But... But... But... This has to be wrong! My 2800W PMPO amplifier says it consumes only 60W on its 120VAC input!Power out will always be less than power in. Sometimes it will be much less.
Of course, we must all sign that Ironclad NDA (there is no such thing according to the courts) in order to be blessed with the details. Thanks, but time for lunch.It seems like at least once a week we have a new poster here insisting they have found a magical way to get more power out of a device then they put in (but, of course, the details are secret).
The working technique is to have other people put power in, violating the laws of the land is possible unlike the laws of physics.It seems like at least once a week we have a new poster here insisting they have found a magical way to get more power out of a device then they put in (but, of course, the details are secret).
In DC-DC conversion schemes it is usually not a consideration. Power factor usually shows up when there is an AC source with a reactive load. This can be identified by noting the phase difference between the voltage waveform and the current waveform. The definition is in fact the cosine of the phase difference. For a zero phase difference the cosine of that is 1 and it represents a pure resistive load. In DC power supplies you are mostly dealing with resistive loads.powerout/powerin = efficiency; Is power factor a consideration?
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by Jake Hertz