Battery charger with improved overcharge protection mechanism and method of operation thereof
First Claim
Patent Images
1. A battery charger, comprising:
- a voltage sensor for sensing a voltage of a battery that said battery charger is charging; and
a controller, coupled to said voltage sensor, that adjusts a charge mode of said battery charger when samples of said voltage taken over a predetermined period of time are within a predetermined range thereby to prevent overcharging of said battery.
12 Assignments
0 Petitions
Accused Products
Abstract
A battery charger with improved overcharge protection mechanism and method of charging a battery with such charger. In one embodiment, the charger includes: (1) a voltage sensor for sensing a voltage of a battery that the battery charger is charging and (2) a controller, coupled to the voltage sensor, that adjusts a charge mode of the battery charger when samples of the voltage taken over a predetermined period of time are within a predetermined range thereby to prevent overcharging of the battery.
-
Citations
20 Claims
-
1. A battery charger, comprising:
-
a voltage sensor for sensing a voltage of a battery that said battery charger is charging; and
a controller, coupled to said voltage sensor, that adjusts a charge mode of said battery charger when samples of said voltage taken over a predetermined period of time are within a predetermined range thereby to prevent overcharging of said battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of charging a battery, comprising:
-
charging said battery;
sensing a voltage of said battery; and
adjusting said charging when samples of said voltage taken over a predetermined period of time are within a predetermined range thereby to prevent overcharging of said battery. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A cordless telephone, comprising:
-
a handset having;
handset wireless communication circuitry, a battery that powers said handset wireless communication circuitry, and a base interface; and
a base having;
base wireless communication circuitry, a handset interface removably couplable to said base interface to allow said battery to receive charge current from said base, and a battery charger having a voltage sensor for sensing a voltage of said battery and a controller, coupled to said voltage sensor, that terminates a quick charge mode of said battery charger when samples of said voltage taken over a predetermined period of time remain within a predetermined range thereby to prevent overcharging of said battery. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification