Looking for Iron Powder Core for input filter choke

[Rogelio]

Can anybody suggest a Iron Powder Core to use as input filter choke between car 12V battery and center tap of push pull transformer dc to dc inverter with 22khz and maximum of 8A current flow. Preferably available to Farnell and RS.

I can't find NEOSID 17-732-22 ring core. a 14.8X8X6.35mm.
Grade=2003
Saturation Flux Density=15,000 gauss
Max Freq.=500khz.

Maybe you can recommend iron core that you able to buy in Farnell and RS. I don't know how to choose in their product list.

Thanks

 

[DjLeco]

I used couple years ago, 2-3 pieces of yellow/white iron powder toroid core for couple hundred of watts.
Those are suitable until 40Khz, at higher freq they will heat alot.

You can find it on any PC power supply, is the one used in secondary windings after rectifier diodes.

Try to use 2 of them like I do for red ones in the picture.

 

[Rogelio]

Thanks for the info. I already bought 20 pcs of T60-26 Iron Powder Core from Amazon.