INTEGRATED POSITION SENSOR WITH DUAL SYNCHRONIZED OUTPUTS

    公开(公告)号:US20240262492A1

    公开(公告)日:2024-08-08

    申请号:US18453088

    申请日:2023-08-21

    CPC classification number: B64C13/503

    Abstract: A system configuration significantly reduces the number of interconnections needed between an electromechanical actuator (EMA) and an EMA controller (EMAC) while maintaining redundancy and other safety aspects needed by the target application. This allows simplification of communication interfaces between multiple sensors in the EMA and EMAC and unification of the interface to multiple sensors inside the EMAC, leading to cost and weight reduction that can be significant for many aerospace products and applications, including unmanned vehicle (e.g., UAM/UAV) applications.

    Fail-safe motor control architecture for open-end winding motors

    公开(公告)号:US11183960B1

    公开(公告)日:2021-11-23

    申请号:US17004865

    申请日:2020-08-27

    Abstract: A motor control system includes a multi-phase motor, a multi-phase inverter circuit, a plurality of controllable switches, a plurality of sensors, and a monitor circuit. Each controllable switch is coupled in series between a second terminal of the motor and a common winding node and is responsive to switch commands to operate in either a first switch mode or a second switch mode. The monitor circuit is responsive to sensor signals to determine when one or more of the sensed motor state variables attains a predetermined threshold magnitude and when one or more of the sensed motor state variables attains the predetermined threshold magnitude, to supply a switch command to one or more of the controllable switches that causes the one or more controllable switches to operate in the second switch mode.

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