Hi, maybe you can help me with some design,

Please try to answer those two questions:
1. Does the motor with 7 pole pair offers approximately 7 times slower minimum (stable) speed then the motor with 1 pole pair ?

2. Let's say I'm using vector control for achieving the minimum stable speed and I get 10rpm. Could you take an educated guess and say what would probably be the min stable speed using scalar control, or even more simple, using Trapezoidal control with hall sensors?

If yo don't know the answers to both questions please answer the one you know.

Tnx

Yes. twice in one night.

Yes. twice in one night.

lol:rolleyes::tongue:

ive seen it all now lol

#1. Simple yes.

#2. Depending on the parasitic whirling ocillation of the parsipial mode, you would experience an anular quasi inepular of around 32 degrees kelvin. In other words, the hall sensors would be useless once power is applied. Good luck, Ron

I concur.

you maybe ONto something

#1. Simple yes.

#2. Depending on the parasitic whirling ocillation of the parsipial mode, you would experience an anular quasi inepular of around 32 degrees kelvin. In other words, the hall sensors would be useless once power is applied. Good luck, Ron

And I thought I had these brushless motors all figured out! LOL!

I just need a flux capacitor

I just need a flux capacitor
and 1.21 jiggawatts!!!:thumbsup:

and 1.21 jiggawatts!!!:thumbsup:

What the hell is a Jiggawat

Jake

What the hell is a Jiggawat

Jake

It's like a Gigawatt....only more "rural"

It's like a Gigawatt....only more "rural"

now thats funny right there ,i dont care who u are:thumbsup: