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특허 상세정보

Method of operating a drive circuit for a solenoid

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H03K-003/00    F02M-039/00   
미국특허분류(USC) 327/110 ; 123/490
출원번호 US-0788785 (1997-01-24)
우선권정보 GB-0013684 (1994-07-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Jacobson, Price, Holman & Stern, PLLC
인용정보 피인용 횟수 : 10  인용 특허 : 5

A method of operating a drive circuit of a solenoid of an electromagnetic device including an armature, the drive circuit including switch means in series with the solenoid, comprising closing the switch means to achieve a high rate of current increase in the solenoid, opening the switch means when the current reaches a predetermined level and allowing the current to decay, the movement of the armature from a first to a second position being completed whilst the current is decaying and monitoring the decaying current using a sensing circuit which include...


[ We claim:] [1.] A method of operating a drive circuit which controls the flow of current in a solenoid winding of an electromagnetically operable valve having an armature coupled to a valve member, the armature and valve member being movable from a first position to a second position under the influence of a magnetic field generated by the solenoid winding, the solenoid winding having electrical characteristics such that movement of the armature is completed after the current in the solenoid winding has reached a peak value, the drive circuit including...

이 특허를 인용한 특허 피인용횟수: 10

  1. Coldren, Dana R.; Lewis, Stephen R.; Forck, Glen F.; Huffman, Michael R.; Bredesen, Matthew A.. Auxiliary systems for an engine having two electrical actuators on a single circuit. USP2004026684854.
  2. Havanur, Sanjay. Device and method for limiting Di/Dt caused by a switching FET of an inductive switching circuit. USP2011087999600.
  3. Santero,Paolo. Device for control of electro-actuators with detection of the instant of end of actuation, and method for detection of the instant of end of actuation of an electro-actuator. USP2007037191765.
  4. Miyake, Takao; Toyohara, Masahiro; Mayuzumi, Takuya; Ishikawa, Tohru; Oura, Ryoichi. Fuel injection control apparatus. USP2010097789073.
  5. Glavmo Magnus,SEX ; Larsson Magnus,SEX ; Neidenstrom Bo,SEX ; Melin Sven-Anders,SEX. Method and apparatus for controlling and detecting the position of a solenoid-operated valve element. USP1999115995356.
  6. Traversa,Piergiacomo; Pisoni,Alberto. Method for determining the instant of reaching of the stroke end position in the deactivation phase of a movable element having shutter function forming part of a solenoid valve. USP2006067058538.
  7. Hein,Dierk. Method for measuring pressure. USP2008017323858.
  8. Ganev, Evgeni; Warr, William H.. Sensing armature motion in high-speed solenoids. USP2009097595971.
  9. French Michael J. ; Skrzypchak Mark. Start-assist circuit. USP1999115975058.
  10. Onishi, Yoshihiko; Ojima, Kouichi; Tsugami, Hiromichi; Uno, Shigeki; Ikeda, Hiroaki. Variable delivery type fuel supply apparatus. USP2003046546918.