Title :
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
fDate :
6/23/1905 12:00:00 AM
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;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954037
