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公开(公告)号：US20250067269A1
公开(公告)日：2025-02-27
申请号：US18395638
申请日：2023-12-25
Applicant: RICHTEK TECHNOLOGY CORP.
Inventor： Ta-Yung Yang , I-Chi Lin , Chang-Yi Lin , Shih-Jen Yang
Abstract: A method for predicting failure of a cooling fan includes driving a motor of the cooling fan based on a control speed, generating a first speed according to an average speed of the motor, generating a first current according to an average current of the motor, retrieving a system coefficient from a memory, generating a current threshold according to the first speed and the system coefficient, and triggering an alarm signal if the first current exceeds the current threshold by a threshold amount.
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