400 Hz

Dr. Erik Baigar erik at baigar.de
Thu May 6 02:59:22 CDT 2021

>> Applying a square wave of 15kHz has harmonics up to 100kHz and more.
>> That means, that the current in these is more than 100 times bigger - BAM!
> Additionally, output devices with really fast switching times can trigger 
> reflections back from the load, and these can potentially expose these 
> devices to very high reflected voltages, which will trigger their breakdown.?

Yes, can definitively happen. The small modern ones with the
digital DSPs recognize this and get an error message, but bigger
ones might noch have enough time before failure! Good input

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