Patent ID: 7738271
Filing Date: 2010-06-15
Classification: H02M,Y02B

Abstract:
1. A method of controlling the operation of a resonant charge transfer device comprising a first filter section, a first switch section, a charge storage device, a second switch section, and a second filter section, the method comprising: specifying a desired output; specifying a desired charge storage voltage ratio; determining one or more first switch times at which one or more first switches will turn on; turning on the first switches at the first switch times; determining one or more second switch times at which one or more second switches will turn on; turning on the second switches at the second switch times; measuring an actual output of the device; measuring at one or more specific times one or more parameters associated with each of the first filter section, and the charge storage section; computing an actual charge storage voltage ratio from the measured charge storage section parameters; comparing the desired output to the actual output and the desired charge storage voltage ratio to the actual charge storage voltage ratio to formulate an output correction parameter; utilizing the measured first filter parameters, the measured charge storage section parameters, and the output correction parameter to compute one or more corrected first switch times; utilizing the measured first filter parameters, the measured charge storage section parameters, and the output correction parameter to compute one or more corrected second switch times; on a subsequent operation cycle of the resonant charge transfer device, turning on the one or more first switches at the corrected first switch times; and on a subsequent operation cycle of the resonant charge transfer device, turning on the second switches at the corrected second switch times.