Patent ID: 11892484
Assignee: CYPRESS SEMICONDUCTOR CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. An apparatus comprising:
a coil configured to wirelessly transmit a power signal, wherein a load impedance of the coil is modulated by data transmitted by a receiving device receiving the power signal;
a voltage sensing circuit configured to sense a voltage signal of the coil;
a current sensing circuit configured to sense a current signal of the coil using an adjustable sample-hold interval, wherein the adjustable sample-hold interval controls a timing used to sample the current signal; and
a processor configured to:
select dynamically between the sensed voltage signal from the voltage sensing circuit or the sensed current signal from the current sensing circuit to demodulate the data transmitted by the receiving device.