Power supply unit and portable apparatus utilizing the same

Details Power supply unit and portable apparatus utilizing the same Power supply unit and portable apparatus utilizing the same

2005-01-04

2008-12-16

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S266000, C323S285000

Reexamination Certificate

active

07466111

ABSTRACT:
An input source voltage is supplied from a battery for example to a switching power supply circuit such as a switching DC-DC converter via a series regulator for stepping down the input source voltage by a constant voltage. The series regulator serves as a buffer having a variable resistance to reduce the switching noise generated by the switching power supply circuit, thereby reducing the switching noise in the input source voltage and in turn reducing adverse influence of the noise on other circuit blocks that operate at the input source voltage.

REFERENCES:
patent: 5267136 (1993-11-01), Suga et al.
patent: 5689460 (1997-11-01), Ooishi
patent: 6091232 (2000-07-01), Criscione et al.
patent: 6348781 (2002-02-01), Midya et al.
patent: 06-067744 (1994-03-01), None
patent: 08-331036 (1996-12-01), None
patent: 2002-171748 (2002-06-01), None
patent: 2003-180073 (2003-06-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4034425