Motor Speed Control: Design & Considerations

AI Thread Summary
Designing a motor speed control using IGBTs rated at 600V and 60A is feasible, even with a lower voltage DC motor. It is essential to consider the efficiency of the system, especially when the load draws significantly less power than the maximum transistor rating. Key factors include managing heat dissipation, ensuring proper switching frequency, and implementing effective control strategies. Additionally, understanding the characteristics of brushless DC (BLDC) motors can enhance performance and control. Overall, careful design considerations will lead to a successful motor speed control system.
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I am interested in designing a motor speed control. I am thinking I would like to use IGBTs as the power transistors, 600V 60A max ratings. I do not have a motor yet. Will it be possible to use a motor rated at a much lower voltage? It will probably be a DC motor in some type of small electric vehicle, and i haven't really seen high voltage DC motors.

What sort of things do I need to consider when the load is drawing much less power than the max rated power of the transistor (efficiency, etc)? Any information on the matter will be helpful. Thanks for any reply.
 
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