DRIVE DEVICE AND ULTRASONIC SENSOR
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United States of America Patent
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Issued Date -
Mar 21, 2024
app pub date -
Nov 29, 2023
filing date -
Jun 3, 2021
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Abstract
A drive device includes a power supply circuit that includes a switch element, and a drive circuit that is configured to use a voltage supplied from the power supply circuit as a power supply voltage and that is configured to perform pulse driving of a drive-target element. The power supply circuit is configured to operate such that a switching frequency of the switch element differs from a frequency of the pulse driving.
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