Hi Bob,
First, in addition to providing noise rejection, I should also have mentioned rejection of harmonic distortion, dc offset, and other low frequency anomalies that are usually present to some degree on ac power.
One way to explain why all of those things get rejected, or at least substantially reduced, would be to say that if we consider the ac power being put out by the regenerator as a signal, the ac power coming in from the wall outlet is not in the signal path, it is only in the path of the regenerator's internal dc power supply.
Basically the 60Hz sine wave put out by the oscillator is generated by the oscillator, and is a different signal than the incoming ac. And the oscillator circuit is not powered by the ac, it is powered by dc created in the regenerator's power supply from the incoming ac, and the rectification and filtering in that power supply result in the dc being a lot cleaner than the incoming ac. And, finally, the oscillator circuit will have additional filtering of its dc power at its specific location, in the form of capacitors.
Visualize a piece of electronic test equipment that generates a 60Hz sine wave, while being powered by ac from the wall. In fact, a cd player playing a cd on which a 60Hz tone is recorded can be considered to be a 60Hz oscillator. Clearly the 60Hz sine wave that it supplies on its output connectors will be a whole lot cleaner than the 60Hz ac that goes into the cdp.
Regards,
-- Al
First, in addition to providing noise rejection, I should also have mentioned rejection of harmonic distortion, dc offset, and other low frequency anomalies that are usually present to some degree on ac power.
One way to explain why all of those things get rejected, or at least substantially reduced, would be to say that if we consider the ac power being put out by the regenerator as a signal, the ac power coming in from the wall outlet is not in the signal path, it is only in the path of the regenerator's internal dc power supply.
Basically the 60Hz sine wave put out by the oscillator is generated by the oscillator, and is a different signal than the incoming ac. And the oscillator circuit is not powered by the ac, it is powered by dc created in the regenerator's power supply from the incoming ac, and the rectification and filtering in that power supply result in the dc being a lot cleaner than the incoming ac. And, finally, the oscillator circuit will have additional filtering of its dc power at its specific location, in the form of capacitors.
Visualize a piece of electronic test equipment that generates a 60Hz sine wave, while being powered by ac from the wall. In fact, a cd player playing a cd on which a 60Hz tone is recorded can be considered to be a 60Hz oscillator. Clearly the 60Hz sine wave that it supplies on its output connectors will be a whole lot cleaner than the 60Hz ac that goes into the cdp.
Regards,
-- Al