Circuit for generating high voltage
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United States of America Patent
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-
Oct 26, 2004
Grant Date -
Nov 28, 2002
app pub date -
May 24, 2002
filing date -
May 25, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit generating a high voltage and enabling a reduced power consumption by controlling the number of charge pumps in accordance with a current of an output terminal of a charge sensing unit. The circuit for generating a high voltage includes a charge pumping unit having a plurality of charge pumps, a current sensing unit generating a plurality of control signals by comparing currents flowing through final output terminals of the charge pumps to reference currents, respectively, and a control logic driving a plurality of the charge pumps in the charge pumping unit dynamically in accordance with a plurality of the control signals outputted from the current sensing unit.
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