A power transmission system for wirelessly supplying power to a load comprising: a transmitter inductor; a first switch (SW-A) coupled between a voltage source (Vs) and the transmitter inductor and controlled to generate a varying current through the transmitter inductor; a receiver inductor magnetically coupled to the transmitter inductor; a voltage regulator receiving power from the receiver inductor to generate a regulator output voltage; a load (R L) coupled to an output of the voltage regulator, wherein power in the transmitter inductor is wirelessly coupled to the receiver inductor for being converted to a regulated voltage by the regulator for driving the load; a peak voltage detector coupled to detect a peak voltage on the transmitter inductor, wherein a peak voltage on the transmitter inductor is affected by an ability of the voltage regulator to achieve regulation for driving the load; and a controller for controlling a peak current through the transmitter inductor, the controller being controlled to modulate the peak current through the transmitter inductor so as to modulate a peak current through the receiver inductor, wherein the peak voltage on the transmitter inductor increases during a time when the voltage regulator is able to achieve regulation, characterized in that the controller is configured to variably increase and decrease the peak current through the transmitter inductor, by modulating the peak current through the transmitter inductor, to detect a level of the peak current through the transmitter inductor that corresponds with the increase of the peak voltage as a result of the voltage regulator achieving regulation, and wherein the controller is controlled to temporarily cease modulating the peak current through the transmitter inductor, as a result of detecting the increase of the peak voltage, to limit the peak current through the transmitter inductor to a level adequate to supply sufficient voltage to the voltage regulator necessary to achieve regulation. a transmitter inductor; a first switch (SW-A) coupled between a voltage source (Vs) and the transmitter inductor and controlled to generate a varying current through the transmitter inductor; a receiver inductor magnetically coupled to the transmitter inductor; a voltage regulator receiving power from the receiver inductor to generate a regulator output voltage; a load (R L) coupled to an output of the voltage regulator, wherein power in the transmitter inductor is wirelessly coupled to the receiver inductor for being converted to a regulated voltage by the regulator for driving the load; a peak voltage detector coupled to detect a peak voltage on the transmitter inductor, wherein a peak voltage on the transmitter inductor is affected by an ability of the voltage regulator to achieve regulation for driving the load; and a controller for controlling a peak current through the transmitter inductor, the controller being controlled to modulate the peak current through the transmitter inductor so as to modulate a peak current through the receiver inductor, wherein the peak voltage on the transmitter inductor increases during a time when the voltage regulator is able to achieve regulation, characterized in that the controller is configured to variably increase and decrease the peak current through the transmitter inductor, by modulating the peak current through the transmitter inductor, to detect a level of the peak current through the transmitter inductor that corresponds with the increase of the peak voltage as a result of the voltage regulator achieving regulation, and wherein the controller is controlled to temporarily cease modulating the peak current through the transmitter inductor, as a result of detecting the increase of the peak voltage, to limit the peak current through the transmitter inductor to a level adequate to supply sufficient voltage to the voltage regulator necessary to achieve regulation.