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  • Is Only using a little electricity to create (or allow) alot is possible? Yes.

  • Hello! I have a stratix ii development kit board, could i use it to control my brushless motor? i will apreciate any help in this.

    Thank you!

    Alex.

  • Nice Video.

    I can't help but think that an encoder would give even better control.

    ;)

  • @QuantumDevices for industrial purposes encoders are sensors that can only work in certain environmental conditions. also they cost money.... very expensive in mass production...

  • @kewat1 I guess I should define what I meant by "better control". Using a sensor like an encoder can certainly give you more precise positioning or a tighter velocity control loop.

    This is much in the same way using a speedometer to regulate your speed is better than trying to judge your speed by just looking out the window.

    With that being said, your statements are also true and not every application requires a high level of precision.

  • @QuantumDevices Anyone who knows about encoders and motor control could say that encoder feedback has it's limitation with it's "physical resolution", and certainly with respect to a BLDC or permanent magnet synchronous motor, sensorless control is certainly more precise than sensored control. The most "precise" positioning of a BLDC motor's rotor is given by the vectorial sum of the back EMF space voltage vectors in which no physical sensors are used. maybe you should think about what u say sir

  • @QuantumDevices I am actually working on sinusoidal control of BLDC using sensors for my bachelor project, I am provided with both hall effect sensors and encoders. I am kind of stuck cuz all the applications and examples I see on web are sensorless control of BLDC. can anyone help to find an algorithm for sinusoidal control of BLDC using sensors ?!

  • isn't Brushless DC actually a Permanent Magnet Synchronous Motor ?

  • Basically yes. The only difference is that you use rectangular currents for a brushless DC drive and sinusoidal currents for a PMS drive.

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