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Chip Amps Amplifiers based on integrated circuits

3886x3 vs 49830
3886x3 vs 49830
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Old 26th March 2008, 05:59 PM   #11
Phil Olson is offline Phil Olson  United States
diyAudio Member
Join Date: May 2006

I'll not be putting protection on the amp itself, my concern is the supply going high enough to kill the 3886. My previous life was spent doing switching power supplies for ultra reliable applications, (voice/data sytems in high reliability/availability environments). Worst case I could do some low noise switchers.

I think I'll also do a PA150 design with a differential input so I can play with a BPA topology via swapping differential leads. If I have an input impedance of 20K differrential and parallel two, that would still give a 10K differential which should be adequate.

One nice thing about being retired is that I can take the time to play a little.
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