Wireless power system with selectable control channel protocols

A wireless power receive unit, comprises:

• a wireless power receive circuit, when operable, converts a wireless power magnetic field from a wireless power transmit unit into a voltage;
• a receive unit transceiver operable to receive an identification packet on a control channel between the wireless power transmit unit and the wireless power receive unit;
• and
• a receive unit processing module operable to:
• identify a protocol version from an identification packet received on a control channel between the wireless power transmit unit and the wireless power receive unit;
• determine whether the receive unit transceiver is capable of communication using the identified protocol version;
• when the receive unit transceiver is capable of communication using the identified protocol version, coordinate configuration of the receive unit transceiver to transceive a communication regarding the wireless power magnetic field via the control channel using the identified protocol version.

A wireless power transmit unit, comprises:

• at least one wireless power transmit circuit operable to generate a wireless power magnetic field for magnetic coupling with at least one wireless power receive unit;
• at least one transceiver unit operable to:
• transmit at least a first communication on a control channel indicating a control channel protocol;
• and
• at least one processing module operable to:
• generate an indication of a control channel protocol, wherein the transmit unit transceiver transmits the indication of the control channel protocol;
• and
• convert inbound data received on the control channel in accordance with the identified control channel protocol.