Power supply apparatus for portable computer and DC input select

Details Power supply apparatus for portable computer and DC input select Power supply apparatus for portable computer and DC input select

1997-07-10

1999-03-23

Paladini, Albert W.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 23, 395280, 395281, 395882, H05K 1000

Patent

active

058864245

ABSTRACT:
Disclosed is a power supply apparatus which permits a docking station to be operated with a battery power from a battery pack of a portable computer even if supply of AC power to the docking station is accidentally cut off. The apparatus for a portable computer system for use with a docking station having a logic circuit for expanding functions of the portable computer comprises a DC input selection circuit placed on the portable computer side, for switching between the first and second DC voltages to provide a switched DC voltage to the portable computer as well as the docking station, so that the docking station is operated with the second DC power source even though supply of AC power to the docking station is cut off.

REFERENCES:
patent: 5414751 (1995-05-01), Yamada
patent: 5438395 (1995-08-01), Morimura et al.
patent: 5463742 (1995-10-01), Kobayashi
patent: 5555491 (1996-09-01), Tao
patent: 5579197 (1996-11-01), Mengelt et al.
patent: 5579489 (1996-11-01), Dornier et al.
patent: 5603095 (1997-02-01), Uola
patent: 5608612 (1997-03-01), Hokao
patent: 5798951 (1998-08-01), Cho et al.
patent: 5805412 (1998-09-01), Yanagisawa et al.

Affiliated with

Also associated with

Rating

Power supply apparatus for portable computer and DC input select does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply apparatus for portable computer and DC input select, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply apparatus for portable computer and DC input select will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2129146