- 专利标题: Brushless D.C. motor with improved rotor magnet position sensing
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申请号: US14757164申请日: 2015-11-27
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公开(公告)号: US09667122B1公开(公告)日: 2017-05-30
- 发明人: Su Shiong Huang , Shengbo Zhu
- 申请人: Su Shiong Huang , Shengbo Zhu
- 申请人地址: US CA San Jose
- 专利权人: SILICON VALLEY MICROM CORPORATION
- 当前专利权人: SILICON VALLEY MICROM CORPORATION
- 当前专利权人地址: US CA San Jose
- 主分类号: H02P6/06
- IPC分类号: H02P6/06 ; G05D1/02 ; H04Q9/00 ; H02K11/00 ; H02P6/16
摘要:
A brushless D.C. motor has a rotor with a plurality of magnets secured to a mounting surface. Each magnet has an RF transmitter secured to a magnet surface, with each RF transmitter having stored therein a unique identification character serving to identify the magnet. A transmitter power generator having several coils mounted on the rotor and a power conditioning unit supplies power to the transmitters, which continuously broadcast their identification character. A stator has a plurality of pole teeth separated by slots, each pole tooth having a power coil wound thereabout. A plurality of RF receiver antennae are mounted adjacent the pole teeth each coupled to a different RF receiver. The position and magnet identification information received by the RF receiver is processed and coupled to a microprocessor, which extracts the information and sends it to a motor controller and driver unit, which supplies operating power to the individual power coils.
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