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1. (WO2016057395) CIRCUIT AND METHOD FOR A RESONANT TANK

Pub. No.:    WO/2016/057395    International Application No.:    PCT/US2015/054003
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Tue Oct 06 01:59:59 CEST 2015
IPC: H02M 3/337
Applicants: GENERAL ELECTRIC COMPANY
Inventors: RAMABHADRAN, Ramanujam
CARLI, Giampaolo
MAO, Saijun
Title: CIRCUIT AND METHOD FOR A RESONANT TANK
Abstract:
A power conversion circuit is provided. The power conversion circuit includes a square wave generator, a resonant tank, a transformer and a controller. The square wave generator is for generating a square wave power. The resonant tank is for receiving the square wave power and outputting a first resonant power. The resonant tank includes a capacitor, an inductor and a controllable capacitive device. The transformer is coupled with the controllable capacitive device for receiving the first resonant power and outputting a second resonant power. A rectified second resonant power is provided to a load. The controller is for generating a switching signal to the controllable capacitive device based on a comparison result between a threshold signal and a signal calculated based on at least one detected signal of the load. A method for controlling a power conversion circuit and a resonant tank are also provided.