Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2008-12-19
2010-06-01
Behm, Harry (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S225000, C323S268000
Reexamination Certificate
active
07728563
ABSTRACT:
A digital multilevel memory system includes a charge pump and a voltage regulator for generating regulated high voltages for various memory operations. The charge pump may include a plurality of boost circuits to boost the output of the charge pump during a fast start up. Afterwards, the boost circuits are disabled to allow the charge pump to generate high voltages without boosting. The boost circuits may be successively enabled to boost the voltage. The boost circuits may be loadless. The voltage regulator may operate in an open loop and may include a resistive divider as a reference voltage for regulating the high voltage from the charge pump. The charge pump may include spread spectrum pump clocking to reduce electromagnetic inference for capacitor or inductor on-chip charge pumping.
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Hoang Loc B.
Jaffari Nasrin
Lau Wingfu Aaron
Ly Anh
Nguyen Hung O.
Behm Harry
DLA Piper (LLP) US
Silicon Storage Technology, Inc.
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