![]() ![]() ![]() I like your use of the phrase "alternating polarities". Thanks! Your words are much clearer than mine. It doesn't matter if it's the same electrons making the complete journey or not, the current flow is still the same. The current loop is still source (amplifier) through inductor and since the capacitor is in circuit creates a current flow through it back to source. So going back to the cap in the woofer network you still view the capacitor as an impedance which mathematically works out to the same amount of current flow within the current loop. The capacitor still closes an alternating current loop when in circuit to flow in the same manner. As I mentioned we don't really care if it's a continuous water flow of the same water in the loop making the complete trip from source through the loop and back to source. For all intensive purposes the capacitor allows AC current to flow within the circuit, there is a current loop through the capacitor, force of electrons still move through the storage of charge and repulsion between plates. Although the electrons do not pass from plate to plate there is still a reaction of same charge types repelling and creating force. As the polarity alternates the flow happens in reverse. As electrons flow in one direction into one plate they repel electrons from the other plate forcing them to move in the same direction and out of the second plate. But one needs to view the capacitor as a whole mechanism and not just view the movement of electrons from one plate to the other as if they were touching. ![]() When you have alternating current the electrons do not flow through from plate to plate inside the capacitor, this is what is confusing. This is actually a great discussion for circuit theory and capacitors. We still view a current passing through the capacitor but not taken so literal as with a conductor or resistor where the same electrons move the complete 'distance' if you will, but that's not important, what's important is there is still a flow of current where the amplifier is providing the work. This is why we can model the capacitor as an impedance the same way we use a resistor. Electrons still move and current still flows and the electrons are from the same source. You cannot think of it in terms of water, and the water cannot pass through, which for the analogy is correct but we don't care whether the same electrons make it though or not, there is still an electron flow of new electrons from the second plate being repelled by the force. If you take one plate of the capacitor and electrons flow into it, the only reason they can is because the other plate's electrons are being repelled and pushed out, this allows the electrons to stay on the first plate. This exact mechanism doesn't happen in a capacitor, you have this part understood. Picture the electrons flowing through a conductor or resistor and back to the source. ![]() You cannot think of it in the same terms as a the way a resistor passes current which is different and is in phase. I guess I wouldn't call this blocking DC. The current flow will decrease until the voltage across the capacitor is 12 volts, then will stop. The instant the battery is connected, current will flow through the circuit, including the driver. This current flow is instantaneous, and is 90° ahead of the voltage change.Īn example that I would be afraid to try would be a capacitor is series with a driver. Since a capacitor is an open circuit, current can only flow from one plate to the other via the circuit itself.Ĭurrent only flows when there is a change in voltage, and the quicker the voltage change, the greater the current flow. Agree, but as I understand it no current can pass through a capacitor.Īs I stated above, no current can pass through a capacitor. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |