Wireless power system

Abstract

A wireless power system includes a primary device and a secondary device. The primary device includes a power conversion unit, a function module, and a transceiver. The peripheral device includes a wireless power receiver circuit, a peripheral transceiver, and a peripheral unit. The power conversion unit converts a power source into an electromagnetic signal. The functional module executes a function regarding peripheral information. The transceiver communicates information regarding the electromagnetic signal and the peripheral information. The wireless power receiver circuit converts the electromagnetic signal into a voltage. The peripheral transceiver communicates the information regarding the electromagnetic signal and the peripheral information. The peripheral unit processes the peripheral information.

What is claimed is: 
     
         1 . A wireless power device comprising:
 a wireless power transmitter circuit,
 wherein the wireless power transmitter circuit is configured to generate a wireless power field, wherein the wireless power field is configured to conduct wireless power and data transmissions to a wireless power receiver; and 
   a processing circuit,
 wherein the processing circuitry is configured to transmit, via the wireless power transmitter circuit, a message to the wireless power receiver using a control channel of the generated wireless power field, 
 wherein the message indicates a control channel protocol, 
 and wherein the processing circuit is configured to demodulate inbound data received on the control channel based on the control channel protocol. 
   
     
     
         2 . The wireless power transmitter of  claim 1 , wherein the wireless power transmitter circuit comprises an inductive coil coupled to a power regulator. 
     
     
         3 . The wireless power transmitter of  claim 1 , wherein the inbound data is received as an amplitude modulation of the wireless power field. 
     
     
         4 . The wireless power transmitter of  claim 1 , wherein the processing circuit is configured to transmit the message utilizing frequency shift modulation of the wireless power field. 
     
     
         5 . The wireless power transmitter of  claim 1 , wherein the processing circuit is configured to communicate with the wireless power receiver utilizing a plurality of different control channel protocols, and wherein the processing circuit is configured to select one of the plurality of different control channel protocols based on negotiation information received from the wireless power receiver. 
     
     
         6 . The wireless power transmitter of  claim 5 , wherein the negotiation information includes information indicative of one or more of a control channel supported by the wireless power receiver, a desired data rate of the wireless power receiver, or an available bandwidth of the wireless power receiver. 
     
     
         7 . The wireless power transmitter of  claim 1 , further comprising a battery, wherein the battery is configured to store power for wireless power transmission. 
     
     
         8 . The wireless power transmitter of  claim 1 , wherein the wireless power transmitter circuit comprises a wireless power transceiver, wherein the wireless power transceiver is configured to receive power from a wireless power field and receive data transmissions from one or more wireless power devices. 
     
     
         9 . The wireless power transmitter of  claim 1 , wherein the control channel corresponds to a first frequency band for communication of control information, and wherein the wireless power transmitter is configured to communicate with the wireless power receiver on a data channel, wherein the data channel has a second frequency band for communication of data with the wireless power receiver. 
     
     
         10 . The wireless power transmitter of  claim 1 , further comprising a data channel transceiver, wherein the data channel transceiver is configured to communicate with a corresponding data channel transceiver of the wireless power receiver based on a data channel protocol. 
     
     
         11 . The wireless power transmitter of  claim 10 , wherein the processing circuit is configured to communicate the data channel protocol to the wireless power receiver utilizing the control channel. 
     
     
         12 . A wireless power device comprising:
 a wireless power receiver circuit, wherein the wireless power receiver circuit is configured to receive power and data transmissions from a wireless power field; and   a processing circuit coupled to the wireless power receiver circuit,   wherein the processing circuit is configured to receive a message indicating a selected control channel protocol from a wireless power transmitter,   wherein the message is received by the wireless power receiver circuit on a control channel of the wireless power field, and   wherein the processing circuit is configured to communicate with the wireless power transmitter on the control channel,   wherein the processing circuit utilizes the selected control channel protocol.   
     
     
         13 . The wireless power device of  claim 12 , wherein the wireless power receiver circuit comprises an inductive coil coupled to a power regulator. 
     
     
         14 . The wireless power device of  claim 12 , wherein the processing circuit is configured to transmit data to the wireless power transmitter as an amplitude modulation of the wireless power field. 
     
     
         15 . The wireless power transmitter of  claim 1 , wherein the processing circuit is configured to communicate with the wireless power transmitter utilizing a plurality of different control channel protocols, and wherein the selected control channel protocol is selected based on negotiation information transmitted to the wireless power transmitter by the wireless power receiver. 
     
     
         16 . The wireless power transmitter of  claim 15 , wherein the negotiation information includes information indicative of one or more of a control channel supported by the wireless power receiver, a desired data rate of the wireless power receiver, or an available bandwidth of the wireless power receiver. 
     
     
         17 . The wireless power transmitter of  claim 12 , wherein the wireless power receiver circuit comprises a wireless power transceiver configured to receive power from a wireless power field and receive data transmissions from one or more wireless power devices. 
     
     
         18 . The wireless power transmitter of  claim 12 , wherein the selected control channel corresponds to a first frequency band for communication of control information, and wherein the wireless power receiver is configured to communicate with the wireless power receiver on a data channel having a second frequency band for communication of data with the wireless power transmitter. 
     
     
         19 . The wireless power transmitter of  claim 1 , further comprising a data channel transceiver configured to communicate with a corresponding data channel transceiver of the wireless power transmitter based on a data channel protocol. 
     
     
         20 . The wireless power transmitter of  claim 19 , wherein the processing circuit is configured to receive the data channel protocol from the wireless power transmitter utilizing the control channel.