Charge pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 2013
Grant Date -
Aug 9, 2012
app pub date -
Feb 7, 2011
filing date -
Feb 7, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Traditionally, charge pumps, which used flying capacitors, were limited to a maximum divide ratio of N+1 (where N is the number of flying capacitors). Here, however, a charge pump has been provided that allows for a dramatically increased divide ratio. Specifically, several switched capacitor circuits (which are controlled by a driver) allow for flying capacitors to be arranged to provide a maximum divide ratio of 3·2(N-1)−1.
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