Having a hard time understanding a couple circuits I ran across. Basically, I have a 555 timer's output driving a transistor. In between that there is a 100uf capacitor. I am still new, but...I thought an electrolytic is to only be used as storage basically. Not in series with something? If the 555 signal goes into the cap. The cap would fill and then never pass the (Electrons/Voltage) to the transistor. Wouldn't you want this cap to be omitted? That cap would have to be an ac style (ceramic) would it not? My thought is that one is making sure the transistor does not "stick" on by using that cap. My confusion is that the cap fills then can only discharge back out the way it came in. Can't come out the negative side to the Capacitor? What the heck am I missing I Google the hell out of this I don't get it. http://lifters.online.fr/lifters/labhvps/index.htm I know that a capacitor acts like a short at higher frequencies due to the reactance being less. Looking for the more in depth answer. The electrons move into the cap. The 555 goes low. The caps negative side would never see more electrons. Therefore they would never go into the transistor? What the heck am I not getting?
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