CPC G01R 19/10 (2013.01) [G01R 31/3004 (2013.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); H04L 27/06 (2013.01)] | 20 Claims |
1. A method for demodulating data by a wireless charging transmitting device, comprising:
sensing a voltage signal of a coil used to wirelessly transmit a power signal from the wireless charging transmitting device, wherein a load impedance of the coil is modulated by data transmitted by a wireless charging receiving device;
sensing a current signal of the coil used to transmit the power signal using an adjustable sample-hold interval, wherein the adjustable sample-hold interval controls a timing for sampling the current signal; and
selecting dynamically between the sensed voltage signal or the sensed current signal to demodulate the data transmitted by the wireless charging receiving device.
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