Portable electronic apparatus with a circuit for controlling dis

Details Portable electronic apparatus with a circuit for controlling dis Portable electronic apparatus with a circuit for controlling dis

1999-09-17

2000-09-05

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Means to identify cell or battery type

H02J 700

Patent

active

061148318

ABSTRACT:
A portable electronic apparatus suitable for being electrically powered by various types of batteries includes a circuit which identifies the type of battery that is connected to it, and a discharge control circuit which controls discharging of the battery, the discharge control circuit including a comparator circuit which compares the output voltage of the battery with a minimum threshold voltage, a current-determining circuit which determines a value representative of the output current of the battery, an adapter circuit which adapts the minimum threshold voltage as a function of the identified battery type and of the value representative of the output current; a disconnect/stop circuit which stops the electronic apparatus from being powered when the output voltage of the battery becomes lower than the minimum threshold voltage delivered by the adapter circuit.

REFERENCES:
patent: 5164652 (1992-11-01), Johnson et al.
patent: 5350993 (1994-09-01), Toya et al.
patent: 5432429 (1995-07-01), Armstrong, II et al.
patent: 5477124 (1995-12-01), Tamai
patent: 5668465 (1997-09-01), May
patent: 5705913 (1998-01-01), Takeuchi et al.
patent: 5739671 (1998-04-01), Hamada
patent: 5789903 (1998-08-01), Young et al.
patent: 5894212 (1999-04-01), Balogh
patent: 5907238 (1999-05-01), Owerko et al.
patent: 5929603 (1999-07-01), Nakao et al.
patent: 5959436 (1999-09-01), Takashina et al.
patent: 5990663 (1999-11-01), Mukainakano
patent: 5990664 (1999-11-01), Rahman
patent: 6014008 (2000-01-01), Hartzell et al.

Affiliated with

Also associated with

Rating

Portable electronic apparatus with a circuit for controlling dis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable electronic apparatus with a circuit for controlling dis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable electronic apparatus with a circuit for controlling dis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2215638