Quote:
Originally Posted by Al Skierkiewicz
I am simply suggesting that an estimate of power dissipated can be made if one ignores rise time for this discussion.
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If you "ignore rise time" and
assume that "full power is being applied during the pulse" you will get a
very wrong answer if your assumption is wrong.
I do not know what the inductance of the RS775 is, but even if it is as small as 20 micro Henries, then power consumption at 20% duty cycle (with a Jag and locked rotor) will be roughly 40 watts,
not 213.6 watts.
If anyone reading this has access to the necessary test equipment and would be willing to measure locked-rotor inductance of the RS775 and post the result here, I will run a simulation and post a graphic of the current waveform (and power calculation).