Wireless power transmission systems and methods with signal damping operating modes

A wireless power transmission system comprising:

• a transmission antenna configured to couple with at least one other antenna and transmit alternating current (AC) wireless signals to the at least one antenna, the AC wireless signals including wireless power signals and wireless data signals, wherein the wireless data signals are one of on-off-keyed (OOK) in-band data signals or amplitude-shift-keyed (ASK) in-band data signals;
• an amplifier, the amplifier including:
• at least one transistor that is configured to (i) receive a driving signal at a gate of the at least one transistor, the driving signal configured to drive the transmission antenna based on an operating frequency for the wireless power transmission system and (ii) invert a direct current (DC) input power signal based on the driving signal, to generate the AC wireless signals at an operating frequency, and
• a damping circuit that is configured to dampen the AC wireless signals during transmission of the wireless data signals, wherein the damping circuit includes at least a damping transistor that is configured to receive damping signals for switching the damping transistor to control damping during transmission of the wireless data signals;
• and
• a transmission controller that is configured to (i) provide the driving signals to the at least one transistor, (ii) determine an operating mode for signal damping during transmission or receipt of wireless data signals by selecting one of a switching mode or an activation mode for the operating mode, (iii) generate the damping signals based on the operating mode, wherein when the operating mode is the switching mode, the damping signals are substantially opposite signals of the wireless data signals, such that the damping signals are in a “high” state when the wireless data signals are in a “low” state and the damping signals are in a “low” state when the wireless data signals are in a “high” state, and (iv) perform one or more of encoding the wireless data signals, decoding the wireless data signals, receiving the wireless data signals, or transmitting the wireless data signals.

A non-transitory, machine-readable medium storing instructions, which, when executed, cause a controller to:

• determine a driving signal for driving a transmitter antenna of a wireless power transmission system, the driving signal based, at least, on an operating frequency for the wireless power transmission system;
• provide the driving signal to at least one transistor of an amplifier of the wireless power transmission system at a gate of the at least one transistor;
• determine an operating mode for signal damping during transmission or receipt of wireless data signals by selecting one of a switching mode or an activation mode for the operating mode, wherein the wireless data signals are one of on-off-keyed (OOK) in-band data signals or amplitude-shift-keyed (ASK) in-band data signals;
• determine damping signals for a damping transistor of a damping circuit, the damping signals configured for switching the damping transistor, based on the operating mode, to control signal damping during transmission or receipt of wireless data signals in-band of AC wireless signals of the wireless power transmission system, the AC wireless signals generated based on the driving signal, wherein when the operating mode is the switching mode, the damping signals are substantially opposite signals of the wireless data signals, such that the damping signals are in a “high” state when the wireless data signals are in a “low” state and the damping signals are in a “low” state when the wireless data signals are in a “high” state;
• and
• provide the damping signals to the damping circuit, the damping signals instructing the damping circuit to selectively damp the AC wireless signals based, at least in part, on wireless data signals that are in-band of the AC wireless signals.