|
|
|
|
|
|
by amluto
2056 days ago
|
|
|
I would suspect imagine that putting a power supply like this in the same enclosure could introduce unpleasant noise. There will be a big current spike every half cycle when the rectifier starts conducting. The power factor will be awful, and I can easily imagine 120 Hz and its harmonics coupling somewhere you don’t want them. Not to mention that you might be able to hear the power supply buzzing. Get a nice AC-DC converter brick and call it a day. If you want to be fancy, stick a linear regulator on the output. |
|
|
The ones that I've seen don't put out their claimed current, lose regulation badly at high load, and put a lot of hash on the DC rails. Seriously ugly. Opening them up, the circuit design often looks like it comes from the 1980s. Physical design usually doesn't meet standards for HV separation and creepage.
Rather than a linear regulator, lots of filtering (a few 100nF ceramics and a few millifarads of smoothing) would help. And a high-powered TVS or two for when the power brick dies, as it will.