Regulator for pumped voltage generator
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United States of America Patent
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Nov 12, 1996
Issued Date -
N/A
app pub date -
Jan 3, 1994
filing date -
Oct 30, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
According to the invention, a regulated voltage pump is provided which uses a chain of diodes between each of which is attached one plate of a capacitor for which the other plate is driven by a clock signal. The regulated voltage pump of the present invention uses feedback from the output signal to determine how many capacitors to pump. A comparator compares a signal related to the pumped output signal to a reference voltage (which may be the power supply voltage) and controls how many intermediate pumping capacitors receive a switching clock signal. Thus a regulated pumped voltage is provided.
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