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Capacitors

Started by dbzprogrammer 125 replies 11.9k views
Original Post
dbzprogrammer
dbzprogrammer
This isn't really a gamedev question, so sorry first off. But I'm creating some schematics because I've wanted to get around to making hardware for some time, and now am. Say I have a battery, two wires, a capacitor, and a resistor. What I'm wondering is can I just connect the capacitor to the two wires, and then to the battery, or will that restrict current flow? Thanks in advance!
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
SiCrane
SiCrane
Moved to the Lounge.
Xiachunyi
Xiachunyi
The capacitor will simply "charge up" and the current flow will stop once saturation is reached (assuming no current leak).

If you want current to continue to flow through, your supply will have to be an AC signal instead of a DC.
dbzprogrammer
dbzprogrammer
So it won't pour out? How do I make it pour?

[Edited by - dbzprogrammer on November 30, 2005 9:26:53 PM]
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
Sneftel
Sneftel
What do you mean "poor out"? What do you want to pour out, and what will be doing the pouring? What are you trying to accomplish?
AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by Sneftel
What do you mean "poor out"? What do you want to pour out, and what will be doing the pouring? What are you trying to accomplish?


I know the answer. I had the EXACT same problem in my grade 9 electronics class. And by that I mean this is probably somebody asking for homework help.
With love, AnonymousPosterChild
dbzprogrammer
dbzprogrammer
Quote:
Original post by AnonymousPosterChild
Quote:
Original post by Sneftel
What do you mean "poor out"? What do you want to pour out, and what will be doing the pouring? What are you trying to accomplish?


I know the answer. I had the EXACT same problem in my grade 9 electronics class. And by that I mean this is probably somebody asking for homework help.


Ok, I'll be honest. It's not for homework. It's because I'm trying to start basic electronics on my own. I'm currently looking at EMP design, and how that'd all work. So could I get a nice answer? Or am I going to "cheat" on a homework assignment for a class I don't take?

Snetfel, do you know what a capacitor is?

EDIT: JESUS CHRIST MY RATING WENT DOWN 50!?!?!?!?!
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by dbzprogrammer
Quote:
Original post by AnonymousPosterChild
Quote:
Original post by Sneftel
What do you mean "poor out"? What do you want to pour out, and what will be doing the pouring? What are you trying to accomplish?


I know the answer. I had the EXACT same problem in my grade 9 electronics class. And by that I mean this is probably somebody asking for homework help.


Ok, I'll be honest. It's not for homework. It's because I'm trying to start basic electronics on my own. I'm currently looking at EMP design, and how that'd all work. So could I get a nice answer? Or am I going to "cheat" on a homework assignment for a class I don't take?

Snetfel, do you know what a capacitor is?


If you're just beginning, you wouldnt be making an EMP at all. You'd be pissing around with 555 timers and logic gates.
With love, AnonymousPosterChild
dbzprogrammer
dbzprogrammer
I'm beginning because I want to make an EMP. I saw this one guy like deformed a coke can with it. That's awesome. Link: http://www.altair.org/pix/crusher1_s.gif Think what you want, but I'm not taking a class. Also, my school website is www.nchs.cc Go there and look at the circulum, you won't find a electronics class. If there was one, I'd be taking it next year.
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
Thermodynamics
Thermodynamics
There are two ways to think of capacitors. One is to think of a mini battery that starts of with no power.

I think a better description is to think of it like an electric spring. You can push charge against it all you like, but as soon as you let go, the spring releases.
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AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by dbzprogrammer
I'm beginning because I want to make an EMP. I saw this one guy like deformed a coke can with it. That's awesome. Link: http://www.altair.org/pix/crusher1_s.gif Think what you want, but I'm not taking a class.


You're going to GET. YOUR. ASS. KILLED.

I work with high voltage capacitors EVERY DAY, and they arent something some little punk without any proper training should even be allowed to behold the glory of, let alone build with. I went to MANY classes, took NUMEROUS safety courses, and always work with proper equipment.

You're playing with the big boys, and you barely have any idea about basic electronics? Good job.
With love, AnonymousPosterChild
dbzprogrammer
dbzprogrammer
Quote:
Original post by Thermodynamics
There are two ways to think of capacitors. One is to think of a mini battery that starts of with no power.

I think a better description is to think of it like an electric spring. You can push charge against it all you like, but as soon as you let go, the spring releases.


Hurray an answer! So what happens when I'm putting power into it and it hits the limit, but I don't stop the power flow? Or would I because the thing fills up, therefore the electrons don't run and therefore the spring is "released" and all the electrons flow to the positive end of the battery. Right now I'm planning to work on a SMALL voltage system. Something like 4 Volts maybe. I've done little electromagnets before, and so I'm trying to figure out how to pulse the thing now. I'm not taking TV capacitors and super charging them.

EDIT: ZOMG MY RATING. Everyone hates me! =D
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by dbzprogrammer
EDIT: ZOMG MY RATING. Everyone hates me! =D


No, everyone thinks you're an idiot whos going to get his fool ass killed. I've already started writing a note to your parents.

Quote:

Dear Mr/Mrs/Ms/St/Dr/President dbzprogrammer's mom, dad, or guardian,

Recently your son got his fool ass killed by playing with things far beyond his understanding of both mechanically and safe...tilly. I am writing this letter to tell you that I did try and warn him.

Love AnonymousPosterChild

PS. Pix plz
PPS. Theres always the singleplayer campaign
With love, AnonymousPosterChild
DukeAtreides076
DukeAtreides076
EMP? With no nuke how are you planning to get enough high energy photons to cause an EMP effect with Compton scattering?

Are you trying to make a flux compression generator? You'll need some kind of explosive to power it. And some a timing mechanism to supply the starting current. And FCGs can only be used once.

You'll sure have a lot of fun winding some wire around a your coke can or whatever, blowing it up, and seeing little or no noticable effect, supposing it actually works.
AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by DukeAtreides076
Are you trying to make a flux compression generator? You'll need some kind of explosive to power it. And some a timing mechanism to supply the starting current. And FCGs can only be used once.


I've built a few of these. The results were less than awesome.
With love, AnonymousPosterChild
dbzprogrammer
dbzprogrammer
Less than awesome? That's no good. Give me something better to do that still does cool stuff to coke cans though... Or badgers...
We should do this the Microsoft way: "WAHOOOO!!! IT COMPILES! SHIP IT!"
AnonymousPosterChild
AnonymousPosterChild
Quote:
Original post by dbzprogrammer
Less than awesome? That's no good. Give me something better to do that still does cool stuff to coke cans though... Or badgers...


HERF

Google it
With love, AnonymousPosterChild
Thermodynamics
Thermodynamics
Quote:
Original post by dbzprogrammer
...So what happens when I'm putting power into it and it hits the limit, but I don't stop the power flow? Or would I because the thing fills up, therefore the electrons don't run and therefore the spring is "released" and all the electrons flow to the positive end of the battery. ...


The same thing that happens with a spring. If you had a tension spring and you hung a coat hanger from it, the spring would stretch a little. No matter how long you left that hanger on there, the spring will only stretch so much. In order to stretch it futher you need to add more force as in weight (voltage). If you put the coat on that hanger the added weight would pull the spring down even more. Now imagine that your Mom got in her coat. Now the spring is stretched beyond its limit and is permanently deformed. The same thing can happen to your capacitor. Put too much voltage on it and it will arc inside and be ruined.

I will add my caution to the others. Don't mess with this until you know what you are doing.

If you want to have some fun though I do have a neat little experiment.
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Xiachunyi
Xiachunyi
What you are trying to do is very dangerous from looking at your provided link.

Theoretically, if I spelled that right, you are utilizing a voltage multiplier, rectifying the current, and charging the bank of capacitors.

By completing the circuit via the switch to the inductor coil, the rush or current into the inductor will create a counter-voltage (Reactance - Transients).

The amount of energy dissipated from those diodes, not to mention the counter-voltage, is enough to stay away from such a circuit.

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