Compact TPA3255 design with PFFB and single PS

[JMF11]

And you milled the front plate for the displays and buttons ? Your amplifier looks like a professional work 🙂

Well done !

JMF

 

[zdr]

Thank you 🙂

 

[zdr]

Played a bit with new version of the board, new 48V power supply and new 120W 4.5ohm resistive dummy load. THD measured at 70W RMS calibrated.

 

[zdr]

100W

 

[zdr]

Home made heat sink

 

[zdr]

Can someone recommend good PS for TPA3255?

 

[mahtew]

Products – MicroAudio
Smps 630-so
You'll have to wait a bit for this smps, but it's worth it

 

[zdr]

Thanks, but that seems too expensive. I was thinking more along this price range Switching power supply / power supply 158 W 48 V 3.3 A MeanWell LRS-150-48 transformer driver : Amazon.de: DIY & Tools , or maybe two of these in parallel.

 

[KaffiMann]

Think this was my favourite of the ones I tried, the SE-600-48.
https://www.mouser.com/ProductDetail/MEAN-WELL/SE-600-48?qs=%2B6mEGs9UJHxL%2BTYUfZe8uQ==

 

[MarkB1]

Murata PQC250-48 are nice. I offered this seller $50 usd ea for 10 and they accepted:

PQC250-48, MURATA, AC/DC 250W OPEN FRAME 48V | eBay

 

[bucks bunny]

Thanks, but that seems too expensive. I was thinking more along this price range Switching power supply / power supply 158 W 48 V 3.3 A MeanWell LRS-150-48 transformer driver : Amazon.de: DIY & Tools , or maybe two of these in parallel.

With that price tag I would expect an al cheapo fake. Nothing surprising at all.

 

[zdr]

You mean not a real MW, or MW faking someone else?

 

[Solve]

Mean Well LRS-350-48 or 36v is great.