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1.2k posts
 
66%
+2 −0
Q&A Photodiode transimpedance amplifier with single supply

synopsis Achievable by using a rail-to-rail op-amp. A small bias on the non-inverting input improves the transient response of the op-amp. That’s the second circuit in the O.P. I use such top...

posted 25d ago by Nick Alexeev‭  ·  edited 25d ago by Nick Alexeev‭

Answer
66%
+2 −0
Q&A What is connector pitch and how to measure it?

Pitch is defined as the center-to-center measurement between two pins/legs of the component. Connectors in particular are always categorized by manufacturers/retailers based on pitch, so it is the...

posted 4mo ago by Lundin‭  ·  edited 4mo ago by Lundin‭

Answer
66%
+2 −0
Q&A OP-AMP PT100 signal conditioner

How does this circuit work, especially considering that it's intended to be used as a PT100 conditioner?

1 answer  ·  posted 21d ago by erisla‭  ·  last activity 20d ago by Olin Lathrop‭

Question opamp RTD PT100
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+2 −0
Q&A Purpose of resistance between SENSE/FORCE line of power supply

Furthermore, an amplifier symbol called "gm" is labeled as transconductor. What does it do? Transconductors are voltage-controlled current sources, but what are they doing here? The diagram lo...

posted 5mo ago by Nick Alexeev‭

Answer
66%
+2 −0
Q&A Summing op-amp 10 meters long

I’ve a linear sensor array (broadside). The array is 10m long and it contains 20 sensors. There’s a limit on the number of wires. I can have a handful of wires running the length of the array, b...

1 answer  ·  posted 9d ago by misk94555‭  ·  last activity 9d ago by Olin Lathrop‭

Question Analog opamp
63%
+5 −2
Meta Please find other ways to hide inloved questions that prompt close

Here's the thing, and this is where I think there's a disconnect of understanding. On Stack Exchange, and to a similar extent here, question closure signals "this question is not suitable for this ...

posted 4y ago by ArtOfCode‭

Answer
62%
+3 −1
Q&A How to plot the I-V curve of a tunnel diode?

I am trying to understand tunnel diodes by experimenting with them. Research tells me they can have negative resistance, and can be used to build a high frequency oscillator. Tunnel diodes are su...

4 answers  ·  posted 4y ago by tlfong01‭  ·  edited 1y ago by Lorenzo Donati‭

62%
+3 −1
Q&A Microwave oven interfering with WiFi on the 2.4GHz band

As I understand it, microwave oven magnetrons operate at 2.45GHz, which is an unlicensed band in most of the world. When 2.4GHz technologies such as WiFi (802.11), Bluetooth and Zigbee were launche...

2 answers  ·  posted 4y ago by Lundin‭  ·  last activity 3y ago by TonyStewart‭

Question EMC RF WiFi EMI radio
62%
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Meta Name of the OP in the list of questions

Is it possible to add the name of the OP near each question inside the question list? Only the name of the "last activity" person appears there. For me, that would help. I would like to see somet...

1 answer  ·  posted 4y ago by coquelicot‭  ·  edited 4y ago by Monica Cellio‭

Question feature-request
62%
+3 −1
Q&A How to check realistic specs of small solar panel?

All good designs and design testing is based on information contained in the component data sheets. A solar panel is no different so, you need to establish the operating conditions for measuring vo...

posted 2y ago by Andy aka‭

Answer
62%
+3 −1
Q&A Power amplifier for remote controller

I'm designing remote controller based on NRF24L01 and STM32. I want to use SMA antenna. My question is regarding power amplifier (PA). When is it necessary to use one? The range I'm aiming for is 2...

3 answers  ·  posted 2y ago by Stefan‭  ·  edited 1y ago by Lorenzo Donati‭

62%
+3 −1
Meta How to treat data communication questions?

I agree that the particular question was correctly closed. Questions about protocol stacks aren't necessarily off topic. However, this one was because nothing about it had anything to do with ele...

posted 3y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

Answer
62%
+3 −1
Q&A Help with differential to single ended voltage converter

Hello I don't understand how this differential to single-ended voltage converter can work. What I don't understand is why we place a current mirror(a current mirror copies the current flowing thr...

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

62%
+3 −1
Q&A What reactance actually is?

Here is another "functional explanation" of this phenomenon (see also my RG question). General feature. Unlike resistors that directly decrease current, both capacitors and inductors do it by subt...

posted 2y ago by Circuit fantasist‭  ·  edited 2y ago by Circuit fantasist‭

Answer
62%
+3 −1
Meta Creating an "Insights" category

What you describe is already allowed in Papers. See electrical.codidact.com/help/papers. The papers by Circuit Fantasist are well on topic. Presenting a concept in an accessible way is OK. I ha...

posted 3y ago by Olin Lathrop‭

Answer
62%
+3 −1
Q&A Having a hard time understanding discrete audio amplifier output stage error corrector circuit

I'm trying to implement a circuit I read about in a book recently, but having a hard time deriving the relationships for the required impedances for error corrector balance. Here is the circuit: ...

0 answers  ·  posted 4mo ago by drinkingcube‭  ·  edited 4mo ago by Nick Alexeev‭

62%
+3 −1
Q&A Using only ceramic capacitors on an input of an SMPS - unclear advice from manufacturer

I was reading through the datasheet of a boost converter, TPS61023 from TI. In the "Input Capacitor Selection section", they give the following advice: 8.2.2.5 Input Capacitor Selection Multil...

2 answers  ·  posted 6mo ago by Mu3‭  ·  last activity 6mo ago by Nick Alexeev‭

Question capacitor SMPS
62%
+3 −1
Q&A When and where to use vias in an IC design layout

I am learning IC design layouts using Cadence Virtuoso and now I got stuck with the concept of using vias. The question is when and where to use it? I am attaching the schematic of my inverter tuto...

1 answer  ·  posted 1y ago by aditya98‭  ·  last activity 1y ago by Designalog‭

Question IC layout via
61%
+6 −3
Q&A weak WiFi when microwave is running [closed]

Nowadays, that I videoconference over WiFi a lot, I've started to notice some trends in WiFi quality. And it seems my connectivity decreases when my microwave oven is on (I work in the same room a...

1 answer  ·  posted 4y ago by msh210‭  ·  last activity 4y ago by .                                                .‭

Question wireless
61%
+6 −3
Meta Let's make all downvotes public

One of the aggrevations Elsewhere were all the vandal and retribution downvotes. They never took the problem seriously. Now it's happening here. Andy was the latest target, twice, recently. I'v...

6 answers  ·  posted 3y ago by Olin Lathrop‭  ·  last activity 3y ago by coquelicot‭

Question feature-request
60%
+1 −0
Meta Creating an "Insights" category

We have such low volume as it is, that I wouldn't want to see another category added at this time. It would only emphasize how little traffic there is. Let's not make the same mistake that Photog...

posted 3y ago by Olin Lathrop‭

Answer
60%
+1 −0
Meta Are reference requests on-topic?

We haven't really addressed what SE would call "requests for external resources" here. I think it's quite clear that we aren't taking shopping recommendations, as in "where do I buy this part". Ask...

posted 3y ago by Lundin‭

Answer
60%
+1 −0
Meta Creating a FAQ: how to read a datasheet

How about this: I create a meta thread here where everyone is welcome to post contents, feedback and proposed changes. The question of the meta thread should contain a continuously updated draf...

posted 3y ago by Lundin‭

Answer
60%
+1 −0
Q&A Via on pad: acceptable or not?

This can be OK if you consider and address the consequences carefully. It's something I would only do as a last resort. Usually I try to make sure the hole itself is outside the outline of the pa...

posted 3y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A Confusion with Wikipedia article on multivibrator circuit [closed]

A while ago I made a question about the monostable multivibrator .Lets get a picture of it: When switch is closed it enters its unstable state and it eventually returns to the stable state Howe...

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