Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2007-01-09
2007-01-09
Cribbs, Malcolm (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S300000, C713S340000
Reexamination Certificate
active
10620945
ABSTRACT:
Power supply response to variations in power demand by a microprocessor is improved with a compensation loops that estimate changes in load current with improved speed. The load current estimate is performed in part with a capacitance feed forward compensation loop that senses voltage at output capacitors to replicate the current present in the capacitors and communicates the capacitor current adjusted by an optimized gain to the power supply for adjustment of power output. Capacitor current is replicated with a frequency domain filter having a pole that cancels out the zero created by power supply equivalent series resistance and capacitor capacitance. The capacitance compensation loop improves power supply response time to microprocessor power demand skews so that the size or number of output capacitors may be reduced while still maintaining power supply at the microprocessor to within desired voltage and current tolerances.
REFERENCES:
patent: 5349515 (1994-09-01), Megeid
patent: 5656923 (1997-08-01), Schultz et al.
patent: 5751121 (1998-05-01), Toyama et al.
patent: 5998886 (1999-12-01), Hoshino et al.
patent: 6366483 (2002-04-01), Ma et al.
patent: 6374085 (2002-04-01), Saints et al.
patent: 6384491 (2002-05-01), O'Meara
patent: 6400584 (2002-06-01), Sabate et al.
patent: 6522112 (2003-02-01), Schmoock et al.
patent: 6567261 (2003-05-01), Kanouda et al.
patent: 6593725 (2003-07-01), Gallagher et al.
patent: 6597299 (2003-07-01), Bugeja
patent: 6687049 (2004-02-01), Sulhoff et al.
patent: 6993305 (2006-01-01), Kasperkovitz
patent: 2002/0086709 (2002-07-01), Saito et al.
patent: 2003/0035206 (2003-02-01), Pavel et al.
patent: 2003/0098679 (2003-05-01), Odaohhara
patent: 2004/0114215 (2004-06-01), Tian et al.
patent: 2004/0263225 (2004-12-01), Perrott et al.
patent: 2006/0097797 (2006-05-01), Gomez
Herrmann John A.
Jenkins Daniel E.
McDonald Brent A.
Cribbs Malcolm
Dell Products L.P.
Hamilton & Terrile LLP
Holland Robert W.
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