Motor school training courses in Austin, TX (public, in-house or online)

This webseminar is the second part in the “Stepper Motor�series. Full and half stepping algorithms are discussed. Anti-resonance is described along with cause and solution using alternate stepping modes. Drive circuits are introduced using a simple H-bridge design along with recommendations for switching mechanisms.

This web seminar explains a sensorless Brushless Direct Current (BLDC) motor control algorithm, implemented using the dsPIC® digital signal controller (DSC). The algorithm works by the use of a majority function for digitally filtering the back-Electromotive Force (BEMF). Each phase of the motor is filtered to determine when to commutate the motor drive voltages. This control technique excludes the need for discrete, low-pass filtering hardware and off-chip comparators.

This web seminar on brushed DC motor basics is part 1 of a four part series of web seminars that will go into motor control drive topologies, pulse width modulation ( PWM ), and the new enhanced PWM. Brushed DC Motor Basics will go from the basic parts of a brushed DC motor and how they work to how do they compare to other types of motors.

This seminar provides a brief overview of the hardware architecture used to control stepper motors with a description of decay modes and the key differences between each mode. The principles of Microstepping and control loops will also be covered.

When you complete this lesson, you will understand the principles of operation governing ground fault protection, phase-to-phase short circuit and time overcurrent protection, and motor overload protection.

Describe types of ground circuit connections for a generator.
Compare the current flow for various types of generator ground connections.
Describe the function of a differential current relay.
Discuss the number of relays needed for three-phase, differential overcurrent pro...

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