CONTROL DEVICE, DRIVE DEVICE, AND ELECTRIC POWER STEERING DEVICE
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United States of America Patent
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Issued Date -
Apr 25, 2024
app pub date -
Apr 27, 2021
filing date -
Apr 27, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A control device that includes a circuit board, a plurality of heating elements that generate heat that accompanies driving the motor, and a rotation angle sensor that detects a rotation angle of the motor. The circuit board has a power supply input portion to which a driving current of the motor is supplied, a heating element mounting region where the plurality of the heating elements are mounted, and a controller mounting region where the rotation angle sensor is mounted. The power supply input portion, the heating element mounting region, and the controller mounting region are disposed in such an order. The circuit board, as seen from an axial direction of the rotating shaft, protrudes to an outside of a projection region that projects an outer surface of a cylindrical portion of a motor case that surrounds the motor. The power supply input portion is located on a portion out of portions of the circuit board that are on the outside of the projection region.
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