Bootstrapped charge pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 5, 2002
Grant Date -
N/A
app pub date -
May 30, 2001
filing date -
May 30, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The diode drops associated with the output voltage from a conventional charge pump are eliminated in the present invention with a dual-chain charge pump that utilizes the pumped voltages from each charge pump chain to drive the gates of the other charge pump chain. As a result, the voltages on the gates of the transistors are pumped up to a level such that there is no threshold voltage drop across the transistor, and thus, making it behave like an ideal switch.
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