Tunable synchronous rectifier

摘要

A system for power transfer is provided. In one exemplary embodiment, the system includes an inductive power device, such as a device that transmits or receives power over an inductive coupling. For example, an adjustable impedance is coupled to the inductive power device, where the adjustable impedance is used for dynamically controlling the power gain in the inductive power device, such as by damping power generated by circuit impedances, such as inductances, capacitances or resistances, and combinations thereof.

主权项

1. A system for power transfer comprising:
an inductive power device; an adjustable impedance coupled to the inductive power device, the adjustable impedance for dynamically controlling the gain in the inductive power device; and an impedance controller for setting an impedance value of the adjustable impedance, wherein the impedance controller is configured to periodically determine whether optimized power is present in a received power signal and to adjust the impedance value of the adjustable impedance to reduce attenuation of the received power signal.