Calibrating a system by setting difference between signals
First Claim
Patent Images
1. A system comprising:
- a circuit comprising;
a first input terminal;
a first output terminal; and
an amplifier coupled to said first input terminal via a first resistive component, and coupled to said first output terminal via a second resistive component;
a multiplexer coupled to said circuit and operable for providing a selected signal that is selected from a reference signal and a plurality of real-time input signals to said circuit, and wherein each real-time input signal of said plurality of real-time input signals indicates a voltage level at a terminal of a corresponding battery cell of said battery cells; and
a processor coupled to said circuit and operable for calibrating said system, said calibrating comprising setting a level difference between a first input signal at said first input terminal and a first output signal at said first output terminal to a first predetermined level.
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Abstract
In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an input signal at the input terminal and an output signal at the output terminal to a predetermined level.
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Citations
24 Claims
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1. A system comprising:
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a circuit comprising; a first input terminal; a first output terminal; and an amplifier coupled to said first input terminal via a first resistive component, and coupled to said first output terminal via a second resistive component; a multiplexer coupled to said circuit and operable for providing a selected signal that is selected from a reference signal and a plurality of real-time input signals to said circuit, and wherein each real-time input signal of said plurality of real-time input signals indicates a voltage level at a terminal of a corresponding battery cell of said battery cells; and a processor coupled to said circuit and operable for calibrating said system, said calibrating comprising setting a level difference between a first input signal at said first input terminal and a first output signal at said first output terminal to a first predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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setting a level difference between a first input signal at a first input terminal of a circuit and a first output signal at a first output terminal of said circuit to a first predetermined level, wherein said circuit comprises an amplifier coupled to said first input terminal via a first resistive component and coupled to said first output terminal via a second resistive component; selecting a selected signal from a reference signal and a plurality of real-time input signals, wherein each real-time input signal of said plurality of real-time input signals indicates a voltage level at a terminal of a corresponding battery cell of a plurality of battery cells; providing said selected signal to said circuit; and calibrating a system based on said setting of said level difference. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system comprising:
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a circuit comprising a first input terminal, a second input terminal, and a first output terminal, and operable for selectively receiving a first voltage level at a first detect terminal via said first input terminal and selectively receiving a second voltage level at a second detect terminal via said second input terminal, said circuit further comprising an amplifier coupled to said first input terminal via a first resistive component and coupled to said first output terminal via a second resistive component; a multiplexer coupled to said circuit and operable for providing a selected signal that is selected from a reference signal and said second voltage level to said circuit, wherein said second voltage level comprises a plurality of real-time input signals, and each real-time input signal indicates a voltage level at a terminal of a corresponding battery cell of a plurality of battery cells; and a processor coupled to said circuit and operable for calibrating said system by setting a voltage level difference between said first input terminal and said first output terminal to a first predetermined level, and operable for calculating a difference between said first and second voltage levels. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification