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  • Surge Voltage Distribution of Form Wound Motor Windings
    to turn voltage of the windings in actual motors to provide the data to support or refute these two accepted beliefs. (There has been previous work done in this area. See Christiansen and Pedersen.) Before moving on there are some concepts that need to be understood. First, the turn to turn voltage
  • Motor Starters
    winding and wye-delta starters can also provide reduced-voltage starting, although technically they are not reduced-voltage starters. Motor windings in multispeed squirrel-cage
  • Encoders for Brushless Motor Commutation
    The process of steering current through the appropriate motor windings in order to produce output torque is called commutation. In brush motors, commutation is accomplished electro-mechanically via brushes and the commutator. In brushless motors, commutation is performed by electronically steering
  • Application Note: EMX3 Motor Overload Protection (.pdf)
    EMX3 motor overload protection is provided by a second order thermal model. This highly advanced protection method combines co-dependent thermal modeling of the motor windings and the motor body (the iron case), with allowance for different cooling rates when the motor is running and when it is off
  • Sensored BLDC Motor Control Using dsPIC30F2010
    on BLDC motor details. BLDC motors are basically inside-out DC motors. In a DC motor the stator is a permanent magnet. The rotor has the windings, which are excited with a current. The current in the rotor is reversed to create a rotating or moving electric field by means of a split commutator
  • Stepper Motor Closes The Loop Around Tough Moves
    is greater than +-1.8 , the motor switches to closed-loop mode. The position is corrected by exciting the motor windings to generate maximum torque based on the rotor position. For short and quick moves, the AlphaStep outperforms comparable stepper motors. Because it utilizes 100% of its torque, it moves
  • Stepper Motor Theory
    Motors convert electrical energy into mechanical energy. A stepper motor converts electrical pulses into specific rotational movements. The movement created by each pulse is precise and repeatable, which is why stepper motors are so effective for positioning applications. Permanent Magnet stepper
  • AC Motor Overview
    Asynchronous motors and synchronous motors are the two main categories of ac motors. The ac induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary. The primary winding (stator) is connected to the power source and the shorted secondary
  • Brushed DC Motor Fundamentals
    Brushed DC motors are widely used in applications ranging from toys to push-button adjustable car seats. Brushed DC (BDC) motors are inexpensive, easy to drive, and are readily available in all sizes and shapes. This application note will discuss how a BDC motor works, how to drive a BDC motor

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