Designing Regulated 100V 30A DC Power Supply for Low Field MRI Coil from 220V AC

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#1 21685077 16 Oct 2020 08:50

Ivan Muhumuza Ivan Muhumuza

Anonymous

Post #1
21685077 16 Oct 2020 08:50

Hi everyone, How can i design a regulated 100V DC 30A Power supply that will power a constant Load (Low field MRI coil). Input power is 220V AC. I have so far made a transformer. What components do I need for rectification, smoothing and current regulation. Could some experts share proven circuits designs that i can rebuild.

Cheers!
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#2 21685078 22 Oct 2020 09:07

Giovanni Di Maria Giovanni Di Maria

Anonymous

Post #2
21685078 22 Oct 2020 09:07

Any power supply device that exceeds 5 Amps is critical.
Since you have the transformer you can use the classic diode bridge, also using many diodes in series to increase higher current. Then the usual smoothing capacitor.
However for that power it is always better to build a Boost Switching Converter
Giovanni
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