Electricity: battery or capacitor charging or discharging – Battery or cell discharging – Regulated discharging
Reexamination Certificate
2005-02-09
2009-02-03
Ullah, Akm E (Department: 2838)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
Regulated discharging
C320S127000, C320S128000, C320S130000, C320S131000, C320S132000, C320S133000, C320S134000, C320S135000
Reexamination Certificate
active
07486051
ABSTRACT:
A charging and discharging control circuit controls charging and discharging of a secondary battery by monitoring at least one of a voltage across, and an electric current through, the secondary battery and controlling a switching circuit in a charging and discharging pathway of the secondary battery. A charging and discharging switch control circuit controls the switching circuit. A driver circuit outputs a signal from the charging and discharging switch control circuit to the switching circuit through an output terminal. A logic circuit compares a voltage of the signal from the driver circuit with a voltage applied to the output terminal from an external portion. The charging and discharging control circuit is switched between a normal operating state and a testing state in accordance with a result of the comparison by the logic circuit.
REFERENCES:
patent: 5896025 (1999-04-01), Yamaguchi et al.
patent: 6501248 (2002-12-01), Fujiwara
patent: 2001/0026147 (2001-10-01), Nakashimo
Adams & Wilks
Ruiz Johali A Torres
Seiko Instruments Inc.
Ullah Akm E
LandOfFree
Charging and discharging control circuit, and charging type... 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 and discharging control circuit, and charging type..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charging and discharging control circuit, and charging type... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4126121