Patent ID: 8427102
Filing Date: 2013-04-23
Classification: H02J

Abstract:
1. An apparatus comprising: a secondary charging coil receiver module configured to inductively receive a current, where the current charges a battery and powers a cellular transceiver and where the current received by the secondary charging coil is received from a primary coil of a power conversion system; a secondary power control processor that modulates a load to transmit charge control packets to a power control processor of the power conversion system through the primary coil; a current processor that measures an average current delivered through the secondary charging coil to the battery and associated electronics powered by the battery, the average current delivered includes an average of charging current and a peak transmitter current, the current processor is configured to calculate a current limit threshold value from the average current, and the threshold value includes the average current plus a predetermined incremental value; and a current limiter that limits the charge current to the battery and transceiver based upon the average current, the current limiter configured to substantially minimize the dynamic loading of the transceiver from corrupting a modulated load that provides transmit charge control packets to the primary coil.