Buck Converter with Current Limit

132

01:23:36

The current limiting is experimental and takes a while to engage

published 6 years ago

jason9

6 years ago

What’s the efficiency?

hurz

6 years ago

this version monitors the filtered current at the load. More interessting for a buck converter would be a current sensor which measures the coil current, to avoid saturation, and/or get out the maximum from the coil.

thebugger

6 years ago

Yeah, but it's harder that way. Also the coil is pretty small, so It could be wound with an air core to avoid saturation

hurz

6 years ago

an air coil is a nice RF transmitter and will fail all industrial EMF tests.

jason9

6 years ago

What if the coil was toroidal instead of straight? It could be wrapped around a plastic toroid “core” for support and to provide shape. If it’s toroidal, I don’t see where RF signals could look out.

hurz

6 years ago

if you can mechanical make a fully symetric coil and any magnetic field line finds its opposite magnetic force then you are correct the coil might be neutral in sum, anyway the field is infinite in its size, or at least very big and will cause RF problems.

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