Battery charger with protection circuitry
First Claim
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1. A charger for charging a battery pack, the charger comprising:
- a battery power source providing power to the battery pack, the battery power source having first and second power settings at which power is provided to the battery pack at a first and second power levels corresponding to the first and second power settings;
a controller connected to and controlling the battery power source; and
a power supply connectable to an outside power source, the power supply receiving a current and voltage from the outside power source for providing power to at least one of the controller and the battery power source;
wherein the controller comprises a foldback circuit for switching between the first and second power settings depending upon at least one of the current and voltage received from the outside power source.
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Abstract
The charger includes a controller, a battery power source having at least two power settings connected to the controller, a power supply connectable to an outside power source, the power supply receiving a current and voltage from the outside power source for providing power to at least one of the controller and the battery power source, and a foldback circuit for switching between two power settings depending upon at least one of the current and voltage received from the outside power source.
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Citations
7 Claims
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1. A charger for charging a battery pack, the charger comprising:
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a battery power source providing power to the battery pack, the battery power source having first and second power settings at which power is provided to the battery pack at a first and second power levels corresponding to the first and second power settings;
a controller connected to and controlling the battery power source; and
a power supply connectable to an outside power source, the power supply receiving a current and voltage from the outside power source for providing power to at least one of the controller and the battery power source;
wherein the controller comprises a foldback circuit for switching between the first and second power settings depending upon at least one of the current and voltage received from the outside power source. - View Dependent Claims (2, 3, 4, 5, 6)
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7-16. -16. (canceled)
Specification