Jump to content

Capacitors - How they work


mboxler

Recommended Posts

If you are like me, you understand what capacitors are doing in a crossover, but may not know how they are doing it.  I attached two videos that helped me.

 

The first describes the capacitor itself.  It helped me understand how an open circuit (the capacitor) can allow current to flow.

 

The second places a capacitor in an AC circuit.  It describes inductor as well, but that's another topic.  If you replace the resistor with a speaker driver, or taps 0 - 5 in a heritage crossover, you will see why the current flows through them 90 degrees before the voltage across the capacitor changes.  You will also see why more current flows at higher frequencies.

 

I realize this is 20 minutes of your life that you will never get back, but I hope you find them educational.

 

Mike

 

https://www.youtube.com/watch?v=f_MZNsEqyQw

 

https://www.youtube.com/watch?v=zO7RZZW0wSQ&list=PLkyBCj4JhHt-4PnnwpbG-ZKV_EjX03DX8&index=15

 

 

 

Link to comment
Share on other sites

7 hours ago, Alexander said:

 

ELI the ICE man was what my instructor told us

 

Voltage leads current in an indicator (L)

Current leads voltage in a capacitor (C)

 

I prefer the unconventional use of "V" for voltage in the scheme of using the word "CIVIL" to remember the relationship.

Link to comment
Share on other sites

  • 1 month later...

Won't  approve your post unless you remove the link. Can't see what it point to and we don't approve first posts with links unless we can read clearly what they point to. To  dangerous to follow them. Once your first post is approved, review the Terms of Service and then repost the link if you are certain it meets the TOS and you are in no way connected with it.

 

Regards,

Dave

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...