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Re: Modeling motor control
Hey all. Just to add to the confusion and all, the Black Jags seem to operate somewhat differently than the Tans. I know, I was surprised too. Anyways, the reference design of the Black Jags is also high-side switching, BUT it switches the high and low side FETS on the pulsed leg.
Ex: at +25% command, M- low is ON, M+ high is ON 25% of the cycle, M+ low is ON 75% of the cycle.
So on the Black Jags, you don't need to worry about any diode drops in the off phase, save for the vanishingly small slice of dead time to prevent shoot through.
Isn't this so much more fun than rumor mongering?
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The difficult we do today; the impossible we do tomorrow. Miracles by appointment only.
Lone Star Regional Troubleshooter
Last edited by Kevin Sevcik : 06-01-2011 at 17:25.
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