How to control angle of the permanent magnet field DC motor

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Ramesh_maharjan

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control angle

What should i do to control the angle motion of DC motor with permanent magnet field.
 

pm motor control angle

perhaps you should check out servo systems; dc motors with feedback to control the positioning of the motor shaft. try to google out.
 

Re: How to control angle of the permanent magnet field DC mo

You can't control too much. As long there is a coil in the stator and a coil on the rotor, and usually those are connected in series, the only one thing you could do is changing the voltage across the series coil or the current value. PWM is the most common methode, but also linear regulation is a choice for small motors.
There is a limit low voltage (current) below which the mechanical couple at the motor shaft is dramaticaly small. The real chalange with DC motors is keeping a constant couple at variable speed.
 

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