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특허 상세정보

Motor control with clamped filter output

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02P-007/30   
미국특허분류(USC) 388/800 ; 388/809 ; 318/632 ; 323/282
출원번호 US-0140220 (1993-10-21)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Galanthay
인용정보 피인용 횟수 : 19  인용 특허 : 10
초록

A motor control circuit, including a filter amplifier which includes a clamping circuit to limit the maximum voltage of the filter amplifier. The filter amplifier is clamped to essentially the same level as the following error amplifier, which drives the power transistor which drives the motor. Thus, the requisite control voltage is normally present anyway (since this voltage is used to limit the amount of maximum current in the motor). Since the corresponding level of current is selected to ensure adequate current during start up, this signal is therefo...

대표
청구항

[ What is claimed is:] [1.] A control circuit, comprising:a filter amplifier comprising a first input operatively connected to receive a command voltage and a second input operatively connected to receive a reference voltage, and further comprising one or more passive elements connected therewith;an error amplifier, integrated with said filter amplifier, and comprising a first input operatively connected to be driven by an output of said filter amplifier, an output connectable to drive a power transistor, and a second input connectable to receive a feedb...

이 특허를 인용한 특허 피인용횟수: 19

  1. Clarke, David; Daly, Paul; McGuinness, Patrick; Stenson, Bernard; Deignan, Anne. Apparatus for electrostatic discharge protection. USP20190210199482.
  2. Coyne, Edward. Apparatus for electrostatic discharge protection. USP2014068742455.
  3. Shao,Jianwen; Nolan,Dennis. Back EMF detection circuit and method for a sensorless brushless DC (BLDC) motor. USP2007117301298.
  4. Ogawa, Takashi; Sakurai, Kohei; Morita, Yuichiro. Construction machine. USP2017049621079.
  5. Mehedi Hassan ; Fredrick W. Trafton ; Bert J. White ; Vincent T. Ng. Current mode approach to spindle motor current control and rotor position sense. USP2002106462496.
  6. Coyne, Edward John; McGuinness, Patrick Martin; Daly, Paul Malachy; Stenson, Bernard Patrick; Clarke, David J.; Bain, Andrew David; Lane, William Allan. Electrostatic protection device. USP20180810043792.
  7. Coyne, Edward John; McGuinness, Patrick Martin; Daly, Paul Malachy; Stenson, Bernard Patrick; Clarke, David J.; Bain, Andrew David; Lane, William Allan. Electrostatic protection device. USP2016129520486.
  8. Schillaci Luca,ITX ; Nessi Maurizio,ITX ; Bollati Giacomino,ITX ; Galbiati Ezio,ITX. Low jitter zero crossing BEMF detector and motor incorporating the same. USP2000076094022.
  9. Busch Peter,DEX. Method and circuit configuration for detecting the rotational speed of electronically commutated fans. USP2001086274991.
  10. Knight,Jonathan R.; Miyanohara,Akihiko. Method for voltage feedback for current mode linear motor driver. USP2007047205736.
  11. Coyne, Edward. Overvoltage and/or electrostatic discharge protection device. USP2014088816389.
  12. Coyne, Edward. Overvoltage and/or electrostatic discharge protection device. USP2014088803193.
  13. Coyne, Edward John. Overvoltage blocking protection device. USP20190110181719.
  14. Coyne, Edward John; Twomey, John; Whiston, Seamus P.; Clarke, David J.; McAuliffe, Donal P.; Lane, William Allan; Heffernan, Stephen Denis; Moane, Brian A.; Sweeney, Brian Michael; McGuinness, Patrick Martin. Overvoltage protection device and method. USP2016119484739.
  15. Masuda,Kazunori. Power supply device with dead-time control and printing apparatus having the same. USP2007107279874.
  16. Chang, Chao-Hsin; Pan, Meng-Jeong. Protection device and method for electronic device. USP2017119825454.
  17. Ji, Honghao; Seo, Dongwon. Self-sensing reverse current protection switch. USP2017079705307.
  18. Fu,Zhenxing; Weinschenker,Lars; Li,JingChuan. Sensorless position detection for a brushless direct current motor during inverter standby. USP2009027489097.
  19. Li Larry B.. System and method for controlling high side slew rate in a spindle motor driver. USP2000066072289.