"Jon Elson"
Phil Allison wrote:
"Jon Elson"

IGBTs in an audio amp sounds really odd to me, I'll bet a set of
FETs could have been dropped into it perfectly.


** Switching PSUs in many high powered audio amps use IGBTs - often in
parallel groups. The topology is a driven, square wave inverter - no
feedback or regulation is needed.

OK, in the off-line DC power supply section, this makes perfect sense!
Not in the audio amp section.

** But no body said that they were used there, you misread Arthur's post.

" A while ago, I had the misfortune to work on a switcher that was
in a Yammy powered speaker."

The "switcher " is the PSU.

..... Phil