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This paper proposes an adaptive voltage-controlled oscillator (VCO) to improve the dynamic performance in LLC resonant converters. The proposed adaptive VCO is designed to have frequency-dependent small-signal gains, so that the variation of low-frequency magnitude in frequency response of LLC resonant converter is effectively adjusted. As a result, an enhanced dynamic performance is obtained over...
This paper proposes gain-scheduled control using voltage controlled oscillator with variable gain for a LLC resonant converter to improve the dynamic performance. Considering the effect of switching frequency to the gain function of a LLC resonant converter, control loop gain is scheduled by voltage controlled oscillator with a frequency-dependent gain. The effective gain function for VCO is proposed,...
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