I was speaking metaphorically. Of course I know that they can't know what ground is, having only two pins and not being connected to it. You guys must think I'm a complete moron.
The question is how to they SEEM to know where ground is when in reality they cannot?
I put a LOT of effort into...
Yes, every time. Just had to log in again to post this.
FYI:
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Oh wait, this might be the problem:
Accept cookies: Only from sites I visit (block cookies from third parties and advertisers)
But that works everywhere else and...
I'm constantly being logged out of this site. Earlier today I was being asked to login again after about 45 minutes inactivity. Now it seems like it's just a couple of minutes before I get the login prompt again.
Whats going on here?
I know it's not my computer because I use lots of...
Thank you all for attempting to answer my question.
Sadly I seem to be unable to communicate well enough to ask it correctly, and I'm also having trouble following and/or seeing the relevance of some of the answers presented. That's my failing I'm sure.
Thanks again.
Thanks for trying to answer my question but I fully understand that. I've been using DC blocking caps in circuits for 20 years. I'm trying to understand the physics involved not just the rule of thumb.
Thanks and :-) .
I can't get to the computer with Altium on it right now, so let me try to boil it down a little.
I don't have a formal electronics education. I was always told that there was no such thing as absolute voltage, that all voltages are only relative to some other potential.
When...
DC Blocking capacitor -- How does it know where ground is?
Hi Everyone,
A DC blocking capacitor removes any DC offset from an input signal. I've been doing this for years without thinking about it.
My question is, how does it know what the local ground potential is?
My only thought on...