Patents Examined by Connie Harris
  • Patent number: 6509706
    Abstract: A wiper control apparatus includes a combination switch 2, a wipermotor 7, an autostop (AS) switch 8, a first semiconductor switch element 4 for on/off controlling energization of the wiper motor, a second semiconductor switch element 5 for turning on a closed circuit which passes a reverse current through the wiper motor 7 while the energization for the wiper motor 7 is off, a controller for ON/OFF controlling the first and the second semiconductor switch element, a current detecting resistor RS1 for current flowing through the second semiconductor switch 5, and accent limiting circuit A for limiting the current flowing the second semiconductor switch element 5 when the current detected by the current detecting means RS1 exceeds a prescribed threshold value.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: January 21, 2003
    Assignee: Yazaki Corporation
    Inventor: Hiroo Yabe