Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2005-06-21
2005-06-21
Nguyen, Matthew V. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S222000
Reexamination Certificate
active
06909266
ABSTRACT:
The output voltage of a power converter is regulated by comparing the output voltage to a target output voltage during a first time interval and calculating an inductor current required in a second time interval immediately following the first time interval to increase the output voltage to the target output voltage in the second time interval. The duty cycle of a switch in the power converter is varied to modify the current in the inductor during the second time interval according to the calculated next current and a saturation current of the inductor. In one embodiment the power converter includes a reference resistor. By measuring the voltage across the reference resistor at certain times various parameters, including coil inductance and capacitor capacitance, are calculated. In some embodiments a linear model of the power converter is used.
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Fraser David F.
Kernahan Kent
Roan Jack
Fyre Storm, Inc.
MacPherson Kwok & Chen & Heid LLP
Nguyen Matthew V.
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