On the Elimination of Pulsed Output Current in Z-loaded Chargers/Rectifiers

Author

Carli, Giampaolo ; Williamson, Sheldon S.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

1754

Lastpage

1760

Abstract

As proven in literature, the Z-loaded rectifier is an alternative topology for PFC applications requiring wide output voltage controllability. The main advantage of the Z-rectifier is the availability of two control signals allowing buck-boost operation. This raises the possibility of regarding the Z-rectifier as a novel single-stage PFC converter with ripple-less output regulation, whereby one control signal is used for input current shaping, while the other for reduction of pulsating output current in charger applications. This paper qualifies the advantages over the typical 2-stage approach and describes how decoupling the two control signals and forcing one of them to be placed within its useful range can accomplish such a scheme. Simulations are presented to confirm the mathematical derivations.

Keywords

power convertors; power factor correction; rectifiers; voltage control; Z-loaded chargers; Z-rectifier; input current shaping; output voltage controllability; pulsed output current; single-stage PFC converter; Batteries; Capacitors; Circuit topology; Energy storage; Laboratories; Power electronics; Rectifiers; Shape control; Uniform resource locators; Voltage; Charger; converter; power electronics; power factor; rectifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802907

Filename

4802907