Patent ID: 9680337
Date: 2017-06-13
CPC Classifications: H02J

Claim:
1. A multi-protocol wireless power transmitter, comprising: a switch network configured to receive power from a power source; a variable matching circuit connected to said switch network; a first circuit connected to said variable matching circuit, said first circuit comprising either one or more inductors to emanate power via a magnetic field or one or more capacitors to emanate power via an electric field, wherein said first circuit transmits said power to said wireless power receiver in a single power transfer mode comprising one of a magnetic field power transfer mode and an electric field power transfer mode; a modulator/demodulator block configured to transmit and receive messages to and from said wireless power receiver in one of a plurality of wireless power protocols; a control logic circuit and an ADC block, said multi-protocol wireless power transmitter, on detection of presence of said wireless power receiver in a vicinity, configured to sequentially parse one of a plurality of test conditions to identify said wireless power protocol of said wireless power receiver, wherein each of said test conditions comprises instructions to reconfigure a circuit configuration of said multi-protocol wireless power transmitter to transmit said power in said single power transfer mode and to transmit said messages and interpret said received messages in said one of said wireless power protocols, wherein said reconfiguration of said circuit configuration of said multi-protocol wireless power transmitter based on said instructions in one of said sequentially parsed test conditions comprises: said multi-protocol wireless power transmitter configured to identify a match if said one of said wireless power protocols of said multi-protocol wireless power transmitter match said one of said wireless power protocols of said wireless power receiver; and said multi-protocol wireless power transmitter configured to transmit said power in said single power transfer mode and to transmit said messages and interpret said received messages to and from said wireless power receiver in said one of said wireless power protocols of said wireless power receiver based on said identified match.