Amp class d 2000 wrms ?

[federicoch]

Hi! i'm new into this. i was seaching for an amp class d, i found one in Clase d 2000 watts rms

I think is extremely easy to build, but anybody try it ? i'm not sure if it would work 😕

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

https://drive.google.com/folderview?id=0B6y8DT_InVN3LW9jVl9nSU9HV0k&usp=sharing"]Here are all the pics


Sorry for my english😱

 

[gmarsh]

PCB doesn't match the schematic, at least on the feedback components. Don't see any issues with the implementation otherwise.

I'd make a few changes:

- 2 layer PCB with a good ground plane.
- Maybe bring back two different switching node traces from the output - one for feedback, one for the high side gate drive. Or a big fat stripe of the switching node. Right now high side gate drive switching currents may add crap to the feedback loop, though it may be insignificant.
- I'd use a ferrite inductor instead of a toroid, due to the inductance droop with increasing current that toroids tend to have. Look for a nice flat shelf in the inductance versus current curve. Coilcraft AGP2923/VER2923 should be suitable.