Temperature compensated battery charger system
First Claim
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1. A temperature compensated battery charger system for charging a battery, comprising:
- a voltage source;
an output circuit coupled to said voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery; and
at least two diodes coupled in series in said output circuit wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery.
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Abstract
A battery charger system for providing a temperature compensated charging output voltage to a battery. The battery charger system includes a voltage source and an output circuit coupled to the voltage source and the battery for supplying the charging output voltage to the battery. The output circuit includes a diode compensation network that is responsive to variations in temperature near the battery to vary the charging output voltage supplied to the battery. Methods for providing a temperature compensated charging output voltage to a battery are also disclosed.
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Citations
23 Claims
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1. A temperature compensated battery charger system for charging a battery, comprising:
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a voltage source; an output circuit coupled to said voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery; and at least two diodes coupled in series in said output circuit wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14)
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9. A temperature compensated battery charger system for charging a battery, comprising:
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a voltage source; an output circuit coupled to said voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery; first and second resistive elements coupled in series in said output circuit; and at least two diodes coupled in series with said first and second resistive elements in said output circuit wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery. - View Dependent Claims (10, 11, 12, 13)
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15. A temperature compensated battery charger system for charging a battery, comprising:
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a regulated voltage source; and at least two diodes coupled to said regulated voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery, wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery. - View Dependent Claims (16, 17)
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18. A method of providing a temperature compensated charging output voltage to a battery, comprising:
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providing a regulated voltage source; providing at least two series connected diodes coupled to said regulated voltage source for supplying a charging output voltage to said battery; and coupling said diodes in parallel to said battery, wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery. - View Dependent Claims (19, 20)
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21. A temperature compensated battery charger system for charging a battery, comprising:
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a voltage source; an output circuit coupled to said voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery; at least one resistive element in said output circuit; and at least two diodes coupled in series with said resistive element in said output circuit, wherein said series connected resistive element and diodes are collectively adapted to be connected in parallel with said battery, and further wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery.
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22. A temperature compensated battery charger system for charging a battery, comprising:
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a regulated voltage source; an output circuit coupled to said regulated voltage source and adapted to be coupled to said battery for supplying a charging output voltage to said battery; at least two diodes coupled to in said output circuit; and a resistive element coupled in series with said diodes in said output circuit, wherein said resistive element and said diodes are collectively adapted to be connected in parallel with said battery, and further wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery.
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23. A method of providing a temperature compensated charging output voltage to a battery, comprising:
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providing a regulated voltage source; coupling at least two series connected diodes to said regulated voltage source; coupling at least one resistive element in series with said diodes; and collectively coupling said series connected resistive element and diodes in parallel with said battery for supplying a charging output voltage to said battery, wherein said diodes are responsive to variations in temperature proximate said battery to vary said charging output voltage supplied to said battery.
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Specification