A method of operating an inductive power supply for a remote device, the method including the steps of: applying power to a tank circuit within the inductive power supply, the power applied to the tank circuit having an operating frequency, a rail voltage, a duty cycle and the tank circuit having an adjustable resonant frequency; establishing an inductive coupling between the inductive power supply and the remote device with initial operating frequency, rail voltage, duty cycle and adjustable resonant frequency of the tank circuit and entering an idle state; repeatedly monitoring at least one operating parameter of the inductive power supply after establishing the inductive coupling and, according to this monitoring: a) when the at least one operating parameter of the inductive power supply is within a nominal range, returning to the idle state, b) when the at least one operating parameter of the inductive power supply is not within a nominal range, reconfiguring the inductive power supply by: - adjusting at least a first characteristic of the power supply, the first characteristic being one of the said operating frequency, the said rail voltage, or the said duty cycle; - adjusting a second characteristic of the power supply, the second characteristic being the resonant frequency of the tank circuit; - if following the adjusting of the second characteristic, the at least one operating parameter is within the nominal range, store and use the settings defined by the said at least one first characteristic, the second characteristic and the at least one operating parameter; and - if following the adjusting of the second characteristic, the at least one operating parameter is not within the nominal range, find and use the best stored prior setting. applying power to a tank circuit within the inductive power supply, the power applied to the tank circuit having an operating frequency, a rail voltage, a duty cycle and the tank circuit having an adjustable resonant frequency; establishing an inductive coupling between the inductive power supply and the remote device with initial operating frequency, rail voltage, duty cycle and adjustable resonant frequency of the tank circuit and entering an idle state; repeatedly monitoring at least one operating parameter of the inductive power supply after establishing the inductive coupling and, according to this monitoring: a) when the at least one operating parameter of the inductive power supply is within a nominal range, returning to the idle state, b) when the at least one operating parameter of the inductive power supply is not within a nominal range, reconfiguring the inductive power supply by: - adjusting at least a first characteristic of the power supply, the first characteristic being one of the said operating frequency, the said rail voltage, or the said duty cycle; - adjusting a second characteristic of the power supply, the second characteristic being the resonant frequency of the tank circuit; - if following the adjusting of the second characteristic, the at least one operating parameter is within the nominal range, store and use the settings defined by the said at least one first characteristic, the second characteristic and the at least one operating parameter; and - if following the adjusting of the second characteristic, the at least one operating parameter is not within the nominal range, find and use the best stored prior setting. a) when the at least one operating parameter of the inductive power supply is within a nominal range, returning to the idle state, b) when the at least one operating parameter of the inductive power supply is not within a nominal range, reconfiguring the inductive power supply by: - adjusting at least a first characteristic of the power supply, the first characteristic being one of the said operating frequency, the said rail voltage, or the said duty cycle; - adjusting a second characteristic of the power supply, the second characteristic being the resonant frequency of the tank circuit; - if following the adjusting of the second characteristic, the at least one operating parameter is within the nominal range, store and use the settings defined by the said at least one first characteristic, the second characteristic and the at least one operating parameter; and - if following the adjusting of the second characteristic, the at least one operating parameter is not within the nominal range, find and use the best stored prior setting. - adjusting at least a first characteristic of the power supply, the first characteristic being one of the said operating frequency, the said rail voltage, or the said duty cycle; - adjusting a second characteristic of the power supply, the second characteristic being the resonant frequency of the tank circuit; - if following the adjusting of the second characteristic, the at least one operating parameter is within the nominal range, store and use the settings defined by the said at least one first characteristic, the second characteristic and the at least one operating parameter; and - if following the adjusting of the second characteristic, the at least one operating parameter is not within the nominal range, find and use the best stored prior setting.