Hello, my question is a fairly simple one yet one I am fairly at odds about. I want to build a device that involves changing current rapidy, from open, to dead short across a coil, for a brief instant in time. The simplest way I can think of of storing the energy to put across here is in a capacitor. Which leads me to my question.
From what i have personally seen, whenever a high voltage is shorted across a capacitor, lets say 200VDC, the capacitor has always ended destroyed after, and my device would be building and then shorting this many times. From what I can imagine some energy would be dissapated building the magenetic field in the coil, but I cannot imagine that limiting the current.
So my question is, am I just being shortsighted, would the capacitor not suffer much damage from this? Is the current not actually going to be the thing that actually damage this, perhaps the capacitor would charge in reverse and discharge again, could that be what actually destroys them?
Sorry for this being kind of long winded, or if its a stupid question, Id just like to know if capacitors have any type of life expectancy in a situation like this, or if i should try to go an alternate route.
From what i have personally seen, whenever a high voltage is shorted across a capacitor, lets say 200VDC, the capacitor has always ended destroyed after, and my device would be building and then shorting this many times. From what I can imagine some energy would be dissapated building the magenetic field in the coil, but I cannot imagine that limiting the current.
So my question is, am I just being shortsighted, would the capacitor not suffer much damage from this? Is the current not actually going to be the thing that actually damage this, perhaps the capacitor would charge in reverse and discharge again, could that be what actually destroys them?
Sorry for this being kind of long winded, or if its a stupid question, Id just like to know if capacitors have any type of life expectancy in a situation like this, or if i should try to go an alternate route.