SIMPLE BATTERY AND CHARGER SYSTEM
First Claim
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1. An apparatus comprising:
- a battery charger comprising a first pair of output terminals, and;
a first battery pack comprising a first battery and first pair of input terminals, which can be connected to the first pair of output terminals;
wherein the battery charger comprises a circuit for controlling a voltage Vout, which is provided at the first pair of output terminals by the battery charger;
wherein the first battery pack comprises a first circuit that generates a first control signal (Vref) when the first pair of output terminals is connected to the first pair of input terminals;
wherein the circuit is configured to control Vout based on the first control signal.
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Abstract
A simple battery and battery charger. In one embodiment, the battery charger includes an output terminal that provides a charging voltage Vout and charging current Iout. The battery is contained in a battery pack having an input terminal, which can be connected to the output terminal in order to receive Vout and Iout. The battery charger may include a first circuit for controlling the magnitude of Vout. The battery pack may include a second circuit that generates a control signal when the output terminal is connected to the input terminal. The first circuit is configured to control the magnitude of Vout based on the control signal.
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Citations
20 Claims
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1. An apparatus comprising:
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a battery charger comprising a first pair of output terminals, and; a first battery pack comprising a first battery and first pair of input terminals, which can be connected to the first pair of output terminals; wherein the battery charger comprises a circuit for controlling a voltage Vout, which is provided at the first pair of output terminals by the battery charger; wherein the first battery pack comprises a first circuit that generates a first control signal (Vref) when the first pair of output terminals is connected to the first pair of input terminals; wherein the circuit is configured to control Vout based on the first control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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a rechargeable battery; a circuit; a pair of input terminals, wherein one of the input terminals is configured to receive current from a battery charger, wherein a portion of the current can be used to charge the rechargeable battery; wherein the circuit is configured for generating a control signal for controlling the battery charger; wherein the circuit generates the control signal based on a voltage across the rechargeable battery or a cell thereof. - View Dependent Claims (12, 13, 14, 15)
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16. A method comprising:
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a circuit in a battery pack generating a control signal Vref; the circuit transmitting the control signal to a battery charger coupled to the battery pack; the battery charger generating an output voltage Vout for use in charging a battery of the battery pack, wherein the output voltage Vout varies with the control signal Vref. - View Dependent Claims (17, 18, 19, 20)
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Specification