Variable reactive element in a resonant converter circuit

Details Variable reactive element in a resonant converter circuit Variable reactive element in a resonant converter circuit

2004-05-21

2011-11-01

Sterrett, Jeffrey L (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S021020, C363S025000, C363S134000

Reexamination Certificate

active

08050068

ABSTRACT:
A resonant converter is provided which may be used for supplying power to the primary conductive path of an inductively coupled power transfer (ICPT) system. The converter includes a variable reactive element in the resonant circuit which may be controlled to vary the effective inductance or capacitance of the reactive element. The frequency of the converter is stabilised to a nominal value by sensing the frequency of the converter resonant circuit, comparing the sensed frequency with a nominal frequency and varying the effective inductance or capacitance of the variable reactive element to adjust the converter frequency toward the nominal frequency.

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