Power supply for portable telephone

Details Power supply for portable telephone Power supply for portable telephone

1994-10-27

1996-06-11

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323269, 323270, 174 35R, G05F 140

Patent

active

055258956

ABSTRACT:
A power supply for a portable telephone, includes a battery pack comprised of at least one battery cell providing an unregulated output voltage; a boost/buck switcher connected with the battery pack for boosting/bucking the output voltage to a different level; a first regulator connected with the boost/buck switcher for regulating the boosted/bucked output voltage to produce a first regulated voltage; a second regulator connected with the boost/buck switcher for regulating the boosted/bucked output voltage to produce a second regulated voltage having a voltage value different from the first regulated voltage; an EMI shielded case surrounding the battery pack, the boost/buck switcher, the first regulator and the second regulator; a first output terminal connected to the battery pack and supplied with the output voltage; a second output terminal connected with the first regulator and supplied with the first regulated voltage from the first regulator; and a second output terminal connected with the second regulator and supplied with the second regulated voltage from the second regulator.

REFERENCES:
patent: 4881023 (1989-11-01), Perusse et al.
patent: 5216351 (1993-06-01), Shimoda
patent: 5216353 (1993-06-01), Mori
patent: 5414340 (1995-05-01), Gannon

Affiliated with

Also associated with

Rating

Power supply for portable telephone 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 for portable telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply for portable telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-354265