Method and system for providing a trickle charging current to a battery
First Claim
Patent Images
1. A system for recharging a battery comprising:
- a fast charging current switch for coupling a fast charging current to a battery in response to the battery voltage being at or above a threshold level; and
a bypass element for coupling a trickle charging current to the battery.
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Abstract
A system and method enables a fast charging current switch to be bypassed with a trickle charging current so a battery with a low internal resistance is not supplied a fast charging current. The fast charging current switch is enabled to supply a fast charging current to the battery in response to the battery voltage being at or above a threshold voltage. If the fast charging current switch is not enabled to provide the fast charging current then a bypass element provides the trickle charging current. Preferably, the bypass element is a resistor coupled across a transistor used to implement the fast charging current switch.
32 Citations
20 Claims
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1. A system for recharging a battery comprising:
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a fast charging current switch for coupling a fast charging current to a battery in response to the battery voltage being at or above a threshold level; and
a bypass element for coupling a trickle charging current to the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for recharging a battery comprising:
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coupling a trickle charging current to the battery; and
coupling a fast charging current to a battery in response to the battery voltage being at or above a threshold level. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification