That looks a bit high but the multiplier may not be set precisely to 1.
I think this is basically the same as the following amp. I can't tell you if the driver components are right but you should be able to tell if they're the correct polarity (NPN/PNP) if this is indeed the same type of amp.
http://www.bcae1.com/temp/bp1200p1_sm.pdf
I think this is basically the same as the following amp. I can't tell you if the driver components are right but you should be able to tell if they're the correct polarity (NPN/PNP) if this is indeed the same type of amp.
http://www.bcae1.com/temp/bp1200p1_sm.pdf
Without the DC component, the drive signals are essentially useless.
There is a trace rotate pot somewhere on the scope. The rotation can also be skewed by a magnet.
If there is no load, the low-side drive likely has problems.
If both channels on the scope work and you have 2 probes, use it in differential mode.
There is a trace rotate pot somewhere on the scope. The rotation can also be skewed by a magnet.
If there is no load, the low-side drive likely has problems.
If both channels on the scope work and you have 2 probes, use it in differential mode.
From the frequency, I can see that it's not an input signal This is a clocked class D amp.
The high-side appears to have a problem. Load the FET location that you're probing with something like a 0.010uf capacitor and repost the drive signals.
The high-side appears to have a problem. Load the FET location that you're probing with something like a 0.010uf capacitor and repost the drive signals.
Are you saying that you haven't placed any orders lately and that you don't have any junk boards laying around?
Are you saying that the only capacitor that you could find when looking for a 0.01uf capacitor was a 22uf capacitor? Is that the closest thing you have to a 0.01uf?
Are you saying that you have 0 (zero) junk amp boards laying around?
Are you saying that you have 0 (zero) junk amp boards laying around?
I don't understand why you would offer the 22uf in place of the 0.1uf when I suggested that you use a 0.01uf. Can you explain that? Am I missing something?