Quote:
Originally Posted by MPaulHolmes
Well, I was experiencing "shoot-thru" as they say. My turn off times were so dang long that the built-in dead times that I had weren't long enough, so both the high and low of each of the 3 phases were on at the same time for short instances, which creates an unholy amount of heat. I feel very sure that the reduced gate resistor sizes will take care of that.
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An old Philips digital amplifier I have had a similar design problem. The driver chips have programmable dead times, but it turns out the resistors that set the dead times were actually way out of spec! I replaced them with the suggested values in the datasheet and the amplifier now uses only 20w in idle instead of 44w.
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If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...
Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
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