CLASS E AMPLIFIER OVERLOAD DETECTION AND PREVENTION

摘要

A method and apparatus for amplifiers for wireless power transfer, in which a method of wireless charging is provided comprising opening a switching element of an amplifier circuit coupled to a coil configured to wirelessly transfer power to a receiver during a first phase, closing the switching element during a second phase in response to determining that a voltage across the switching element falls below a threshold value, and closing the switching element during a third phase.