[happyrabbit]

Still waiting for a WIMA PPS cap from mouser before I build the latest tas5611...


 I did another design based on the TPA3116D2...   Given the popularity of this chip

* Pi Filter (inductor based) for incoming power.
* 2100LL Bourns Inductors
* Different layout
* Phoenix 5.08mm Board to Wire Connectors
* 92.5mm x 75mm

[happyrabbit]

one more TPA3116 design using the Mundorf 4-Pole Cap as a filter..  I find this design intriguing.     Thinking about ordering a couple boards. 

Dwight

[happyrabbit]

TAS5611 with pi filters on all the half bridges plus a linear reg for the main supply + gates.   I will have the board next week.   ( and designed with parts that  are  available )

[randytsuch]

TAS5611 with pi filters on all the half bridges plus a linear reg for the main supply + gates.   I will have the board next week.   ( and designed with parts that  are  available )

So is this another version?

Did you build the 3116 version?

I bought a 3116 board but haven't tried it yet, and am buying a bare board from a diyaudio group buy.

Randy

[happyrabbit]

I built a 3116 / 3118 version found on page 1.   The board listed above will be my fourth.    The diyaudio 3116 group buy board looks nice.   
 


Dwight

[randytsuch]

I built a 3116 / 3118 version found on page 1.   The board listed above will be my fourth.    The diyaudio 3116 group buy board looks nice.   


Dwight

The diyaudio designer put a lot of work into it, and listened to many suggestions, so we'll see. 

So I guess you still see potential in the 5611, otherwise I don't think you'd build a 4th generation board.

Randy

[Folsom]

The 5611 does allow more decoupling, and a lot more power.

I've found the trick to these (my intuition towards them) is all the power supply. The output inductors, input caps, and PVCC (power) caps are all very important. But the differences can be dwarfed by the power coming in, and the ability of the PSU to decouple the amplifier as well. But for my personal taste all of the above must be in line.

I may have another much more interesting suggestion for you later Dwight.

The GP 3116 is nice except I'd like to see what Dwight has done with caps, or rather I'd like to have multiples as opposed to two large ones. There's a couple other things that could be very interesting, but frankly I'm going to just have to make my own boards :/

[happyrabbit]

Round 4....  100mm x 115mm.   

Dwight

[happyrabbit]

One more attempt....   

Updates : Exchanged the input coupling caps with the LL1540 Lundahl   + removed all 0603 and replaced with 0805  & 1210 (i cant solder 0603) + Name Change.

Dwight

[Folsom]

You're obsessed! 

I wish you posted/checked here more often. Recently I developed a PSU for just digital, PCB's are in the works. It would however require some changes to be compatible with your unit. Would it smoke the batteries? Ya....

Anyway, I don't think your board could get much better for battery operated. It's extremely nice. However I think if R12 and the inductors were moved a little you might be able to use two capacitors right next to the chip for the PVCC decoupling. There's one extremely tricky option with this that would actually significantly improve the performance more than just adding two, and way more than one.

[happyrabbit]

Hi Salis !

Let me know what changes you need for your power supply.    I updated the chip supply with a 2nd 1210 cap and increased the supply via's to 3 smaller instead of 1 large.     

Thanks again for the insight and kind praise 

Dwight

[Folsom]

I think the input PVCC inductors would interfere.

You can PM me if you want early details on the PSU.

[happyrabbit]

Round 4.1..... 

Added - 15,000uf 4-pole Mundorf as a main supply cap.
Added - Wire Terminal Block for the Main -/+.   Soldering the main power leads was cumbersome when changing out boards.
Removed -  (2) 1210 and replaced with a 2220 Cap for the chip supply. 
board size is 105mm x 155mm.

Salis -  do you post on the 3116 DIY FORUM Thread ?

Dwight

[Folsom]

Yes I do.

ChrisMmm built a early non-pcb design of my PSU.

[randytsuch]

Yes I do.

ChrisMmm built a early non-pcb design of my PSU.

Are you Destroyer OS over there?

BTW, I like the inclusion of the 4 pole cap, I've been using Jensen 4 poles for years.

Randy

[happyrabbit]

Latest update....  Another redesign 

Mouser dropped a critical part... 26wk lead time   UGH      Don't design with boutique parts   

Redesigned board shown below with 60W PS

Looking forward to my 1st attempt with 1:1  transformers + 4-pole caps.  Hopefully I will have this built within 2wks

Dwight

http://www.sanken-ele.co.jp/en/prod/powersp/sw/hwb/index.htm

[ElliottStudio]

Looks great Dwight!

[happyrabbit]

   the devil is in the details 

Dwight

[happyrabbit]

Back from the board house.   And Finished     Finally !@!@!