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1.2k posts
 
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Meta How to request a mass-change in capitalization for tags?

Apart from correcting capitalization, which is a valid change, I think you are at the same time doing a lot of subjective changes to certain tags and it can get very intrusive on the site. I don't ...

posted 9mo ago by Lundin‭

Answer
33%
+1 −4
Q&A Floating circuitry and diodes

In both cases, is the "X" point floating when there is no 12V applied ?

1 answer  ·  posted 11mo ago by kellogs‭  ·  edited 9mo ago by Lorenzo Donati‭

33%
+0 −2
Q&A Beginners Guide To Power Circuit [closed]

I'm Interested In Power Circuit. What Courses/Guidelines To I Need To Properly and Effectively Under Power Circuits??

0 answers  ·  posted 6mo ago by Kalel‭  ·  last activity 15d ago by Nick Alexeev‭

33%
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Q&A Implementing local ground theory on PCB power distribution [closed]

I've tryed to implement a local ground concept told by Olin Latrop here : He have told: (What I've perceived)You should not connect every gnd point instantly to gnd plane, since it can inject HF ...

0 answers  ·  posted 3mo ago by mohammadsdtmnd‭  ·  closed 3mo ago by Olin Lathrop‭

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Q&A LNA layout consideration 1-1000MHz

Mini-circuits LNA PHA-LN13+ has suggested: Eval board Layout Eval Gerber The image took from the Gerber file (3rd ref.) (Though all 3-reference mentioned containing it): There I have som...

0 answers  ·  posted 1mo ago by mohammadsdtmnd‭  ·  edited 1mo ago by mohammadsdtmnd‭

Question RF pcb-layout layout
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Q&A Is it possible for one transistor to switch between two loads?

The output collector-emitter part of a transistor can be thought of as a 2-terminal SPST switch controlled by the input base-emitter voltage or base current. So this transistor switch can control o...

3 answers  ·  posted 3y ago by Circuit fantasist‭  ·  last activity 3y ago by Circuit fantasist‭

30%
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Q&A Is this AD8307 fake?

I am trying to test a AD8307. Here are my connections: (pins not shown are left unconnected, and also pin 8). I get a quiescent output voltage at pin 4 of about 850 mV with respect to ground, w...

1 answer  ·  posted 3y ago by coquelicot‭  ·  edited 3y ago by coquelicot‭

Question IC amplifier
28%
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Q&A Is it safe to cover a floor lamp, with an Aluminum metal pie plate? [closed]

Please see the image below. I'm trying to convert my IKEA NYFORS floor lamp into a reading light, by covering the top with an Aluminium pie plate. Will this be a fire or electrical hazard? Does an...

0 answers  ·  posted 3y ago by TextKit‭  ·  closed 3y ago by Olin Lathrop‭

Question safety
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Q&A Design high -pass filter with 2 points of the bode plot

Im designing a high-pass filter which has a gain of -8dB at half of the roll-off frequency and I am stuck ,I dont know how to continue the design. In the bode plot of that filter we have 2 points:...

3 answers  ·  posted 2y ago by MissMulan‭  ·  last activity 1y ago by LvW‭

28%
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Q&A Electromagnetic induction

If I connect a battery to an LC tank and then to an antenna and then on the other side at a distance x, I connect an antenna to another LC tank and this to a diode and this to an LED, Do a I have a...

1 answer  ·  posted 2y ago by Voyager ll universe probe‭  ·  edited 9mo ago by Lorenzo Donati‭

28%
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Q&A Series RLC circuit

It all depends on the values of the components:If the system will very slowly decay until the energy of the system reaches 0. If the system undergoes something which will look like a part of...

posted 2y ago by MissMulan‭  ·  edited 2y ago by MissMulan‭

Answer
28%
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Q&A Coupling of inductors

When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well. For this circuit: Now current entering one coil marke...

posted 2y ago by MissMulan‭  ·  edited 2y ago by Elliot Alderson‭

Answer
28%
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Q&A Find feedback of circuit

I have this circuit: I think that R3 acts like a feedback path from the output to the input.However I am not sure what will happen if I change the value from 100Ohms to lets say 1kOhms. I have ...

2 answers  ·  posted 2y ago by MissMulan‭  ·  last activity 2y ago by LvW‭

28%
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Q&A Capacitance gain using conductive core for inductors [closed]

I have learnt that if we have 2 parallel conductive plates and we seperate them the capacitance is increased if we put a good conductor between the plates. Now the resonant frequency of a inductor...

0 answers  ·  posted 2y ago by MissMulan‭  ·  edited 9mo ago by Lorenzo Donati‭

28%
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Q&A Current and voltage of inductor

How do I find the current through the inductor and the voltage of the inductor after the switch is closed?

2 answers  ·  posted 2y ago by MissMulan‭  ·  last activity 2y ago by MissMulan‭

28%
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Q&A Thermal stability coefficient [closed]

The thermal stability coefficient is defined to be: $S = \frac{dI_{C}}{dI_{CBO}}$ where $I_{CBO}$ is the reverse current of the BJT when voltage isnt applied to the base of the BJT. In case of a ...

0 answers  ·  posted 1y ago by MissMulan‭  ·  closed 10mo ago by Nick Alexeev‭

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Meta How to treat data communication questions?

I may be a little bit biased on this one because it was my question which started this thread but : I don't think data communication question should be generally off-topic because it evolves binar...

posted 2y ago by MissMulan‭

Answer
28%
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Q&A Phase shift between phase and line quantities [closed]

In a 3 phase Star source-Star load circuit the phase voltage has different phase than line voltage and in a 3 phase Delta source-Delta load circuit the phase current has different phase than the li...

0 answers  ·  posted 2y ago by MissMulan‭  ·  closed 2y ago by Olin Lathrop‭

Question AC-power 3-phase
28%
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Meta Why are posts that users clearly approve of being closed?

We have to maintain the focus of the Electrical Engineering board at the electrical engineering level. We will be inundated by laymen questions (electronics use, repair, explaining electronics to ...

posted 3y ago by Nick Alexeev‭

Answer
25%
+0 −4
Meta Can I ask about debugging/fixing a broken product?

Thanks for asking. Repair questions are off-topic, in general. We may consider a repair question, if you explain your specific troubleshooting steps, and you understand the design of the device....

posted 3y ago by Nick Alexeev‭  ·  edited 3y ago by Nick Alexeev‭

Answer
25%
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Q&A Fuse monitoring on multiple batteries [closed]

Looking for KalleMP who last commented on the link attached. https://electronics.stackexchange.com/questions/368517/remotely-monitor-condition-of-fuse#:~:text=R1 %26 the LED are the basic indicato...

0 answers  ·  posted 9mo ago by Natti‭  ·  closed 9mo ago by Olin Lathrop‭

Question boost-converter
25%
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Q&A Electric circuit with antenna

Moderator's note: This is getting ridiculous. You keep posting these drawings that are barely legible. The scribbling is bad enough, but the uncropped images are unacceptable. The image you ori...

1 answer  ·  posted 3y ago by MissMulan‭  ·  last activity 3y ago by Olin Lathrop‭

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Q&A Identification of semiconducting electrical components

We identify semiconducting electrical components this way: The first digit represents the number of pn junctions inside the semiconducting device The two or more digit number starting at position...

1 answer  ·  posted 2y ago by MissMulan‭  ·  edited 9mo ago by Lorenzo Donati‭

25%
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Q&A Band pass filter given cutoff frequency and bandwidth

My mistake was taking the third relationship $$ \frac{1}{RC} $$ which says how to find the bandwidth of a parallel RLC filter but we have a series RLC filter. Now solving the system : $$ LC = 100...

posted 2y ago by MissMulan‭  ·  edited 2y ago by MissMulan‭

Answer
25%
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Q&A DC-DC converter using Hartley oscillator and transformer [closed]

Instead of using a buck or a boost converter can we use for DC-DC conversion the circuit Im going to describe in the next lines? First we begin with a Hartley oscillator whose output is fed into ...

0 answers  ·  posted 2y ago by MissMulan‭  ·  edited 9mo ago by Lorenzo Donati‭