Systems and methods for providing a power signal to one or more implantable devices include a number of dynamic range amplifiers each having a multiplicity of output drivers. Each of the output drivers is configured to generate an output signal. The systems and methods further include control circuitry configured to select at least one of the amplifiers to provide a number of output signals used to generate the power signal that is to be provided to the one or more implantable devices. The control circuitry is further configured to disable the output drivers corresponding to a remaining number of amplifiers. A matching circuit is configured to generate the power signal based on the output signals provided by the at least one selected amplifier. The systems and methods further include means to transmit the power signal to the one or more implantable devices.