author

Rajguru, V.S. ; Manjrekar, Sagar ; Chaudhari, B.N.

Author_Institution

Dept. of Electr. Eng., Coll. of Eng., Pune, India

fYear

2010

fDate

6-9 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

In this paper the small signal ac equivalent circuit model for Active Clamp Forward DC-DC Converter with Full Wave Rectifier is proposed using state space averaging technique. The model utilizes unbalanced secondary winding of the transformer and low output inductance value to achieve an improved bandwidth and load transient response. The effect of clamp capacitor on small signal characteristic is discussed and the remedies are proposed. Simulation results are presented for a converter operating at 100 KHz with 48V DC nominal input and 5V/20A DC output.

Keywords

DC-DC power convertors; electric current control; inductance; rectifying circuits; transformer windings; active clamp forward DC-DC converter; active-clamp forward converter; clamp capacitor; current 20 A; frequency 100 kHz; full wave rectifier; load transient response; peak current mode control; signal ac equivalent circuit model; signal characterization; state space averaging technique; transformer winding; unbalanced secondary winding; voltage 48 V; voltage 5 V; Clamps; Converters; Inductance; Inductors; Integrated circuit modeling; Mathematical model; Rectifiers; Active Clamp; Forward Converter; Small signal modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Sustainable Energy Technologies (ICSET), 2010 IEEE International Conference on

Conference_Location

Kandy

Print_ISBN

978-1-4244-7192-8

Type

conf

DOI

10.1109/ICSET.2010.5684957

Filename

5684957