Eddy currents are generated by magnetic induction inside metal, you need a changing or pulsating magnetic field to get them. As in a normal amplifier magnetic fields are minimal the answer to your 2nd question is NO.
You might get eddy currents if metal is close to the output inductor, but still they are too small to have any effect.
Mike
You might get eddy currents if metal is close to the output inductor, but still they are too small to have any effect.
Mike
...at and well above audio frequencies. Eddy currents can be a problem elsewhere (for instance when air core or air gapped inductors are used - like in class D output filters - or at (V)HF) but normally in an audio amp, it's not a problem. One exception is induction from a stray field of a transformer in proximity with the circuit, but _eddy_ surrents would be far less of a problem then actual induced voltages across various circuit parts.
Maybe a bit OT, but very interesting to see how destructive eddy curents can be... 
http://members.tripod.com/extreme_skier/cancrusher/
Look at the Joule numbers used !
Mike
http://members.tripod.com/extreme_skier/cancrusher/
Look at the Joule numbers used !
Mike
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.