AMP4 Output Relay Problems

[Endeavour-]

Howdy,

I've been working on an AMP 4 and finally got it set up, but my output relay keeps when input1 reaches a certain volume level; whenever the speaker needs a particularly high current level for a given note the relay cuts the signal out. I am not listening to the speakers all that loudly, and this ONLY happens on Output1; Output 2 works just fine.

I'm not sure what to do at this point? I know the Tripath 2050 has overcurrent, over/under-voltage, and over-temperature protection - it's not over-temperature since it cuts out before the chip even has a chance to get hot. I've checked my 9V and 5V supplies and both are fine; I'm running the amp using a 22V transformer, and I do have a wire connected for R100.

Any help is very much appreciated, thanks!

-Enrique

[Niiico]

Hi,

If you use a 22V transformer, you get around 30V rail. The relays have a coil made for 24V, so you should use a resistor for R100.

That's all I can say for now...

Niiico

[Endeavour-]

Niiico,

I originally had the amp running with the resistor placed in R100, but put in a wire when the problem arose; it didn't change operation at all, unfortunately, only Channel 2 works properly regardless of R100.

Thanks for your help, I really appreciate it! :)

-Enrique