Power harvesting in a foot force detection system
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United States of America
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Feb 18, 2025
Grant Date -
May 19, 2022
app pub date -
Jan 31, 2022
filing date -
Jan 31, 2022
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Abstract
A foot force detection system includes variable capacitors, drive sense circuits, a processing module, and a power unit. A drive sense circuit supplies a reference signal to the variable capacitor. It then generates a sensed signal regarding a characteristic of the variable capacitor based on the reference signal. It then converts the sensed signal into a digital signal. The processing module generates a digital impedance value for the variable capacitor based on the digital signal and writes the digital impedance value in memory. The power unit include a battery and a power harvesting circuit, where the battery and/or the power harvesting circuit provide power for the foot force detection system.
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