Multiple constant current battery charging apparatus
First Claim
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1. Multiple constant current charging apparatus for charging a rechargeable battery, comprising, in combination:
- voltage means for providing a direct current voltage source;
first constant current means connected to the voltage means for providing a first substantially constant charging current, including a first voltage regulator for providing a substantially constant voltage from the voltage means and a first resistor in series with the first voltage regulator for providing the first substantially constant charging current;
second constant current means for providing a second substantially constant charging current;
conductor means for connecting the first constant current means and the second constant current means to a battery for charging; and
switch means comprising a single switch for selectively connecting and disconnecting as desired the voltage means to the second constant current means for providing either the first substantially constant current for charging the battery or the first and second substantially constant currents for charging the battery.
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Abstract
An array of low wattage low voltage current regulators is used to provide a multiple of regulated constant currents for charging a variable number of rechargeable batteries from a given power source voltage at any of a plurality of settings by changing the current capacity. Visual indications of the current settings are also provided.
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Citations
6 Claims
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1. Multiple constant current charging apparatus for charging a rechargeable battery, comprising, in combination:
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voltage means for providing a direct current voltage source; first constant current means connected to the voltage means for providing a first substantially constant charging current, including a first voltage regulator for providing a substantially constant voltage from the voltage means and a first resistor in series with the first voltage regulator for providing the first substantially constant charging current; second constant current means for providing a second substantially constant charging current; conductor means for connecting the first constant current means and the second constant current means to a battery for charging; and switch means comprising a single switch for selectively connecting and disconnecting as desired the voltage means to the second constant current means for providing either the first substantially constant current for charging the battery or the first and second substantially constant currents for charging the battery. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification