Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Reexamination Certificate
2007-10-30
2007-10-30
Laxton, Gary L. (Department: 2838)
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
C323S299000, C323S207000
Reexamination Certificate
active
11012511
ABSTRACT:
A power supply system is disclosed. In one embodiment the power supply system includes a source of DC power that provides a DC bus voltage between a pair of DC bus terminals, and a power supply that receives power from the DC bus terminals and delivers power to a load. An output measurement circuit measures output parameters delivered by the power supply and provides a corresponding set of feedback signals. A feedback regulator connected receives the feedback signals and provides a feedback output signal operative to regulate the output of the power supply to achieve a desired voltage, current, or power level specified by a setpoint signal. An adaptive feedforward circuit connected to the feedback regulator and to the DC bus terminals provides a combined regulation signal to the power supply that minimizes perturbations in the output of the power supply due to DC bus ripple voltage.
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Barry Arbetter and Dragan Maksimovic; Feed-Forward Pulse-Width Modulators for Switching Power Converters; 1995 IEEE, pp. 601-607.
Advanced Energy Industries Inc.
Behm Harry
Laxton Gary L.
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