Generating boosted voltages with a hybrid charge pump
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United States of America Patent
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Nov 7, 2023
Grant Date -
Aug 17, 2023
app pub date -
Feb 11, 2022
filing date -
Feb 11, 2022
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Abstract
A hybrid charge pump is disclosed that employs novel arrangements of depletion-mode n-channel semiconductor devices and enhancement-mode p-channel semiconductor devices that eliminate or otherwise substantially reduce voltage drops that would otherwise occur across semiconductor device arrangements in existing charge pumps. As a result, the hybrid charge pump disclosed herein achieves the same output voltages as conventional charge pumps while requiring a reduced physical die area. Additionally, a hybrid charge pump arrangement disclosed herein employs a novel clocking scheme that reduces or eliminates reverse currents in the hybrid charge pump arrangement.
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