A digital controller for controlling a regulated output of an output regulator. The output regulator responsive to a pulse width signal for controlling the transfer of energy between an input source and the regulated output. The digital controller including a duty cycle estimator to determine a nominal duty cycle. An adjust determiner to determine an adjustment value to combine with the nominal duty cycle to generate an adjusted duty cycle. The pulse width signal being a function of the adjusted duty cycle.

 
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> Power supply control circuit and control method thereof

~ 00425