My TPA3122D2N BTL proto

[Malquis]

thanks Anonymous; really nice electronico maybe I'll try that schematic later I think mine isn't working because of the difference that I have in the + and - rails one side measures -4.5V and the plus is +5.4 V that's because of the bad quality resistors that I have used in the virtual grounding circuit the same happened to me with this 5ch adder + switched capacitor filter

 

[electroconico]

thanks Anonymous; really nice electronico maybe I'll try that schematic later I think mine isn't working because of the difference that I have in the + and - rails one side measures -4.5V and the plus is +5.4 V that's because of the bad quality resistors that I have used in the virtual grounding circuit the same happened to me with this 5ch adder + switched capacitor filter

Try to use a buffer ,also you could change the resistor value to >10k.

 

[electroconico]

This is my amp , tpa3122 stereo mode.

 

[theAnonymous1]

Nice boards!

I have to ask though, why go through the trouble of getting professional boards done for this IC when it has superior bigger brothers?

 

[electroconico]

Nice boards!

I have to ask though, why go through the trouble of getting professional boards done for this IC when it has superior bigger brothers?

Hi

That was because I own some ics and its easy to get them.
Im working with other amps.

regards!

 

[electroconico]

This is the BTL mode pcb

pics atacched

 

[Malquis]

Hi there ! Big love for that IC is what you are feeling huh lol ! you've dedicated some time one could say how does that BTL sound ? you could fusion that stereo board with the BTL one and make some nice 2.1 amps and sell them as kits lots of people like building with 2 tweets 2 mids and just one sub altough I don't think that little ic can push 40 watts you should measure that on a scope nice work ! cheers !!