CAPACITIVE SWITCH CONTROLLER

A controller controls a plurality of sensor electrodes. To a plurality of sense pins, the plurality of sensor electrodes are connected. A plurality of capacitance detection circuits respectively measure capacitance values of the corresponding sense pins. A calibration circuit calibrates the pluralit...

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Bibliographic Details
Main Authors IWAMOTO, Yukihiro, HIRAKAWA, Masaya
Format Patent
LanguageEnglish
Published 18.04.2019
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A controller controls a plurality of sensor electrodes. To a plurality of sense pins, the plurality of sensor electrodes are connected. A plurality of capacitance detection circuits respectively measure capacitance values of the corresponding sense pins. A calibration circuit calibrates the plurality of capacitance detection circuits. A relative relationship among the respective capacitance values of the plurality of sense pins is used for abnormality detection.
Bibliography:Application Number: US201816157432