On the use of current sensors for control of power converters

Author

Qiu, D.Y. ; Yip, S.C. ; Chung, Henry S H ; Hui, S.Y.R.

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, China

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

302

Abstract

This paper investigates the use of current sensors for the control of power converters. The whole system only requires current sensing devices that generate signals in response to the current flowing in inductors. Besides, such as used in current programming and in maximum current protection, the sensed current and the rate of change of the inductor current in different circuit topologies are used to determine the input and output voltages. Apart from reducing the number of sensors, the proposed method provides inherent electrical isolation between the power conversion stage and the controller, thus reducing noise coupling

Keywords

electric current measurement; electric sensing devices; power convertors; power inductors; voltage control; current programming; current sensing devices; current sensors; electrical isolation; inductor current measurement; input voltages; maximum current protection; noise coupling reduction; output voltages; power converter control; Circuit noise; Circuit topology; Coupling circuits; Inductors; Noise reduction; Optical noise; Optical sensors; Power conversion; Power system protection; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954037

Filename

954037