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특허 상세정보

Method and apparatus for driving a sensorless BLDC motor at PWM operation mode

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02P-005/06   
미국특허분류(USC) 318/254; 318/138; 318/439
출원번호 US-0964757 (2001-09-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Birch, Stewart, Kolasch & Birch, LLP
인용정보 피인용 횟수 : 24  인용 특허 : 6
초록

A control system operates with a PWM speed regulation of a sensorless BLDC motor with a plurality of windings. A hybrid method is present in the invention utilizing BEMF induced in stator windings to indicate the commutation instant and a falling edge detection method to override PWM chopping and commutation noises. The present invention achieves reliable sensorless rotor position detection with relative concise and low cost circuit as well as little software expense. The control device of the present invention includes a comparator for generating the BE...

대표
청구항

A control system operates with a PWM speed regulation of a sensorless BLDC motor with a plurality of windings. A hybrid method is present in the invention utilizing BEMF induced in stator windings to indicate the commutation instant and a falling edge detection method to override PWM chopping and commutation noises. The present invention achieves reliable sensorless rotor position detection with relative concise and low cost circuit as well as little software expense. The control device of the present invention includes a comparator for generating the BE...

이 특허를 인용한 특허 피인용횟수: 24

  1. Kim,Tae Duk. Apparatus for driving brushless motor and method of controlling the motor. USP2006047023173.
  2. Schwarzkopf, Johannes. Asymmetric control system for a sensorless and brushless electric motor. USP2010077750585.
  3. Grogg, Silvio; Stäheli, Curdin; Ochsenbein, Martin. Brushless DC-motor. USP2012118314580.
  4. Pollock, Charles; Pollock, Helen. Control of electrical machines. USP2012108294401.
  5. Mullin, Paul Steven; Branecky, Brian Thomas. Electrical machine and method of controlling the same. USP2009047514887.
  6. Mullin, Paul. Electrical machine, method of controlling an electrical machine, and system including an electrical machine. USP2014128901867.
  7. Ang,June Christian; Ooi,KianKeong; Chiang,WingKong; Ding,MingZhong. Electrical phase compensation in BEMF spindle motor control. USP2007017170249.
  8. McGill, Ian Campbell; Tian, Zhuang. Linear compressor controller. USP2010027663275.
  9. Cheng, Kuang-Yao. Method and circuit for controlling motor and brushless motor system using the same. USP2010017649329.
  10. Sauter, Johannes; Buerk, Richard. Method and circuitry arrangement for operating a brushless electric motor. USP2010117839107.
  11. Liu, Ke; Kirkpatrick, Scott; Makaran, John. Method and system for determining electronic commutation in brushless DC machines irrespective of the placement of rotor position sensors. USP2005026850022.
  12. Viti,Marco. Method for detecting the angular position of a rotor in a brushless electric motor. USP2007067235939.
  13. Disser,Robert J.; Crabill,Monty L.. Method for producing voltage waveforms in a PWM motor controller of a PM DC brushless motor. USP2008077402969.
  14. Chen, Chi-Lun. Method for protecting an electronic device driven by DC motor and circuit for detecting positioning signals thereof. USP2011128076888.
  15. Mullin, Paul S.. Method of controlling an electrical machine. USP2017019559623.
  16. Chen, Chi-Lun. Method of protecting an electronic device driven by DC motor and circuit for detecting positioning signals thereof. USP2010107816882.
  17. Nishihara,Keiji; Nobekawa,Hideo; Mori,Hideaki; Gotou,Makoto. Motor driver. USP2006107126301.
  18. Hirzel,Andrew D.. Selective alignment of stators in axial airgap electric devices comprising low-loss materials. USP2006047034427.
  19. Hirzel,Andrew D.. Stator coil arrangement for an axial airgap electric device including low-loss materials. USP2007037190101.
  20. Wang, Yongbing; Wu, Yunfeng. Three-phase detection module. USP2014058724275.
  21. Wu, Yunfeng; Wang, Yongbing. Three-phase detection module. USP2012018107204.
  22. Wu, Yunfeng; Wang, Yongbing. Three-phase detection module. USP2017019557389.
  23. Brown, Ward R.. Variable pulse width modulation for reduced zero-crossing granularity in sensorless brushless direct current motors. USP2012108278860.
  24. Rizzo, Richard. Wild frequency avionic refrigeration system and controller therefor. USP2010057721564.