Trailer tow preserving battery charge circuit
First Claim
1. An integrated circuit device for preserving a battery'"'"'s charge and protecting electrical devices, the integrated circuit comprising:
- a memory;
a processor electrically coupled to the memory;
a power control circuit electrically coupled to the electrical device, the power control circuit operable to control electrical power delivered to the electrical device responsive to a power control signal from the processor; and
a voltage sense circuit electrically coupled to the power control circuit, the voltage sense circuit operable to measure voltage at an output port of the power control circuit and to provide to the processor a voltage sense signal representative of the measured voltage;
wherein the processor is operable to provide the power control signal to the power control circuit responsive to the voltage sense signal, compare the measured voltage to a reference voltage, and to report an error state responsive to the comparison.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and integrated circuit for preserving a battery'"'"'s charge and protecting electrical devices is disclosed. A maximum and a minimum battery voltage value at the output port are stored in a memory. A steady state battery voltage at the output port is measured and stored in the memory. A processor compares the measured steady battery voltage value to the maximum and the minimum battery voltage values. If the measured steady state battery voltage value is greater than the maximum battery voltage value, an over voltage state is reported by the processor. If the measured steady state battery voltage value is less than the minimum battery voltage value, a low battery voltage state is reported by the processor.
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Citations
59 Claims
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1. An integrated circuit device for preserving a battery'"'"'s charge and protecting electrical devices, the integrated circuit comprising:
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a memory; a processor electrically coupled to the memory; a power control circuit electrically coupled to the electrical device, the power control circuit operable to control electrical power delivered to the electrical device responsive to a power control signal from the processor; and a voltage sense circuit electrically coupled to the power control circuit, the voltage sense circuit operable to measure voltage at an output port of the power control circuit and to provide to the processor a voltage sense signal representative of the measured voltage; wherein the processor is operable to provide the power control signal to the power control circuit responsive to the voltage sense signal, compare the measured voltage to a reference voltage, and to report an error state responsive to the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An integrated circuit device for preserving a battery'"'"'s charge and protecting electrical devices, the integrated circuit comprising:
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a memory; a processor electrically coupled to the memory; a power control circuit electrically coupled to the electrical device, the power control circuit operable to control electrical power delivered to the electrical device responsive to a power control signal from the processor; and a current sense circuit electrically coupled to measure current flowing to an output port of the power control circuit and operable to provide to the processor a current sense signal representative of the measured current; wherein the processor is operable to provide the power control signal to the power control circuit responsive to the current sense signal, compare the measured current to a reference current and to report an error state responsive to the comparison. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A trailer tow connector configured to preserve a battery'"'"'s charge and regulate power in one or more electrical devices installed in a trailer attached to a vehicle, the trailer tow connector comprising:
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a memory; a processor electrically coupled to the memory; a power control circuit electrically coupled to the electrical device, the power control circuit operable to control electrical power delivered to the electrical device responsive to a power control signal from the processor; and sensing circuitry electrically coupled to measure at least one of voltage, current, or power at an output port of the power control circuit and operable to provide to the processor a sensing signal representative of the measured voltage, current, or power; wherein the processor is operable to provide the power control signal to the power control circuit responsive to the sensing signal. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. An integrated circuit device for preserving a battery'"'"'s charge and protecting an electrical device, the integrated circuit comprising:
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a power control circuit electrically coupled to the electrical device, the power control circuit operable, in response to a power control signal received from a processor, to control electrical power delivered to the electrical device; and sensing circuitry operable to measure at least one of voltage, current, or power at an output port of the power control circuit and to provide, to the processor, a sensing signal representative of the measured voltage, current, or power; wherein the power control signal is received from the processor in response to the sensing signal. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification