Dear friends hello,
I know we have (me included) discussed this issue numerous times. If you google it you will find millions answers, but I need to ask again.
I have some SMPSs from HP inkjet printers which I would like to use them with regulators (LDOs preferably) and make DC supplies for my projects with ICs, op amps etc.
The output as you can see is noisy. I used a Π filter (it was proposed in this forum) to clean it. You can see the result.
The question is if I can further clean it, mainly the spikes and how. The values of the components are listed, 220μF electr. capacitors and 0,56mF ferrite bead.
Also because the bead is bulky, can I replace it with a coil of the same value? Will have the same result?
And finally what do you propose as an LDO? I think there is one that regulates the current too. I do not need a lot of current for my ic projects. Definitely less than one Amp
Thanks a lot for your input
Doros
I know we have (me included) discussed this issue numerous times. If you google it you will find millions answers, but I need to ask again.
I have some SMPSs from HP inkjet printers which I would like to use them with regulators (LDOs preferably) and make DC supplies for my projects with ICs, op amps etc.
The output as you can see is noisy. I used a Π filter (it was proposed in this forum) to clean it. You can see the result.
The question is if I can further clean it, mainly the spikes and how. The values of the components are listed, 220μF electr. capacitors and 0,56mF ferrite bead.
Also because the bead is bulky, can I replace it with a coil of the same value? Will have the same result?
And finally what do you propose as an LDO? I think there is one that regulates the current too. I do not need a lot of current for my ic projects. Definitely less than one Amp
Thanks a lot for your input
Doros
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