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Asymmetrical driver

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02P-006/14
  • H02P-003/14
  • H02P-003/22
  • H02M-007/5388
  • H02P-006/08
  • H02P-007/29
  • H02P-007/18
  • G05F-001/00
출원번호 US-0620929 (2009-11-18)
등록번호 US-9391544 (2016-07-12)
발명자 / 주소
  • Bonvin, Frederic
출원인 / 주소
  • STMicroelectronics, Inc.
대리인 / 주소
    Seed IP Law Group PLLC
인용정보 피인용 횟수 : 0  인용 특허 : 46

초록

A drive circuit having asymmetrical drivers. In an embodiment, a brushless DC motor may be driven by a drive circuit having three high-side MOSFETs and three low-side MOSFETs. A driver controller turns the MOSFETs on and off according to a drive algorithm such that phase currents are injected into m

대표청구항

1. A controller, comprising: a disk-drive controller operable to control operation of a disk drive; anda drive circuit coupled to the disk-drive controller and operable under control of the disk-drive controller to control operation of a motor in the disk drive, the drive circuit comprising a first

이 특허에 인용된 특허 (46)

  1. Abu Qahouq, Jaber; Huang, Lilly, Adaptive controller with mode tracking and parametric estimation for digital power converters.
  2. Abu Qahouq, Jaber; Huang, Lilly, Adaptive controller with mode tracking and parametric estimation for digital power converters.
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  5. Menegoli, Paolo; Sawtell, Carl, Class H drive.
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  8. Mller Rolf (St. Georgen DEX), Collectorless direct current motor, driver circuit for a drive and method of operating a collectorless direct current mo.
  9. Rolf Mueller DE, Collectorless direct current motor, driver circuit for a drive and method of operating a collectorless direct current motor.
  10. Williams Richard K. (Cupertino CA) Chang Allen A. (Milpitas CA) Concklin Barry J. (San Jose CA), Disconnect switch circuit to power head retract in hard disk drive memories.
  11. Bennett, George J.; Ryan, Robert P., Disk drive comprising a pulse width modulated demand limit circuit for enhancing power management during spin-down.
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  13. Ho,Peter Kuikong; Nguyentran,Lee DuyLy; Ting,Bond Yen; Vu,Phong Van, Disk drive with adaptive actuator braking upon unexpected power loss.
  14. Fukamizu,Shingo; Yamamoto,Yasunori; Tamaoka,Shuji, Drive apparatus.
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  26. Hoogzaad, Gian, Method for controlling a deceleration process of a DC motor and controller.
  27. Galbiati Ezio,ITX ; Boscolo Michele,ITX ; Viti Marco,ITX, Method of PWM driving a brushless motor with digitally stored voltage profiles with reduced losses.
  28. Lys, Ihor A., Methods and apparatus for providing a controllably variable power to a load.
  29. Salina Alberto,ITX ; Brambilla Donatella,ITX, Mixed PWM/linear mode driving system employing two distinct output power stages.
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  31. Kanai, Tomoaki, Motor control microcomputer and control method for the same.
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  33. Lys,Ihor A., Power factor correction control methods and apparatus.
  34. Densham, William L.; Popescu-Stanesti, Vlad Mihail; Spiridon, Constantin, Power management for battery powered appliances.
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  36. Mazda Babak, Power off velocity control for disk drives.
  37. Hill, Christopher L.; Korbel, Garry E., Power supply output control apparatus and method.
  38. Yamashita, Masaki; Ota, Chisako, Programmable constant voltage retract of disk drive actuator.
  39. Kelly, David W.; Brenden, Jason P.; Peterson, Michael J., Programmable pulse width modulated waveform generator for a spindle motor controller.
  40. El Sherif,Alaa Y.; Plutowski,Eugene F.; Ziemer,Kevin W., Rejection of power supply variations for gain error cancellation in pulse-width-modulated motor controllers.
  41. Popescu-Stanesti, Vlad; Niculae, Marian; Bucur, Constantin, Selector circuit for power management in multiple battery systems.
  42. Leong,Foo Leng; Chui,Siew Yong; Teoh,Cheng Yong; Rana,Sakti Pada, System and method for detecting back electromotive force with automatic pole calibration.
  43. Kelly David W. ; Peterson Michael J. ; Brenden Jason P., Three-phase generator boost circuit.
  44. Li, Ying Tian; Chui, Siew Yong; Teoh, Cheng Yong, VCM PWM control architecture for power saving in hard disk drives.
  45. Li, Ying Tian; Chui, Siew Yong; Teoh, Cheng Yong, VCM PWM control architecture for power saving in hard disk drives.
  46. Houston, Michael J.; Saunders, Christopher S., Varying operation of a voltage regulator, and components thereof, based upon load conditions.
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