Quote:
Originally posted by unregistered
just wanting some good info on MTBF as a function of PWM freq
(though such is also related to the subsequent filtering of course)
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It is much more difficult to filter low frequencies than high. With the components available these days, there is no justification (other than ignorance?) to using a low frequency signal.
Sorry I have no source of accurate data. Is suspect you are going to just have to do as the TEC manufacturer, and just say, 'Don't do it.'