Hi!
I started to read about oscillation and found that electronic clocks are working on oscillation.
So simply oscillation is made with an inductor and a capacitor when they "charge" and "discharge" each other. So I had an idea to make "a timer" which would make a LED turn on every second.
I calculated parameters of the coil needed and used a 22 gauge wire to make a 1cm x 1.3cm x 10 turns coil and wired up a 47nF capacitor @ 16V in parallel with a 3V battery. The LED didn't blink.
I think it was because of I left the capacitor charging, so that would mean that I nead to charge the capacitor and disconnect the power source, but can't this be done with a circuit which would tell if the capacitor is "full"?
P.S. does farads(F) change if I use lower voltage? If one book is correct then no, because 1 farad is such a value that would mean by changing 1 Amp of current would allow to store 1 Volt (may sound weird because it's translated), but that book has many mistakes :/
Also, a diode is a device that allows only current flow in one dirrection, so if I add a diode in AC (I won't do that) that would mean that circuit is cut off when there is a negative flow, like -10V?
I started to read about oscillation and found that electronic clocks are working on oscillation.
So simply oscillation is made with an inductor and a capacitor when they "charge" and "discharge" each other. So I had an idea to make "a timer" which would make a LED turn on every second.
I calculated parameters of the coil needed and used a 22 gauge wire to make a 1cm x 1.3cm x 10 turns coil and wired up a 47nF capacitor @ 16V in parallel with a 3V battery. The LED didn't blink.
I think it was because of I left the capacitor charging, so that would mean that I nead to charge the capacitor and disconnect the power source, but can't this be done with a circuit which would tell if the capacitor is "full"?
P.S. does farads(F) change if I use lower voltage? If one book is correct then no, because 1 farad is such a value that would mean by changing 1 Amp of current would allow to store 1 Volt (may sound weird because it's translated), but that book has many mistakes :/
Also, a diode is a device that allows only current flow in one dirrection, so if I add a diode in AC (I won't do that) that would mean that circuit is cut off when there is a negative flow, like -10V?