Quote:
Originally Posted by Kevin Kuehn
I suppose if the HOT was self-biased, then it would not provide a large enough current spike as required. Are those running something like a class C TX output?
Kevin
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The HOT under normal operation is either on hard, so the voltage across it is low when current is flowing; or it is completely off, so the current is zero while the voltage is high. Therefore , the power dissipated is low, because the product of (voltage x current) is low or zero. Without the drive waveform, it can be somewhere in between - this condition of having both current and voltage means that the power dissipated in the HOT goes up drastically.