Adaptive duty cycle limiter and method

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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Reexamination Certificate

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07053594

ABSTRACT:
A duty cycle limiter for limiting a transfer of energy between an input source and a regulated output of an output regulator. The output regulator having a regulator characteristic and a computed duty cycle for controlling the transfer of energy between the input source and the regulated output. The duty cycle limiter including a digital controller to generate a reference level and to compare the regulator characteristic of the output regulator to the reference level to determine a maximum duty cycle. The digital controller to control the reference level at a frequency at least equal to a switching frequency of the output regulator. The digital controller to limit the computed duty cycle to the maximum duty cycle.

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