Hybrid power supply circuit and method for charging/discharging a logic circuit using the same
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United States of America Patent
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-
Apr 1, 2003
Grant Date -
Oct 31, 2002
app pub date -
Feb 11, 2002
filing date -
Mar 9, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hybrid power supply circuit for supplying a power to a logic circuit performing a digital logic process and for controlling the charging/discharging of the logic circuit. The power supply circuit has an adiabatic power supply portion for charging/discharging the logic circuit in such a manner to suppress a sudden current change during initial time after the input signal changes, and a CMOS power supply portion for quickly charging/discharging the logic circuit to supply power level/ground level after the charging/discharging by the adiabatic power supply portion. The energy consumption of the circuit decreases even in a digital system having a plurality of logic circuits.
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