HI.
MP8009 output is too noisy;
Use the MP8009 and POE51Q-24 transformer to produce a 24V output
Output ripple is over 600mv.
Look at the circuit.
The noise is too loud, but I don’t know the cause.
It is a waveform that measures the part of the d7 cathode.
Please help me.
I’ll be waiting for your reply.
Best regards,
won.
Output ripple is over 600mv. not 600mA
You may not be measuring it correctly, ground leads on oscilliscopes can introduce a lot of apparent noise. Search for ap notes by Jim Williams on how to measure power supply noise.
Basically you have to remove the ground clip and the probe sheath and measure across an output cap with a twist of wire to catch the ground .
I measured the waveform that way, but there was a problem.
The noise is so loud that I’m in trouble.
Doesn’t it look like a circuit problem?
Please help me.
I’ll be waiting for your reply.
Best regards,
won.
