POWER CONVERTER USING CHARGE PUMP DIVIDER AND METHOD THEREFOR
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United States of America Patent
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Issued Date -
Feb 4, 2016
app pub date -
Jul 31, 2014
filing date -
Jul 31, 2014
priority date (Note) -
Abandoned
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Abstract
A power converter uses a charge pump divider that includes a capacitive divider core and a phase clock generator. The capacitive divider core has an input for receiving an input voltage and an output for providing an output voltage. In a first phase the capacitive divider core is adapted to couple a flying capacitor in series with an output capacitor. In a second phase the capacitive divider core is adapted to couple the flying capacitor in parallel with the output capacitor. The phase clock generator activates a first phase clock indicating the first phase when a flying voltage across the flying capacitor is less than a predetermined portion of the input voltage minus a peak voltage, and subsequently activates a second phase clock indicating the second phase when the flying voltage exceeds the predetermined portion of the input voltage plus the peak voltage.
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