New constant-frequency multiresonant boost convertor

A new zero-voltage-switching multiresonant boost convertor operating at constant switching frequency is presented. Its output voltage is regulated by controlling the freewheeling period of the resonant inductor. It possesses the advantages of a PWM convertor and frequency-modulated multiresonant convertor. Moreover, by absorbing all major parasitic components in its resonant circuit, parasitic ringing is eliminated. >

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