Low gain wireless power transfer system and method

A method comprising:

• determining, by a controller, an operating mode of a wireless power transfer system comprising a transmitter coil, a plurality of receiver coils, a rectifier circuit coupled to the plurality of receiver coils and an auxiliary switch connected in series with one receiver coil of the plurality of receiver coils;
• in response to a low power mode of the wireless power transfer system, turning on the auxiliary switch through a signal generated by the controller, wherein as a result of turning on the auxiliary switch, at least two receiver coils of the plurality of receiver coils are connected in series to boost a gain of the wireless power transfer system, wherein a first receiver coil of the plurality of receiver coils and a first capacitor are connected in series between a first midpoint of the rectifier circuit and a second midpoint of the rectifier circuit, and a second receiver coil of the plurality of receiver coils, a second capacitor and the auxiliary switch are connected in series between the first midpoint of the rectifier circuit and ground;
• and
• in response to a high power mode of the wireless power transfer system, turning off the auxiliary switch through the signal generated by the controller, wherein as a result of turning off the auxiliary switch, a gain of the wireless power transfer system is reduced.