Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2006-03-21
2006-03-21
Lee, Thomas (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
C320S137000, C307S046000
Reexamination Certificate
active
07017055
ABSTRACT:
A hub supplying power actively includes an active power supply device having a battery charger, a storage battery, a DC/DC converter, and a control circuit. The hub is connected to a USB of a computer to receive direct current (DC) of the USB. When power demand of the hub is lower than the DC power supply of the USB, the power is supplied by the USB and the storage battery is charged via the battery charger simultaneously. When power demand of the hub is higher than the DC power supply of the USB, the storage battery discharges electricity and supplies power after conversion by the DC/DC converter. When the hub is disconnected to the computer, a power adapter is connected externally to rectify mains electricity and to charge battery. The charged battery outputs the power to supply for the connected peripheral equipment after converting the electricity into direct current.
REFERENCES:
patent: 5990577 (1999-11-01), Kamioka et al.
patent: 6204574 (2001-03-01), Chi
patent: 6665801 (2003-12-01), Weiss
patent: 2002094545 (2002-03-01), None
patent: 2003241858 (2003-08-01), None
Cyber Power System Inc.
Lee Thomas
Rosenberg , Klein & Lee
Suryawanshi Suresh K
LandOfFree
Hub that can supply power actively does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hub that can supply power actively, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hub that can supply power actively will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3581074