POWER OPERATED PULLING TOOLS FOR

Brand Owner Address Description
MMI MAGNUM MANUFACTURING INTERNATIONAL, INC. BOX 408 MCPHERSON KS 67460 POWER OPERATED PULLING TOOLS FOR STRAIGHTENING VEHICLE BODIES AND FRAMES;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. In a method for measuring motor speed and position by detecting the back-EMF generated during pole-pair interactions, fluctuations of a three-phase motor power supply that may affect back-EMF detection are reduced. One phase of the power supply is tristated for a certain interval preceding and during back-EMF detection. For a shorter interval during back-EMF detection, the voltage drop across the motor is reduced from the full power supply voltage. This preferably is accomplished either by pulling a first of the other two power supply phases low, while pulling a second of the other two power supply phases up to a regulated voltage below the power supply voltage, or by pulling the second of the other two phases up to the power supply voltage and pulling the first of the other two phases down to a regulated voltage above ground.