How many amps are we talking about? Amtherm makes NTC thermistor to solve this issue and will do FREE consulting and give away free samples. Ask them what you need and also to send it to you free. But there is a limit to what these can do. Certainly not kilowatts. Give them the problem and say "what do I do?" It works, They send me a lifetime supply of samples. https://www.ametherm.com/lp/ask-ametherm/ Ask Ametherm ametherm.com
> On Aug 6, 2024, at 5:45 PM, Thaddeus Waldner <thadw...@gmail.com> wrote: > > Some designs fill the capacitor through a small resistor, then turn on a > relay once the voltage is up. Drive operation needs to be inhibited during > the fill process. > >> On Aug 6, 2024, at 4:21 PM, Chris Albertson <albertson.ch...@gmail.com> >> wrote: >> >> The capacitor is charged when the switch is closed. A huge current will >> flow into the capacitor until it is “full”. The usual solutions are to (1) >> use a slow-blow fuse that can withstand the surge current or place a low >> value power resister in series with the AC to limit maximum current. >> Inductors can do this better than resistors. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users