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Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kamyar Khosravi0
Andrea Foletto0
Masahira Kurihara0
Lu Wang0
Date of Patent
October 1, 2024
0Patent Application Number
180606700
Date Filed
December 1, 2022
0Patent Citations
...
Patent Primary Examiner
Patent abstract
Methods and apparatus for motor control having low noise variable-high frequency signal injection for an electric motor. Different injection signals have different signal characteristics. One of the first and second injection signals is selected on a cycle-by-cycle basis as part of a direct voltage signal input to control an electric motor. The first and second signal characteristics are configured to reduce acoustic noise generated by an electric motor.
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