Charging apparatus and charging method

Details Charging apparatus and charging method Charging apparatus and charging method

2005-09-27

2005-09-27

Tibbits, Pia (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With peak detection of current or voltage

C320S138000, C320S111000

Reexamination Certificate

active

06949913

ABSTRACT:
In the case of charging by a charging apparatus having a plurality of input terminals to which external power sources for charging a secondary battery are inputted, it is prevented that a current of the inputted power source is outputted to the outside from the other input terminals for charging which are not used. If there are inputs from a plurality of input terminals, the input power sources are controlled so that the battery is optimally charged. pnp-type transistors Q1and Q2are arranged between two input terminals of a terminal11for an external power adaptor and a terminal12for a holder and a secondary battery E1, respectively. When a control IC13detects an input power voltage of one of the transistors, the transistor on the detected side is turned on. If the control IC13detects both input power voltages, a priority is allocated under predetermined conditions and the secondary battery E1is charged by the power source of the higher priority.

REFERENCES:
patent: 5384837 (1995-01-01), Fox
patent: 5969506 (1999-10-01), Neal
patent: 6124700 (2000-09-01), Nagai et al.
patent: 6433443 (2002-08-01), Nishida et al.

Affiliated with

Also associated with

Rating

Charging apparatus and charging method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Charging apparatus and charging method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charging apparatus and charging method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3382725