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BLDC Spice model?

F

Fred Bartoli

Jan 1, 1970
0
Le Thu, 23 Aug 2007 08:38:33 -0500, Spehro Pefhany a écrit:
Anyone have a decent Spice model for a BLDC motor?

I see a bunch of IEEE papers and some commercial products on the net,
but nothing freely available.

Thanks!


Best regards,
Spehro Pefhany

I'd expect it to be the same as a regular PM DC motor: windings
commutation is just not done with brushes but otherwise I can't see any
difference.
 
S

Spehro Pefhany

Jan 1, 1970
0
Anyone have a decent Spice model for a BLDC motor?

I see a bunch of IEEE papers and some commercial products on the net,
but nothing freely available.

Thanks!


Best regards,
Spehro Pefhany
 
S

Spehro Pefhany

Jan 1, 1970
0
Le Thu, 23 Aug 2007 08:38:33 -0500, Spehro Pefhany a écrit:


I'd expect it to be the same as a regular PM DC motor: windings
commutation is just not done with brushes but otherwise I can't see any
difference.

I'd like to be able to model, for example, the difference in torque
ripple for sinusoidal vs. trapezoidal commutation, and accurately
model the waveforms at the driving semiconductors. I don't think a DC
motor model will work for that.


Best regards,
Spehro Pefhany
 
R

Rich Grise

Jan 1, 1970
0
I'd expect it to be the same as a regular PM DC motor: windings
commutation is just not done with brushes but otherwise I can't see any
difference.

I'd like to be able to model, for example, the difference in torque
ripple for sinusoidal vs. trapezoidal commutation, and accurately
model the waveforms at the driving semiconductors. I don't think a DC
motor model will work for that.[/QUOTE]

If it's never been done, might you have to *GASP* _MEASURE_ one? ;-)

Cheers!
Rich
 
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