So I bought a TPA3250 board to check out. I picked up a MeanWell 24V 150w switching power supply to give it juice. I was buying connectors and associated doodads and threw a EMI filter into the bag, it's this one:
https://www.amazon.com/dp/B08D3MP48W?psc=1&ref=ppx_yo2ov_dt_b_product_details
Normally I'd buy the IEC connector + filter, but this stand alone unit caught my eye. And I figured I'd put it between the wall and the SMPS. But then I thought what if I put it between the SMPS and the amp board?
So I thought I'd ask those who know more than I: Would it be beneficial to have this sort of filter between the SMPS and the switching amp?
Thanks for your thoughts...
https://www.amazon.com/dp/B08D3MP48W?psc=1&ref=ppx_yo2ov_dt_b_product_details
Normally I'd buy the IEC connector + filter, but this stand alone unit caught my eye. And I figured I'd put it between the wall and the SMPS. But then I thought what if I put it between the SMPS and the amp board?
So I thought I'd ask those who know more than I: Would it be beneficial to have this sort of filter between the SMPS and the switching amp?
- Does the filter care about the difference between DC and mains AC? (I think not?)
- Is the MeanWell likely to be dirty enough up high to benefit from a filter like this? (MW is a good brand, but nothing is perfect)
- is the 3250 board likely to care about a little HF power filtering? https://www.amazon.com/dp/B0B258YS3B?psc=1&ref=ppx_yo2ov_dt_b_product_details (maybe it makes enough of it's own noise internally, what's a little more?)
Thanks for your thoughts...
H
HAYK
New SMPS run at 500khz and most of them have output CLC filter. Just 15cm or more wire with 4700uF low ESR high frequency capacitor on arrival makes sufficient filter.
