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Altera_Forum's avatar
Altera_Forum
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13 years ago

Power schematic for Cyclone IV

Hi, i am designing a very simple development board and need some tips on Cyclone IV power design. The board will be used for learning purposes with simpled designes. It is not aimed for very fast dei...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

This design looks good to me.

If you want to simulate your filter, then Linear Technology LTspice is a nice tool.

TDK have SPICE models for their capacitors and ferrite beads on their web site.

Ferrite bead + capacitor PI filters can have peaking in their response. The peaking can be damped with a series resistor, but then that resistor causes a voltage drop, so is not appropriate for high-current supplies.

Cheers,

Dave