Questions about choke and capacitors on bldc card

[jmx66]

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