Operating frequency based power level altering in extended range wireless power transmitters

A wireless power transfer system comprising:

• a power receiver that (i) is configured to send a power request signal to a power transmitter and (ii) comprises a receiver coil configured to receive a wireless power transmission from a transmitter coil of the power transmitter;
• the power transmitter comprising:
• a power input in operative association with an external power supply and configured to receive a direct current (“DC”) input power from the external power supply;
• an inverter circuit configured to (i) receive the DC input power via the power input in response to a power control signal that is configured to control input from the external power supply, (ii) receive a driving signal that is configured to generate an alternating current (“AC”) power signal for transmitting wireless power, and (iii) convert the DC input power to the AC power signal, based on the driving signal;
• and
• the transmitter coil configured to, based on the AC power signal, transmit the wireless power transmission to the receiver coil of the power receiver;
• and
• a transmitter controller comprising:
• at least one processor;
• at least one non-transitory machine-readable medium;
• and
• program instructions provisioned on the at least one non-transitory machine-readable medium that, when executed by the at least one processor, cause the transmitter controller to:
• receive the power request signal from the power receiver;
• determine a power requirement for the wireless power transmission based on the power request signal;
• determine the power control signal based on the power requirement, the power control signal configured to instruct the external power supply to select a DC voltage for the DC input power from a set of DC voltage levels, the set of DC voltage levels comprising a first DC voltage level associated with a first AC power signal level and a second DC voltage level associated with a second AC power signal level;
• determine an operating frequency from an operating frequency range for the driving signal, the operating frequency associated with a third AC power signal level that is greater than the first AC power signal level and less than the second AC power signal level;
• generate the driving signal based on the operating frequency;
• and
• provide the power control signal to the external power supply.