APPARATUS AND METHOD FOR ASSESSING THE INTEGRITY OF ANALOG-DIGITAL CONVERTER
First Claim
1. An apparatus for determining integrity of an electronic device in a vehicle, the apparatus comprising:
- a controller operably coupled to a high voltage measuring circuit and to an analog-to-digital converter (ADC), the high voltage measuring circuit for receiving a high voltage signal and including at least one stressed resistor for reducing the high voltage signal into a suitable voltage signal to provide to the ADC to perform a measurement thereof that is indicative of the high voltage signal in a normal operation mode, the controller being configured to;
apply a calibrated voltage to the at least one stressed resistor in a calibration mode; and
calculate a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine if the at least one stressed resistor is in a stressed state.
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Accused Products
Abstract
An apparatus for determining integrity of an electronic device in a vehicle is provided. The apparatus comprises a controller operably coupled to a high voltage measuring circuit and to an analog-to-digital converter (ADC). The high voltage measuring circuit receives a high voltage signal and includes at least one stressed resistor for reducing the high voltage signal into a suitable voltage signal. The ADC performs a measurement with the suitable voltage that is indicative of the high voltage signal in a normal operation mode. The controller is configured to apply a calibrated voltage to the at least one stressed resistor in a calibration mode. The controller is further configured to calculate a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine if the at least one stressed resistor is in a stressed state.
11 Citations
20 Claims
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1. An apparatus for determining integrity of an electronic device in a vehicle, the apparatus comprising:
a controller operably coupled to a high voltage measuring circuit and to an analog-to-digital converter (ADC), the high voltage measuring circuit for receiving a high voltage signal and including at least one stressed resistor for reducing the high voltage signal into a suitable voltage signal to provide to the ADC to perform a measurement thereof that is indicative of the high voltage signal in a normal operation mode, the controller being configured to; apply a calibrated voltage to the at least one stressed resistor in a calibration mode; and calculate a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine if the at least one stressed resistor is in a stressed state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for determining integrity of an electrical device in a vehicle, the apparatus comprising:
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a high voltage measuring circuit for receiving a high voltage signal and including at least one stressed resistor for reducing the high voltage signal into a suitable voltage signal; an analog-to-digital converter (ADC) for receiving the suitable voltage level to perform a measurement thereof that is indicative of the high voltage signal in a normal operation mode; a controller configured to; apply a calibrated voltage to the at least one stressed resistor in a calibration mode; and calculate a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine if the at least one stressed resistor is in a stressed state. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining integrity of an electrical device in a vehicle, the method comprising:
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receiving a high voltage signal; reducing the high voltage signal via at least one stressed resistor to provide a suitable voltage signal; digitally converting the suitable voltage level to perform a measurement that is indicative of the high voltage signal in a normal operation mode; applying a calibrated voltage to the at least one stressed resistor in a calibration mode; and calculating a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine whether the at least one stressed resistor is in stressed state. - View Dependent Claims (20)
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Specification