Urs Kafader
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Formulae Handbook
The extensive collection with illustrations and descriptions includes formulas, terminology and explanations of the calculations that are relevant for drive systems. A flow chart provides assistanc...
Encoder selection
Selection rules for incremental encoders in the event of speed and position control.
Motor constants
This article describes the relationship between the different motor constants (e.g. speed and torque constant). Generally, motor constants result from the construction details of a given motor. Suc...
Controller selection
Find a suitable controller that matches the task and the master.
Assigned power rating of DC / EC (BLDC) motors
Definition assigned power rating The assigned power rating is calculated with the max. continuous torque of the motor type and a speed lying below the max. permissible speed of the motor. Continuou...
Winding selection
How do I select the ideal motor type winding?
Continuous operation range of BLDC (EC) Motors
Topic: Why is the border line of the continuous operation range of EC motors curved? Technical Background & Solution: Border continuous operation range The border of the continuous operation ran...
The perfect motor size
How do I select the right motor type?
Strength of BLDC (EC) motor with sinusoidal commutation
Is a EC motor with sinusoidal commutation stronger? The difficulty answering this question is to find and to define reasonable references. We restrict us here on current and torque considerations. ...
Gearhead selection
Selection rules for gearheads based on torque and speed.