Questions about choke and capacitors on bldc card

Hi all,

One more query about my bldc card, and more precisely about chokes and capacitors.

First, of course, thanks to previous advices from forum members ;-)

On schematics joined, i'd like to know if i really need capacitors .

If yes, voltage rating must be 1,5 x 340 , about 500 V . Right or wrong?

100 µF or ?

EPCOS|B43501A6107M000|CAPACITOR, SNAP-IN, 500V, 100UF | Farnell United Kingdom

I found them with switching power-supplies, for " storage " and to supply constant voltage to load, if i can summarize.

Also on some drafts related to overvoltage protection, but others no ....

I wanted to use Wurth component 7447019 5 A 680µF , but not available from my usual electronic shop:sad:.

So replaced with:

- EPCOS 0,7mA 6A 1644776

EPCOS|B82615B2602M001|CHOKE, RING CORE, 0.7MH, 6A | Farnell United Kingdom

Other choices, but less capacitance:

- Murata Bobin inductor 300µF 5A 1430450C

- Wurth electronik 100 µF 5A 7447070

- Wurth electronik 150 µF 5A 7447076




What do you think of schematics? Is it a right or wrong idea?



Thanks a lot.

jm