Method and apparatus for charging a battery
First Claim
1. An apparatus for charging a lead acid storage battery, comprising:
- a first electrical connector adapted to connect to a positive terminal of the battery;
a second electrical connector adapted to connect to a negative terminal of the battery;
an electrical charging source providing a charge signal to the first and second connectors, the charge signal sufficiently large to charge the battery, wherein the charge signal includes an AC signal component;
voltage measurement circuitry coupled to the first and second electrical connectors responsively providing sensed voltage output related to the AC signal component of the charge signal;
current measurement circuitry coupled to the first electrical connector responsively providing a sensed current output related to the AC signal component of the charge signal; and
state of charge measurement circuitry responsively providing a state of charge output as a function of a parameter of the lead acid storage determined as a ratio of the sensed voltage output and the sensed current output, the state of charge output related to the amount the battery is charged.
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Accused Products
Abstract
An apparatus for charging a battery includes a first electrical connection adapted to connect to a positive terminal of the battery and a second electrical connector adapted to connect to a negative terminal of the battery. An electrical charging source couples to the first and second electrical connectors to charge the battery. Voltage measurement circuitry couples to the first and second electrical connectors and responsively provides a voltage output related to voltage across the battery. Current measurement circuitry also couples to the first and second electrical connectors and responsively provides a current output related to electrical current through the battery. State of charge measurement circuitry responsively provides a state of charge output as a function of the voltage output and the current output.
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Citations
101 Claims
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1. An apparatus for charging a lead acid storage battery, comprising:
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a first electrical connector adapted to connect to a positive terminal of the battery; a second electrical connector adapted to connect to a negative terminal of the battery; an electrical charging source providing a charge signal to the first and second connectors, the charge signal sufficiently large to charge the battery, wherein the charge signal includes an AC signal component; voltage measurement circuitry coupled to the first and second electrical connectors responsively providing sensed voltage output related to the AC signal component of the charge signal; current measurement circuitry coupled to the first electrical connector responsively providing a sensed current output related to the AC signal component of the charge signal; and state of charge measurement circuitry responsively providing a state of charge output as a function of a parameter of the lead acid storage determined as a ratio of the sensed voltage output and the sensed current output, the state of charge output related to the amount the battery is charged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. An apparatus for charging a lead acid storage battery, comprising:
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a first electrical connector adapted to connect to a positive terminal of the battery; a second electrical connector adapted to connect to a negative terminal of the battery; an electrical charging source adapted to provide a charge signal to the first and second connectors, the charge signal sufficiently large to charge the battery, wherein the charge signal includes an AC signal component; a memory adapted to contain stored information related to the battery; an input adapted to receive input information related to the battery; and a microprocessor coupled to the electrical charging source adapted to responsively control the charge signal as a function of the input information, the AC signal component of the charge signal and the stored information. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83)
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84. A method performed by an apparatus for charging a lead acid storage battery, comprising:
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generating a charge signal having sufficient energy to charge the battery; applying the charge signal to the storage battery to charge the battery, wherein the charge signal includes an AC signal component; sensing a voltage related to the AC signal component of the charge signal; sensing a current related to the AC signal component of the charge signal; and determining state of charge of the battery as a function of a ratio of the sensed voltage and sensed current. - View Dependent Claims (85, 86, 87, 88, 89, 90, 91, 92, 93)
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94. A method performed by an apparatus for charging a lead acid storage battery, comprising:
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generating a charge signal having sufficient energy to charge the storage battery, wherein the charge signal includes an AC signal component; applying a charge signal to the storage battery to charge the battery; retrieving stored information related to the battery stored in a memory; receiving input information related to the battery through an input; and responsively controlling the charge signal as a function of the input information, the AC signal component of the charge signal and the stored information related to the battery. - View Dependent Claims (95, 96, 97, 98, 99, 100, 101)
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Specification