Current sensing is widely used in power electronic applications such as dc-dc power converters and adjustable-speed motor drives. Such power converters are the basic building blocks of drivetrains in electric, hybrid, and plug-in hybrid electric vehicles. The performance and control of such vehicles depend on the accuracy, bandwidth, and efficiency of its sensors. Various current-sensing techniques based on different physical effects such as Faraday's induction law, Ohm's law, Lorentz force law, the magnetoresistance effect, and the magnetic saturation effect are described in this paper. Each technique is reviewed and examined. The current measurement methods are compared and analyzed based on their losslessness, simplicity, and ease of implementation.
A. Patel and M. Ferdowsi, "Current Sensing for Automotive Electronics -- A Survey," IEEE Transactions on Vehicular Technology, Institute of Electrical and Electronics Engineers (IEEE), Oct 2009.
The definitive version is available at http://dx.doi.org/10.1109/TVT.2009.2022081
Electrical and Computer Engineering
National Science Foundation (U.S.)
Keywords and Phrases
Automotive Electronics; Current Sensing; Power electronics
Article - Journal
© 2009 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.