https://www.meanwell-web.com/content/files/pdfs/productPdfs/MW/SDR-960/SDR-960-Spec.pdf
Hello!
May I ask for help to optimize a MW SDR-960-48 SMPS here?
I chose this power supply to feed six TPA3255 in PBTL configuration for a cheap trick 2x3 way active setup.
Powerwise the SMPS should be more than sufficient, so no problem there.
Even though, the SDR-960 is of good reliant quality and miles ahead of most noname SMPSs, some may claim that the ripple could be better (it's <1%), not sure if this is a real problem at all or a theoretical paranoia phenomen.
However, before making the layout for the amp case, I wonder what kind of optimization could be worth to implement.
1. Additional EMI filter on the 230 AC side?
2. Additional buffer with 63V / 10-20.000 uF caps at the supply 48V side and or additional filters?
3. Any other thoughts how you would optimize it? Or just go and relax?
Thanks for your time and input in advance! 🙂
Hello!
May I ask for help to optimize a MW SDR-960-48 SMPS here?
I chose this power supply to feed six TPA3255 in PBTL configuration for a cheap trick 2x3 way active setup.
Powerwise the SMPS should be more than sufficient, so no problem there.
Even though, the SDR-960 is of good reliant quality and miles ahead of most noname SMPSs, some may claim that the ripple could be better (it's <1%), not sure if this is a real problem at all or a theoretical paranoia phenomen.
However, before making the layout for the amp case, I wonder what kind of optimization could be worth to implement.
1. Additional EMI filter on the 230 AC side?
2. Additional buffer with 63V / 10-20.000 uF caps at the supply 48V side and or additional filters?
3. Any other thoughts how you would optimize it? Or just go and relax?
Thanks for your time and input in advance! 🙂
OK, found some real test data, ripple seems to be much lower than expected, around 0.15 % / 53 mV/PP under full load. That's nice and additional filters on the output are not necessary.
With 46.8 V minimum output it's even OK when the module is equiped with 50V caps only, hence a close one.
With 46.8 V minimum output it's even OK when the module is equiped with 50V caps only, hence a close one.
