High efficient input current shaping for ac to dc converters with power factor correction requirement
AssigneeFlextronics AP, LLC
InventorsPaul Garrity, Zaohong Yang
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AssigneeFlextronics AP, LLC
InventorsPaul Garrity, Zaohong Yang
Estimating the term…
A high efficient input current shaping AC to DC converter with PFC front end that reduces input current harmonics is provided. In one embodiment, an AC to DC converter connectable with an alternating current source and operable to output a direct current comprises a PFC front end followed by a DC/DC converter. The PFC front end reduces harmonic components present in an input current waveform received by the PFC front end from the alternating current source and includes current steering circuitry and, optionally, valley filling circuitry. The DC/DC converter comprises one that presents pure resistive input impedance to the PFC front end. The DC/DC converter outputs the direct current to a load connected thereto.
An AC to DC converter connectable with an alternating current source and operable to output a direct current, said converter comprising:
AC to DC conversion means connectable with an alternating current source and operable to output a direct current, said conversion means comprising:
A current shaping AC to DC converter, said converter comprising:
Dependencies are inferred from the claim text.