Patent ID: 6552919
Filing Date: 2003-04-22
Classification: H02M,Y02B

Abstract:
A method for use in a power converter, said method comprising:monitoring a magnitude of an input of a power-flow controller; generating a pulse-width modulated signal wherein at least one pulse has width correlated with a difference between a reference and the monitored magnitude, wherein said generating includes adjusting a pulse width in response to a time during which a reference saw-tooth waveform magnitude substantially exceeds the monitored magnitude, wherein said adjusting includes summing a saw-tooth waveform with a DC offset to achieve the reference saw-tooth waveform magnitude, wherein said summing includes adjusting the saw-tooth waveform amplitude in response to at least one variation in an output voltage magnitude of the power-flow controller; and varying an output power flow of the power-flow controller in response to the pulse-width modulated signal.