Bridgeless PFC Using Single Sided High Frequency Switching
OwnerMarco Antonio Davilainventor
Life of this patent
Estimating the term…
Abstract
A new converter topology and control methods are presented that can be used for bridge less power factor conversion that are simple and do not introduce large common mode noise.
Claims15
A method of electronic power conversion with an inductor followed by a higher than line frequency switching half bridge combined with a diode half bridge to rectify and boost the input AC line.
The method of 1 with active bridges replacing the diode portion of the half bridge switched at the line frequency.
An electronic power control method employing rectifying circuitry and dual current thresholds to control both portions of the switching cycle for the rectifying circuitry.
An electronic power control method employing rectifying circuitry and a single current threshold that can be moved to either control the lower ramp threshold or upper ramp threshold for the rectifying circuitry.
The control method of 7 wherein the smaller of a positive ramp or negative ramp portion is used.
An electronic power control method employing rectifying circuitry and a single current threshold and calculating the total period required to achieve the other current threshold for the rectifying circuitry.
An electronic power control method employing rectifying circuitry and a single current threshold for the ramp up and calculating the ramp down time required and setting the ramp down time for the rectifying circuitry.
An electronic power control method employing rectifying circuitry and a single current threshold for the ramp down and calculating the ramp up time required and the setting the ramp up time of the rectifying circuitry.
Dependencies are inferred from the claim text.