Electronically Commutated Furnace Fan Motor Operating as an Electrical Alternator

Can an electronically commutated furnace fan motor driven by an external source produce enough voltage and current to present a safety hazard? Would it make a useful source of electrical energy if you were to use it as an alternator? What does the output waveform look like on an oscilloscope? Electronically Commutated Motors (ECMs) have been growing in popularity for HVAC use. They are brushless DC motors having a permanently magnetized rotor. Their advantage is one of infinitely variable speed as compared

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