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12:36 AM
question for you folks: can I use a garden-variety LCR meter to measure the Zi of a battery at a given frequency? (say, 1kHz) and if so, what would the procedure for doing that look like?
 
 
2 hours later…
2:58 AM
0
Q: Need sensor to sound remote alarm when dog crosses a line

Mike WatersWe have a dog (rescued from a puppy mill) that goes to the back door when she needs to go out, but she doesn't make any noise. After a couple of minutes, she does her business right by the back door. :-( What I think that we need is some kind of sensor that detects her presence by the door and r...

 
respected Engineers and Co. please help me find my mistakes.
0
Q: Is my Nodal Analysis correct?

TeilZeitGott hello everyone, this Question deals with opamp having A(gain)< infinity, Rin=infinity, and Rout=0. I established two node equations; At the top junction and between R and Rx. My node equations: So my question is: Are my equations correct since I am not getting correct Vout/Vs from these two...

 
3:17 AM
Help, I need somebody
Help, not just anybody
Help, you know I need someone, help!!!!!!:-)
 
3:43 AM
i solved it . was just some algebraic manipulations
 
yeah, "It's Just Algebra" :)
 
4:10 AM
But would you help get me out of this clusterf**k) ?electronics.stackexchange.com/questions/449477/…
 
 
4 hours later…
7:57 AM
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Q: Smith trigger Hysteresis

TeilZeitGott Given the Schmitt Trigger circuit, I have to find V2/V1 as well as the magnitude of hysteresis. I don't need a full solution. Any hints to approach this problem would suffice. sofar, I know the left amp is a schmitt trigger and the right one is unity gain. Thank You.

have a look at this problem please
 
8:46 AM
@VoltageSpike Like the name and the logo. Fits perfectly.
 
 
3 hours later…
11:56 AM
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Q: Op-amp circuit hysteresis calculation

TeilZeitGott Given this circuit, I have to find \$\frac{V_2}{V_1}\$ as well as the magnitude of hysteresis. I don't need a full solution. Any hints to approach this problem would suffice. So far, I know the left op-amp is a Schmitt trigger and the right one has unity gain.

hint is all i am asking for
 
 
2 hours later…
1:27 PM
why are peps so salty. :-)
 
 
1 hour later…
2:29 PM
@Shalvenay Depends on what you mean by "garden variety" and whether you get complex network (R+C) measurement or you have to hard-wire it. I think the first thing I would try is adding in a capacitor where Zc was << Zbat
@TeilZeitGott Because you're asking people to do your homework.
 
3:20 PM
i aint pro like yall
:-)
fake it till u make it
 
3:33 PM
@MikeWaters You could look into kids spy toys, but it just seems like you don't want to train the dog not to pee in the house.
 
3:57 PM
Spy Gear Micro Agent Motion Alarm Toy
20 dolla
https://www.amazon.com/Spy-Net-Motion-Activated-Micro/dp/B003AUOBTI
$7
 
4:17 PM
Treat it like an ideal op-amp. Don't overthink it. — Adam Uraynar 22 mins ago
edited with my attempts
 
 
4 hours later…
8:11 PM
Hi
 

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