Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-10-19
2008-03-11
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
Reexamination Certificate
active
07342388
ABSTRACT:
Low ripple line-state dependent PWM DCDC converter controllers and methods for subscriber line interface circuit switching load regulation. In accordance with the method, line state is monitored to determine the target voltage for that state, and a DCDC converter is controlled responsive to the line state and the difference between the actual line voltage and the target voltage for that line state. The differences between the actual line voltage and the target voltage for that line state are split into different ranges, each range having a skip step size and a step size associated therewith, the step size determining how many equal pulse width pulses will be provided to the converter before the pulse width is adjusted by the step size and the process repeated. Apparatus for practicing the invention and variations thereof are disclosed.
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Hong-Wei Huang et al., “Dithering Skip Modulator with a Novel Load Sensor for Ultra-wide-load High-Efficiency DC-DC Converters”, Proceedings of the 2006 International Symposium on Low Power Electronics and Design, 2006, pp. 388-393.
Blakely , Sokoloff, Taylor & Zafman LLP
Riley Shawn
Winbond Electronics Corporation
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