×

Medical fluid machine having solenoid control system with temperature compensation

  • US 7,746,620 B2
  • Filed: 02/22/2008
  • Issued: 06/29/2010
  • Est. Priority Date: 02/22/2008
  • Status: Active Grant
First Claim
Patent Images

1. An electromechanical solenoid control system comprising:

  • an electromechanical solenoid including an armature and a coil;

    a voltage source;

    a switching device configured to selectively apply power from the voltage source to the solenoid coil; and

    a control element connected electrically to the switching device and operable to receive at least one signal indicative of a resistance of the coil and use the signal to control the switching device to selectively apply power from the voltage source to the solenoid coil to optimize a variable hold power.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×