Battery apparatus
First Claim
Patent Images
1. A battery apparatus comprising:
- (1) a switching device connected between a battery charger and a rechargeable battery;
(2) a pulse control circuit to control on and off the switching device, the pulse control circuit turn off the switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage; and
(3) an over-ride circuit to detect a cut-off of charging voltage application to the rechargeable battery and to force the switching device on.
2 Assignments
0 Petitions
Accused Products
Abstract
The battery apparatus has a circuit to turn off a switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and to turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage. The switching device is switched on and off to pulse charge the rechargeable battery. When cut-off of charging voltage to the rechargeable battery is detected, an over-ride circuit forces the switching device on, or a forced discharge circuit discharges the rechargeable battery until battery voltage drops below the specified voltage.
-
Citations
28 Claims
-
1. A battery apparatus comprising:
-
(1) a switching device connected between a battery charger and a rechargeable battery; (2) a pulse control circuit to control on and off the switching device, the pulse control circuit turn off the switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage; and (3) an over-ride circuit to detect a cut-off of charging voltage application to the rechargeable battery and to force the switching device on. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A battery apparatus comprising:
-
(a) a battery charger to charge a rechargeable battery; and (b) a battery pack which attaches to the battery charger in a detachable manner including; (1) a switching device connected between the battery charger and the rechargeable battery; (2) a pulse control circuit to control on and off the switching device, the pulse control circuit turn off the switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage; and (3) an over-ride circuit to detect a cut-off of charging voltage application to the rechargeable battery and to force the switching device on. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A battery apparatus comprising:
-
(1) a switching device; (2) a pulse control circuit to control on and off the switching device, the pulse control circuit turn off the switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage; and (3) a forced discharge circuit to forcibly discharge the rechargeable battery until battery voltage drops below the specified voltage, when it detects a cut-off of charging voltage application to the rechargeable battery. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A battery apparatus comprising:
-
(a) a battery charger to charge a rechargeable battery; and (b) a battery pack which attaches to the battery charger in a detachable manner including; (1) a switching device connected between the battery charger and the rechargeable battery; (2) a pulse control circuit to control on and off the switching device, the pulse control circuit turn off the switching device and suspend charging when rechargeable battery voltage exceeds a specified voltage, and turn on the switching device and resume charging when rechargeable battery voltage drops below the specified voltage; and (3) a forced discharge circuit to forcibly discharge the rechargeable battery until battery voltage drops below the specified voltage, when it detects cut-off of charging voltage application to the rechargeable battery. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
Specification