Improved efficiency constant output power rectifier

Author

Dawes, Warwick G. ; Lyne, Alfred

Author_Institution

Emerson Energy Syst. Pty. Ltd., Johannesburg, South Africa

fYear

2000

fDate

2000

Firstpage

24

Lastpage

27

Abstract

A control method for improving the efficiency of constant output power telecommunication rectifiers by varying the power factor correction (PFC) boost voltage is described. Experimental results obtained from a 1500 W rectifier are used to demonstrate that the losses at the worst case operating point can be reduced by around 10% and the efficiency at nominal operating conditions can be improved by around 0.6%. An implementation of the control methodology is proposed and an overview of the tradeoffs between dynamic characteristics and minimum losses is made

Keywords

power factor correction; rectifying circuits; telecommunication power supplies; voltage control; 1500 W; PFC boost voltage variation; constant output power rectifier; control method; dynamic characteristics; efficiency; losses; minimum losses; nominal operating conditions; power factor correction; telecommunication rectifiers; worst case operating point; Boosting; Bridge circuits; Power generation; Power system dynamics; Power systems; Rectifiers; Telecommunication control; Temperature distribution; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2000. INTELEC. Twenty-second International

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-6407-4

Type

conf

DOI

10.1109/INTLEC.2000.884221

Filename

884221