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Topic: Learning capacitors (Read 1 time) previous topic - next topic

Riber

Sorry if my explanation was vague.
As mentioned, i was not sure the symbols was correct.

I'm trying to step on step back, and instead of capacitors getting used to the transistor before making the above circuit (ButtonA = Charge batteries, ButtonB = Release charge to LED)

I tried drawing another circuit:
https://www.circuitlab.com/circuit/j6h9sh/transistor/

The idea behind the circuit is one button and two LED's. When button is unpressed the red led lights, once the button is pressed the red led turns off and the green one turns on.
Transistors are used to turn on/off the two LED's.

This circuit is very untested, but made with inspiration from http://www.youtube.com/watch?v=gp1LK6nfzdQ
I'll have to order some more components before i can tinker with this setup.




Grumpy_Mike

Quote
I'm trying to step on step back, and instead of capacitors getting used to the transistor before making the above circuit (ButtonA = Charge batteries, ButtonB = Release charge to LED)

Sorry I have absolutely no idea what that means.

The video seems to be nothing to do with what you are asking.

rtty21

I would recommend Collin Cunningham's capacitor video series he made for Make Magazine:
http://www.youtube.com/watch?v=ZYH9dGl4gUE
Check out ALL THE COLLIN VIDEOS! Seriously, he is very knowledgeable on all things electronic.
He has a lot of videos on simple electronic components like resistors, transistors, LEDs, and even project videos like 8x8 LED Matrices, Color Organs, and many Arduino projects.

Also, check out AfroTechMods's channel.
He has more advanced videos, but he explains things extremely well.
AfroTechMods Transistor Video:
http://www.youtube.com/watch?v=Te5YYVZiOKs
His Channel:
http://www.youtube.com/user/Afrotechmods

The specific task you are trying to accomplish is more difficult than I initially thought.
I spent about 15 minutes trying to figure it out by drawing up a schematic; no dice.
However, once I tried putting together some components on a breadboard, it clicked.
I then drew a schematic using everything I had on my breadboard. Here is it:
https://www.circuitlab.com/circuit/3mt4q6/two-button-solution/


I like to avoid using the diodes and the MOSFETs when dealing with simple tasks such as this one, but I couldn't see how I would do it without them.

Kind regards,

Ryan
:-D
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Click the link to see stuff that I've built:
[url]instructables.com/member/rtty21[/ur

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