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Racer (rulerfrancis)
Race Number 1125
Date Fri, 13 Dec 2019 20:38:20 +0000
Speed 68 WPM Try to beat?
Accuracy 97.4%
Rank 5th place (out of 5)
Opponents andylocks (1st place)

Text typed:

There are many other ways of programming the switching sequence, which will not be discussed here. In many cases the switching sequence is under computer control. In the simple method used above, the intention is to show the fundamental principle upon which pulse width modulation is used.
Electrical Machines, Drives, and Power Systems (book) by Theodore Wildi (see stats)