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- Jan 21, 2010
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I'm basically going to be doing these calculations.
I'm going to see what you can expect if you drive the gate from the arduino output.
I'll then repeat that using one of the gate drivers I mentioned.
In both cases you'll find that power dissipation will rise with frequency, and there will be some practical maximum frequency. In the case of the direct drive from the arduino the dissipation at a given frequency will be much higher, and subsequently the maximum practical frequency will be much lower.
Having said that, I can't see that you'd want to drive the motor at 60kHz, but you may well want to drive it at much faster than 60Hz too.
I'm going to see what you can expect if you drive the gate from the arduino output.
I'll then repeat that using one of the gate drivers I mentioned.
In both cases you'll find that power dissipation will rise with frequency, and there will be some practical maximum frequency. In the case of the direct drive from the arduino the dissipation at a given frequency will be much higher, and subsequently the maximum practical frequency will be much lower.
Having said that, I can't see that you'd want to drive the motor at 60kHz, but you may well want to drive it at much faster than 60Hz too.