zuq
Member level 3
Hi guys
I have calculated the amount of capacitance I need at the input of a buck converter and I know how much RMS current my capacitors will need to carry.
Calculations say I need about 50mF and RMS current rating should be about 100A. Working at 24V
When I try finding a capacitor of 50mF rated at about 50V, it can only handle about 10A. To get 100A out of these caps I ll need like 100-200mF capacitance. Is that how it normally works? You find how much you need and then work out if it can handle the current ?
If I get a cap that can handle 10A at 400V doesn't mean it can do that at 24V right? Q=CV ??
I have calculated the amount of capacitance I need at the input of a buck converter and I know how much RMS current my capacitors will need to carry.
Calculations say I need about 50mF and RMS current rating should be about 100A. Working at 24V
When I try finding a capacitor of 50mF rated at about 50V, it can only handle about 10A. To get 100A out of these caps I ll need like 100-200mF capacitance. Is that how it normally works? You find how much you need and then work out if it can handle the current ?
If I get a cap that can handle 10A at 400V doesn't mean it can do that at 24V right? Q=CV ??