AUTHORS: Eleni Gati, Alexandros Moiropoulos, Stefanos Manias
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ABSTRACT: In this work, a semi-controlled rectifier is proposed for the secondary side of a series-series compensated inductive power transfer system, in order to regulate the power provided to the load. The control strategy is based on dynamic mode change between the conventional full-wave rectification and asymmetric loading, in order to reach and maintain the desirable output power. The asymmetric loading mode of operation leads to up to four times higher output power than conventional full-wave rectification. This allows for a wide range of output power regulation. Simulation results show a good response to pre-set values or characteristics and steady output power. The proposed rectifier is suitable for wireless chargers with wide output power specifications.
KEYWORDS: inductive charger, asymmetric loading, resonant circuit, output power control, wireless power transfer
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