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  • Hi-L Technique For DC Surge Testing
    This I-Presentation is a short introduction to a new technique that will offer users of high voltage test equipment that have motors with high impedance to view better qualified information about DC machines. This technique is designed to look at certain types of DC windings operated with direct
  • Regeneration vs. Dynamic Braking in DC Drives
    Both regeneration and dynamic braking (DB) slow down a rotating DC motor and its load, but when should one method be chosen over another, or when possibly should both be used? There are significant differences in stopping time, controllability during stopping, and safety issues depending how one
  • Motion Control - A shortcut to sizing motors
    Motor constant aids in selecting dc motors in motion-control applications. Brushed and brushless dc motors are a good choice in power sensitive or efficiency craving applications. A lot of times, a dc motor or generator data sheet will include the motor constant K , which is the torque sensitivity
  • Braking and Regenerative Energy with AC Drives
    What is Regenerative Energy? When a motor turns faster than the commanded speed as set by its AC variable speed drive, the motor in effect acts as a generator. An example of this would be the control of an elevator car as it descends. With the help of gravity, the load will readily lower. In fact
  • Using Regenerative Converter Units to Recover Over Voltage Energy in AC Drive Systems (.pdf)
    Regeneration occurs in an AC variable frequency drive system when the load overhauls the motor. This can occur when trying to decelerate the load, or when some external force causes the motor to overhaul, causing the motor to act like a generator. The energy contained in the rotating equipment
  • MSK4225 Closed Loop Controller
    The MSK4225 is a MOSFET H bridge with internal gate drive and a PWM. generator, all in one convenient package. This configuration can be used to control a. variety of loads, such as a brushed DC motor or a voice coil. Because of the internal. PWM generator, all the user needs to do is provide
  • Wheel may fly high
    /epoxy composites for the flywheel's rotor, low-loss magnets for the bearings, high-speed electric motors and generators for energy conversion, and computer algorithms for motion control. This particular flywheel, enclosed in an aluminum vacuum vessel, consists of a high-speed brushless dc motor, upper
  • Whistle While You Work
    switches and circuit board are all parts of the furnace system that require adequate 12-volt DC power. Whether you are relying on house batteries, the generator, or shore power, test the source to confirm proper amperage is supplied. Operating the RV furnace on voltage less than 10.5 can be compared

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