Charge control circuit for a battery
First Claim
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1. A charging circuit for a battery comprising:
- a voltage sensor coupled to the battery for generating a cell voltage signal;
a current sensor coupled to the battery for generating a cell charge current signal; and
a controller coupled to said voltage sensor and said current sensor, said controller determining a compensated battery cell voltage in response to the cell voltage signal and the charge current signal, said controller charging of the battery in response to the compensated voltage signal.
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Abstract
A charging circuit (28) particularly suited for use in a satellite (20) has a battery cell (32). A voltage sensor (36) is coupled to the battery for generating a cell voltage signal. A current sensor (34) is coupled to the battery cell (32) and generates a cell charge current signal. A controller (38) is coupled to the voltage sensor (36) and the current sensor (34). The controller (38) determines a compensated voltage in response to the cell voltage signal and the charge current signal and controls the charging of the battery cell (32) in response to the compensated voltage.
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Citations
20 Claims
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1. A charging circuit for a battery comprising:
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a voltage sensor coupled to the battery for generating a cell voltage signal;
a current sensor coupled to the battery for generating a cell charge current signal; and
a controller coupled to said voltage sensor and said current sensor, said controller determining a compensated battery cell voltage in response to the cell voltage signal and the charge current signal, said controller charging of the battery in response to the compensated voltage signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A satellite comprising:
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a battery;
a charging circuit coupled to the battery;
a voltage sensor coupled to the battery for generating a cell voltage signal;
a current sensor coupled to the battery for generating a cell charge current signal; and
a controller coupled to said voltage sensor and said current sensor, said controller determining a compensated battery cell voltage in response to the cell voltage signal and the charge current signal, said controller charging of the battery in response to the compensated voltage signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for charging a battery comprises:
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measuring a cell voltage;
measuring a cell charge current;
determining a compensated voltage in response to the cell voltage and the cell charge current;
comparing the compensated voltage to a threshold;
discontinuing the cell charge current when the compensated voltage exceeds the threshold. - View Dependent Claims (17, 18, 19, 20)
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Specification