Power supply with adaptive-controlled output voltage
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United States of America Patent
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Jan 9, 2018
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app pub date -
Mar 11, 2013
filing date -
Mar 11, 2013
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Abstract
A power supply circuit includes a pre-regulator configured to receive an input voltage and to generate an output voltage, and a switching current regulator coupled to an output of the pre-regulator and configured to regulate a level of current supplied to an output load. The switching current regulator is controlled by a switching signal having a duty cycle. The circuit further includes a controller that generates the switching signal. The controller monitors the duty cycle of the switching signal and controls a level of the output voltage generated by the pre-regulator by providing a control signal in response to the duty cycle of the switching signal.
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