Been there, done that but using 50V instead to have some headroom for the two SE channels. (Boosted from 37V)
This only works with a fully fidderential source for using the board in BTL. If you use the channels in SE, your source also needs to be single ended. You can't have your board running in BTL when using single ended input as the input stage does invert the signal for one channel to supply a differential signal into the TPA.
One could, though, run a SE signal through a 10UF cap straight to INPUT A, and run SE ground to INPUT B. Granted, the voltage across OUTPUT A and
OUTPUT B would cut in half, but the op amps would be bypassed.
You basically would have a SE output riding on a 1/2 power supply voltage DC offset.
Weird, but it should work.
Hi,
No email received from TI but I've ordered TPA3255EVM on June 11 and my order status is still "In Work at Fulfillment".
Has someneone got recently an EVM board from TI in France or Europe ?
FYI, the TPA3255EVM is available from mouser.fr.
BR,
Pascal
Considering your notice sent on June 15th, I was really lucky. I ordered on June 14th 9:14:03 PM and received the module today, delivered from Texas, US. Actually it arrived in Europe on June 20th but customs processing in my place took more time then the intercontinental delivery. At the end free of customs charge due to "evaluation/test specimen" declaration, but connected with more paperwork obviously due to latest customs wrangle between US and EU. Now I am going to read the whole thread thoroughly…;-)
I haven't registered on the site yet but someone said in another thread that the highpoweraudio code has expired.
Is there a current code that works for the discounted tpa3255evm?
Is there a current code that works for the discounted tpa3255evm?
If you mean the 'highpoweraudio' discount code, it looks like it is back in use!
I added a TP3251EVM board to my cart, applied the code and got a 50% discount (or I would have done if I'd have completed the order)
I added a TP3251EVM board to my cart, applied the code and got a 50% discount (or I would have done if I'd have completed the order)
I've been using 3255EVM with the Meanwell LRS-350-48 for a long time, but now I've finally been working on a case the power supply is 1cm too large - aaarggh 🙄 Can anyone recommend a physically smaller one with required/recommended features? If necessary I don't mind going down in wattage, I am not using a fraction of the power anyway..
If anybody wants to trade a smaller alternative for the LRS-350-48 I'm ready 🙂 I'm in Europe
If anybody wants to trade a smaller alternative for the LRS-350-48 I'm ready 🙂 I'm in Europe
Thanks xlisec, any particular model you find good value? I'd like to implement a power button, then the supply must have a certain feature (don't remember which one), is'nt that right?
I'd sure like to try a connex, but availability on ebay is quite limited. A buy directly from connexelectronic will be very expensive because of all sorts of greetings from customs.
You might want to check out this link:
A321-02 ???? ??? ?????(??) 320*100*300????-???
I am using the one in picture 4). Both 3255 and LRS-350-48 fit in nicely. The front panel is 5 mm thick brush aluminum and the chassis is stamped steel. Quality is decent and the price is good.
Hope it helps.
Regards,
Thanks, thats kind of you. However since a long time ago I have planned to reuse some old stuff and build everything into below beomasters. I've found 2 of those, need a third one for source, preamp and power amp.
EPP-300-48 is the best candidate I've found.
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I also almost feel like a vandalist removing the old electronics and giving it a new front plate, everything is so nicely made. I hope 3 next to each other will look nice ;-) Its quite easy to find in my country, most families had something more or less similar (B&O and some kind of wood) in the 60s or 70s. I guess they all knew a guy who knew a guy who worked at B&O 🙂
Well sorry for off topic
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