Power supply for central processing unit

Details Power supply for central processing unit Power supply for central processing unit

2007-04-10

2007-04-10

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Reexamination Certificate

active

10188362

ABSTRACT:
A power supply and method for a central processing unit (CPU). The power can include a first power supply circuit such as a DC/DC converter for supplying a voltage of a first level to the CPU when the CPU is in a high activity mode, and a second power supply circuit such as an LDO regulator circuit for supplying a voltage of a second level lower than the first level to the CPU when the CPU is in a low activity mode. The second power supply circuit is preferably efficient when the CPU is in a low load or low activity mode. In such a power supply, when the CPU is in the low activity mode, the LDO regulator circuit is operated to reduce or prevent the efficiency from being degraded, reduce a CPU power consumption and extend a CPU battery lifetime.

REFERENCES:
patent: 5627412 (1997-05-01), Beard
patent: 5812860 (1998-09-01), Horden et al.
patent: 5903182 (1999-05-01), Jordan
patent: 6085330 (2000-07-01), Hewitt et al.
patent: 6181895 (2001-01-01), Hirst
patent: 6425086 (2002-07-01), Clark et al.
patent: 6523128 (2003-02-01), Stapleton et al.
patent: 6675304 (2004-01-01), Pole et al.
patent: 6715090 (2004-03-01), Totsuka et al.
patent: 6738068 (2004-05-01), Cohen et al.
patent: 6744301 (2004-06-01), Tschanz et al.
patent: 6762570 (2004-07-01), Fosler
patent: 6763471 (2004-07-01), Aoyama
patent: 6772356 (2004-08-01), Qureshi et al.
patent: 6804591 (2004-10-01), Miyazawa
patent: 6848057 (2005-01-01), Hicok
patent: 2001/0007134 (2001-07-01), Odaohhara

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