Power management unit for a flash memory with single...

Details Power management unit for a flash memory with single... Power management unit for a flash memory with single...

2008-07-22

2008-07-22

Dinh, Son (Department: 2824)

Static information storage and retrieval

Powering

C365S189050, C365S210130, C365S189090

Reexamination Certificate

active

07403441

ABSTRACT:
A power management unit for a non-volatile memory device is proposed. The power management unit includes means for providing a reference voltage, resistive means for deriving a reference current from the reference voltage, means for generating a plurality of operative voltages from a power supply voltage, and means for regulating the operative voltages; in the power management unit of the invention, for each operative voltage the means for regulating includes means for deriving a scaled reference current from the reference current according to a scaling factor, further resistive means for deriving a rating voltage from the scaled reference current, means for deriving a measuring voltage from the operative voltage and the rating voltage, and means for controlling the operative voltage according to a comparison between the measuring voltage and the reference voltage.

REFERENCES:
patent: 5568424 (1996-10-01), Cernea et al.
patent: 5767698 (1998-06-01), Emeigh et al.
patent: 6495997 (2002-12-01), Hall et al.
patent: 2002/0000871 (2002-01-01), Davies
patent: 2003/0179609 (2003-09-01), Natori
patent: 0905710 (1999-03-01), None
European Search Report, EP 04100682, Aug. 13, 2004.

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