Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »

Search

Advanced Search Options

To further refine your search, you can use additional qualifiers such as score:>0.5. For example, the search score:>=0.5 created:<1y grammar would return only posts mentioning "grammar" that have a score >= 0.5 and were created less than a year ago.

Further help with searching is available in the help center.

Quick hints: tag:tagname, user:xxx, "exact phrase", post_type:xxx, created:<N{d,w,mo,y}, score:>=0.5

Filters
 
50%
+1 −1
Meta Should a fake user's posts be deleted if the fake user has subsequently been deleted by the site

The question below was raised by a "new user". The identity of the "new user" was deleted because it was found to be an alias of an already suspended user: - So, why is the question still active...

1 answer  ·  posted 2y ago by Andy aka‭  ·  last activity 2y ago by Olin Lathrop‭

Question discussion bug suspended-user deleted-user
50%
+1 −1
Q&A how to figure out the max power of a transformer?

If there isn't a VA rating on the label or published in a reliable source, then you have to guess. There are several clues that can be used: Look at the size of the primary wires. That gives you...

posted 2y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

Answer
50%
+0 −0
Q&A Pulse disappear in digital scope just by looking at different signal in other channel.

I have a HANTEK 6022BE oscilloscope and I'm monitoring three signals with it: FS (Frame sync clock). Pulse. Transfer complete. I'm using two channels of the scope to monitor a pair of these...

1 answer  ·  posted 2y ago by mohammadsdtmnd‭  ·  last activity 2y ago by Lorenzo Donati‭

Question oscilloscope
50%
+1 −1
Q&A What are these transformer graphs about?

This picture describes the behaviour of a single phase transform under resistive,inductive and capacitive loads(from left to right) How what exactly is $V_{1}$ ?Is it the voltage at the primary ...

1 answer  ·  posted 2y ago by Volpina‭  ·  last activity 2y ago by TonyStewart‭

Question transformer voltage current AC
50%
+1 −1
Q&A how to figure out the max power of a transformer?

I have a MOT that is rated 220V-50Hz only and i need to know its maximum operating power i tried to google the reference number but unable to find anything about its power, so how to figure out the...

2 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by Jasen‭

Question transformer power
50%
+0 −0
Q&A What is the role of master clock speed on DAC

Question 4 solved: The datasheet lacks the information I've copied from PCM5122:

posted 2y ago by mohammadsdtmnd‭

Answer
50%
+1 −1
Q&A What we call this opamp configuration? [SOLVED]

What we call this opamp configuration?   A mess. What's the advantage and the disadvantage of this circuit? This can't be judged without the stated objectives. It might be useful for keepi...

posted 2y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

Answer
50%
+2 −2
Q&A Role of C2 (bypass capacitor)

I have been reading about thermal noise in resistors and I have a question: Suppose we have this circuit: Is C2 here to protect the voltage source from thermal noise?

2 answers  ·  posted 2y ago by Volpina‭  ·  last activity 2y ago by Andy aka‭

Question capacitor noise resistor
50%
+4 −4
Meta How to treat data communication questions?

I think these kind of abstract/big picture data communication questions should be on-topic here. Such as the mentioned question about the OSI model. I've been actively pushing for software.codidac...

posted 3y ago by Lundin‭

Answer
50%
+1 −1
Q&A How long does it take for energy to propagate in a circuit?

This is someone trying to rehash a Light experiment with circuits, however I do not think it holds up. Inside a medium, charged particles are subject to Drift Velocity. When you work through the ca...

posted 3y ago by Meat5000‭

Answer
50%
+0 −0
Q&A What is minimum resolution here?

In this datasheet it says that the minimum resolution is 0.1uA for the 10mA range.What is this minimum resolution?Is it the sensitivity of the multimeter for the 10mA range?

1 answer  ·  posted 3y ago by MissMulan‭  ·  last activity 3y ago by dsr‭

Question voltage accuracy current multimeter
50%
+1 −1
Q&A MOSFET not turning completely off

Hello everyone, I have a simple circuit in which I control some LEDs via an MCU and DMG2302UK ( N-channel MOSFET ) The EN pin is connected to an MCU gpio pin that works at 3.3V. The circuit wo...

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

Question MOSFET
50%
+0 −0
Q&A Capacitors of voltage regulators [closed]

Assuming we have a voltage regulator : Why do we have to ground Vin and Vout using 2 capacitors just like that?Co could be to provide a low resistance path to GND at high frequencies but what is...

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

Question capacitor voltage voltage-regulator
50%
+1 −1
Q&A Find feedback of circuit

I must admit that your question (the described problem) is an interesting one. Speaking about the circuit (without consideration of the parts values), there are two feedback effects: At first, ...

posted 3y ago by LvW‭

Answer
50%
+0 −0
Q&A Signals and plane on the same layer

Based on very little information and you just starting PCB layouts, you may be overthinking this problem or rightly concerned. There are a lot of fundamentals you might already know about how to m...

posted 4mo ago by TonyStewart‭

Answer
50%
+2 −2
Q&A Speaker receives interference

My Altec Lansing speakers sometimes bleat out a weird sound. It's usually something like "dit. dit-dah-dit. dit-dah-dit." I suspect it has something to do with radio traffic from my computer or ph...

1 answer  ·  posted 2mo ago by Michael‭  ·  last activity 2mo ago by Olin Lathrop‭

Question EMC EMI speaker
50%
+2 −2
Q&A Biasing a differential opamp input

I have a differential signal source and a single source amplifier. The source has 2Vp-p signal. I wanted to center the differential signal around 2.5V, so I came up with the following circuit: S...

1 answer  ·  posted 11d ago by Elleanor Lopez‭  ·  last activity 11d ago by Olin Lathrop‭

Question opamp
50%
+1 −1
Q&A Geophone amplification circuit behavior

This is an expansion on Biasing a differential opamp input post. Olin pointed out that gotchas can be in the implementation, so I will provide the circuit and design specifications as well as my re...

1 answer  ·  posted 7d ago by Elleanor Lopez‭  ·  last activity 7d ago by Olin Lathrop‭

Question opamp
50%
+1 −1
Q&A Changing PCB trace width once signal-to-noise ratio is high

None of these ideas optimize the SNR that you need. You need to design with error correction or (suppression); 50V/m grid E-field (Right Led Drive RLD) >100 dB suppression AM radio noise (...

posted 4mo ago by TonyStewart‭  ·  edited 4mo ago by TonyStewart‭

Answer
50%
+0 −0
Q&A Robust digital output protection

I am working on a digital output concept that I would like to have the following characteristics: Output voltage swing: 0 to 5V Controllable by the uC from 3.3V power supply I would like to be...

0 answers  ·  posted 5d ago by 2kind‭  ·  edited 4d ago by Velvet‭

Question ESD digital-output
50%
+0 −0
Q&A Tesatronic TTD20 DGND AGND unconnected

I see and from the photo left to right , the 3 regulators are ; +15, -15 , + 5.0 LM324-15 LM320-15 LM324-50 The +ve LDO's share the same heatsink with insulator + plastic screws. To...

posted 4mo ago by TonyStewart‭  ·  edited 4mo ago by TonyStewart‭

Answer
50%
+0 −0
Meta How about a `basic-circuit-block` tag?

I'm in the process of giving the tags page some structure, writing tag descriptions and creating synonyms and some hierarchy. I'd like to know the Community stance on a new tag I'd like to add: b...

0 answers  ·  posted 2y ago by Lorenzo Donati‭

Question discussion tags
50%
+0 −0
Q&A Converting 5V to ±12V

I would like to convert 5V rail I have on PCB to ±12V. Existing solution is using boost converter 5V to 12V, and a buck for 5V to -12V. This feels bulky for what it's needed - here are the requirem...

2 answers  ·  posted 1y ago by 2kind‭  ·  last activity 1y ago by H_H‭

Question chargepump
50%
+0 −0
Q&A What fabrication process is being used for jellybean parts

As of the early 2020s, common technology nodes for SSI (Small-Scale Integration) and MSI (Medium-Scale Integration) ICs include nodes such as 180nm, 130nm, 90nm, 65nm, 45nm, and 28nm. Each technolo...

posted 1y ago by TonyStewart‭  ·  edited 1y ago by TonyStewart‭

Answer