Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 21,846
yeah, and you wouldn't believe how big an inductor is necessary to hold off inrush current.
An inductor, saturable to get it out of the way later, was my first thought ... but then I thought better of it.
I figure 0.1F capacitor charged to 50V, about 500 pieces of this inductor could be connected series/parallel to slow precharge to about 0.1 second, 50A. (would also have deleterious effect on step response demanding 100's of amps, something you alluded to.)
Resistor and relay, or transistor, heatsink, voltage ramp. So easy to accomplish (as long as inverter doesn't start sucking current before you're done.)
An inductor, saturable to get it out of the way later, was my first thought ... but then I thought better of it.
I figure 0.1F capacitor charged to 50V, about 500 pieces of this inductor could be connected series/parallel to slow precharge to about 0.1 second, 50A. (would also have deleterious effect on step response demanding 100's of amps, something you alluded to.)
Resistor and relay, or transistor, heatsink, voltage ramp. So easy to accomplish (as long as inverter doesn't start sucking current before you're done.)