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Title: Load-independent current output of inductive power transfer converters with optimized efficiency
Authors: Zhang, W
Wong, SC 
Tse, CK 
Chen, Q
Issue Date: 2014
Source: 2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014, 2014, 6869772, p. 1425-1429
Abstract: Inductive power transfer (IPT) systems are resonant converters whose output characteristics are mostly load dependent. Conditions for ensuring a load-independent voltage-transfer ratio of an IPT system have been studied. However, load-independent current output can be more desirable for applications such as battery charging and LED driving. This paper studies the characteristics of IPT systems operating at different frequencies as transconductance converters. Operating frequencies for load-independent transconductance are explored, looking for optimal efficiency. The frequencies interested are found to facilitate the design of a current-output IPT converter with efficient power conversion. The analysis is supported by experimental results.
Keywords: Compensation topology
Inductive power transfer
Load-independent transconductance
Wireless power transmission
Publisher: IEEE
ISBN: 9781479927050
DOI: 10.1109/IPEC.2014.6869772
Description: 7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014, Hiroshima, 18-21 May 2014
Appears in Collections:Conference Paper

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