Hi Guys ,
My circuit for DC converter is 2400watts delivery at 48VDC
design operation is for -30*C ambients where capacitors malfunction.
The tantallums/multilayers ceramic are unable to withstand ripples .
Suggest Active ripple filters at 1.5MHz flyback switchings to give smooth output with >40dB atten
Analog opamp design is useful with chebychev slope ..
That is right for the -30*C operation.
However , Zo being very low and fundamental freq . suppression is 1.5MHz ,the foil are inoperative .
The ceramics X5R punctures and loses value after 30mins operation.
The tantallum caps burst .as they cannot withstand large ripple contents
There are rather different form factors with different inductance values. But of course, one need to know the filter parameters to determine if it's feasible
The ceramics X5R punctures and loses value after 30mins operation.