Title :
A novel isolated current sensor for high-performance power electronics applications
Author :
Dalessandro, L. ; Karrer, N. ; Kolar, J.W.
Author_Institution :
Swiss Fed. Inst. Of Technol. Zurich, Switzerland
Abstract :
A planar current sensor, comprised of a magnetic current transformer and a Hall-effect element, is presented. The sensor has a broad frequency bandwidth from DC up to 30 MHz, a high current rating (40 A DC), superior linearity, high EMI immunity, small size, robustness and low realization cost. The main design formulations are given analytically; simulations and finite element results are presented for verification. Experimental results of current step response and dv/dt immunity are included.
Keywords :
Hall effect devices; power electronics; sensors; transformers; 40 A; Hall effect element; current step response; isolated current sensor; magnetic current transformer; planar current sensor; power electronics applications; Bandwidth; Costs; Current transformers; Electromagnetic interference; Frequency; Linearity; Magnetic analysis; Magnetic sensors; Power electronics; Robustness;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620594
