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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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SPMD250STP Fiches technique(PDF) 21 Page - STMicroelectronics |
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SPMD250STP Fiches technique(HTML) 21 Page - STMicroelectronics |
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21 / 29 page  SPMD250STP Multi modules application 21/29 10 Multi modules application In complex systems, many motors must be controlled and driven. In such a case more than one SPMD250STP must be used. To avoid chopper frequencies noise and beats, all the modules should be synchronized. If all the motors are relatively small, the fast decay may be used, the chopper frequency does not need any adjustement and Figure 17 shows how to synchronize several modules. When at least one motor is relatively large a lower chopper frequency and a slow decay may be required: In such a case the overall system chopper frequency is determined by the largest motor in the system as shown in Figure 18. Figure 17. Multimotor synchronization, small motor and fast current decay SPMD250STP SPMD250STP SPMD250STP |
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