NEGATIVE VOLTAGE GENERATOR WITH A CHARGE PUMP CIRCUIT AND OPERATING METHOD THEREOF
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
May 17, 2023
filing date -
Dec 30, 2022
priority date (Note) -
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Abstract
A charge pump circuit includes a pump capacitor, a first transistor group configured to charge the pump capacitor based on a first clock signal having a first frequency, and a second transistor group configured to charge the pump capacitor based on a second clock signal having a second frequency different from the first frequency. A size of the second transistor group is different from a size of the first transistor group.
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