Invention Grant
- Patent Title: Current sensing based commutation control
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Application No.: US16025006Application Date: 2018-07-02
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Publication No.: US10536103B2Publication Date: 2020-01-14
- Inventor: Dirk Leman , Xing Zuo
- Applicant: Melexis Bulgaria Ltd.
- Applicant Address: BG Sofia
- Assignee: MELEXIS BULGARIA LTD.
- Current Assignee: MELEXIS BULGARIA LTD.
- Current Assignee Address: BG Sofia
- Agency: Workman Nydegger
- Priority: EP17179611 20170704
- Main IPC: H02P23/14
- IPC: H02P23/14 ; H02P6/20 ; H02P6/08 ; H02P25/03

Abstract:
A method for controlling a single coil brushless DC motor, the method comprising at least a first EHP sequence which comprises: driving the motor using a driving signal during a torque generating period, to accelerate the motor, such that during a subsequent generator mode period a phase current goes in generator mode; driving the motor during the generator mode period using a generator mode signal, which allows the phase current to be in generator mode; monitoring the phase current during the generator mode period thereby obtaining phase current information; and determining parameters of a next EHP sequence based on the obtained phase current information.
Public/Granted literature
- US20190013757A1 CURRENT SENSING BASED COMMUTATION CONTROL Public/Granted day:2019-01-10
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