Smart battery charger system
First Claim
1. A smart battery charger for charging a smart battery, comprising:
- a nonvolatile memory that stores a charging current value and a charging voltage value;
a logic unit coupled to the nonvolatile memory, the logic unit programming the charging current value into the nonvolatile memory in response to a set current value command and programming the charging voltage value into the memory in response to a set voltage value command; and
a charging unit coupled to the nonvolatile memory, the charging unit generates a charging current and a charging voltage according to the charging current value and the charging voltage value, respectively.
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Abstract
A smart battery charger system including a smart battery charger that responds to charging instructions of a smart battery. The smart battery includes a memory that stores battery-specific charging characteristics. The smart battery determines a desired charging voltage and desired charging current based on measured environmental conditions, such as battery temperature, and the charging characteristics. A bus allows the smart battery to communicate the desired charging voltage and charging current to the smart battery charger. The smart battery charger generates the actual charging voltage and charging current in response to the desired charging voltage and charging current. In this manner the smart battery can control its own charging. Charging can be optimized according to a particular smart battery'"'"'s charging characteristics and requirements.
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Citations
19 Claims
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1. A smart battery charger for charging a smart battery, comprising:
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a nonvolatile memory that stores a charging current value and a charging voltage value; a logic unit coupled to the nonvolatile memory, the logic unit programming the charging current value into the nonvolatile memory in response to a set current value command and programming the charging voltage value into the memory in response to a set voltage value command; and a charging unit coupled to the nonvolatile memory, the charging unit generates a charging current and a charging voltage according to the charging current value and the charging voltage value, respectively. - View Dependent Claims (2, 3, 12, 13, 14)
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4. A smart battery charger system comprising:
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(A) a smart battery including; (i) a first nonvolatile memory fiat stores at least one charging characteristic of the smart battery; and (ii) a first logic unit that determines a desired charging current and a desired charging voltage according to at least one environmental condition of the battery and the at least one charging characteristic and writes the desired charging current and the desired charging voltage into the first nonvolatile memory; and (B) a smart battery charger coupled to the smart battery, the smart battery charger generates an actual charging current and an actual charging voltage in response to the desired charging current and the desired charging voltage, respectively. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19)
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Specification