Electricity: power supply or regulation systems – For reactive power control – Using converter
Reexamination Certificate
2008-04-11
2010-06-29
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
For reactive power control
Using converter
Reexamination Certificate
active
07746040
ABSTRACT:
An 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 has 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 is 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.
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Garrity Paul
Yang Zaohong
Berube Robert B.
Crouch Robert G.
Flextronics AP LLC
Marsh & Fischmann & Breyfogle LLP
Riley Shawn
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