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Motor Controllers:

D-MIC Motor Identification Chip

● The D-MIC is a fitted in the motor μControllerD-MIC
● It supplies the Deutronic D-Sinus Motor Controller with motor specific data and measures motor temperature
 ● All values can be read out
 ● via Serial Single Wire Communication
 ● D-Sinus motor controllers are state of the art sinusoidal commutated speed controllers. This commutating principle regulates motor current to a sine wave. This is done to ensure an ideal and highly effective motor control.
  95_Grafik Drehwinkel.png
 ● Integrated current monitoring prevents the motor “overrunning”. The main benefits of sinusoidal commutated speed controllers compared with block commutation are significantly smoother motor running and less motor warming.
 ● As an overview there follows a short description of block and sinusoidal commutation:
 ● Block commutation:
 ● Motor with n pole pairs (positioned at 60°/n exactly known; commutation every 60°/n).
 ● Block-shaped phase current (torque ripple, vibrations, hum)
 ● Blockcommutation with or without Hall sensors is characterized by an abrupt switching of the motor current every 60° (or after every 60°/n).
  96_Grafik Sinusoidal phase currents.png
 ● Sinusoidal commutation:
 ● Sinusoidal phase currents (120° phase displacement, similar to synchronous motors with variable frequency, no torque ripple, high synchronism, high starting torque).
 ● High synchronism is achieved by gradually aligning the phase currents.
 ● Increased efficiency due to sinusoidal current waveform, created torque is constant in contrast to block commutation.