· This article presents a power converter and its control circuit
for high-frequency-fed ac to dc conversion.
· Based on the resonant technique, the input current is shaped to be sinusoidal and is forced to follow the high-frequency sinusoidal input voltage so as to achieve unity power factor.
· Based on the resonant technique, the input current is shaped to be sinusoidal and is forced to follow the high-frequency sinusoidal input voltage so as to achieve unity power factor.
·
With the proper selection of the characteristic impedance of the
resonant tank, the converter is able to perform the function of a buck, boost,
or buck–boost converter.
· The initial condition of the resonant tank is used to control the output voltage gain of the converter.
· The initial condition of the resonant tank is used to control the output voltage gain of the converter.
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