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
1.2k posts
 
60%
+1 −0
Q&A Isolated Digital Input - Overvoltage protection

UPDATED. based on clarification to original question. To be clear, just an idea, not tested for this situation! It is abusing the V_I_L margin on the 3.3V CMOS input, so series diode should be sc...

posted 4y ago by Pete W‭  ·  edited 4y ago by Pete W‭

Answer
60%
+1 −0
Q&A Max V/Hz value for motor

I want to run a specific motor in the open loop. How to calculate the maximum ratio of V/f to run it? Am I looking at Ld or Lq value for this? Let's say these are the characteristics - haven't ch...

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

60%
+1 −0
Q&A Is it possible to design an n-bit full adder using SystemVerilog?

I am trying to design a full adder in SystemVerilog. I searched on Wikipedia and I found this https://en.wikibooks.org/w/index.php?title=Microprocessor_Design/Add_and_Subtract_Blocks module full_...

1 answer  ·  posted 4y ago by System‭  ·  last activity 4y ago by System‭

60%
+1 −0
Q&A My grid dip: how does this electron tube technology work?

The video helped explain a few things, but it's still not clear what the overall purpose of this device is. You showed it clearly producing a signal, but the documentation you quote talks about an...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A Darlington or Sziklai configuration - why and when using complementary pairs?

Why does the Darlington or Sziklai configurations need complementary transistors? For these configurations, when should I use complementary pairs and when could I use not complementary pairs ?

1 answer  ·  posted 4y ago by coquelicot‭  ·  edited 1y ago by Lorenzo Donati‭

60%
+1 −0
Q&A Constant Current Load Circuit with Op Amp

let me begin with a schematic for an adjustable current source with a simple load: The operation is simple: The current I inside R1 gives rise a voltage drop equal to I/R1 (= I if R1 = 1). So the ...

posted 4y ago by coquelicot‭  ·  edited 4y ago by coquelicot‭

Answer
60%
+1 −0
Q&A Constant Current Load Circuit with Op Amp

Assuming nothing is broken or wired incorrectly, this is most likely the result of the opamp oscillating wildly. The average may still be about what it should be, so you might not notice with only...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A When to use RTOS?

RTOS A RTOS (Real Time Operating System) is much more than a bunch of interrupts. Most true dedicated microcontroller applications don't need any RTOS or any other kind of operating system. Genera...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A How could a damaged wire in split-phase power delivery create these voltages?

Well, here is was my logic tells me: The corrosion has caused a high impedance in the L2 wire, but there should be also a "short" between the L1 and L2 wire. So that the voltage between L1 and L2 f...

posted 4y ago by coquelicot‭  ·  edited 4y ago by coquelicot‭

Answer
60%
+1 −0
Q&A Humming noise from a boost converter's inductor

My step-up converter makes audible noise both with and without a load.I am almost certain it is the inductor, because when I hold my finger on it I can feel vibration and it gets quieter. Unfortuna...

2 answers  ·  posted 4y ago by Kranulis‭  ·  last activity 4y ago by Olin Lathrop‭

Question power-supply
60%
+1 −0
Q&A Switch-off time of relay with flyback diode

It doesn't quite work that way. You are missing the fact that the current (which the magnetic field is proportional to) decays exponentially. You are also missing the resistance of the coil itsel...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A How could a damaged wire in split-phase power delivery create these voltages?

When the outage occurred, I observed the following The L1/G voltage difference was 120V (good). The G/L2 voltage difference was 90V (bad). The L1/L2 voltage difference was 30V (very bad!). If t...

posted 4y ago by Andy aka‭  ·  edited 4y ago by Andy aka‭

Answer
60%
+1 −0
Q&A Transformer - Vsec or Current rating parameter

In addition to what Andy said (+1), the 350 mA AC figure is probably limited by power dissipation, and therefore temperature. It applies during normal forward operation where the secondary current...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A CAN Bus - Internal Oscillator

CAN is asynchronous and, if you receive a string of consecutive zeros, the UART mechanism that turns raw CAN data into "a byte" might have to wait a great deal longer than 1 bit of data before it c...

posted 4y ago by Andy aka‭  ·  edited 4y ago by Andy aka‭

Answer
60%
+1 −0
Q&A CAN Bus - Internal Oscillator

Check out What are the most common causes of CAN bus communication errors? As stated there, CAN requires a clock accuracy of 1.58% or your CAN node is non-compliant. I would recommend to use <1...

posted 4y ago by Lundin‭  ·  edited 4y ago by Lundin‭

Answer
60%
+1 −0
Meta User's reputation score not displaying on top ribbon

It appears that a user's reputation score has disappeared from the top ribbon at the side of the user's login avatar/picture. Is this an intentional thing?

0 answers  ·  posted 4y ago by Andy aka‭  ·  edited 4y ago by Monica Cellio‭

60%
+1 −0
Q&A What is the difference between differential amplifier and differentiator?

Since am interested in how a delta sigma modulator works, I need to know what is the difference between differential amplifier and differentiator if there is a difference of course.

3 answers  ·  posted 4y ago by Pacifist‭  ·  edited 1y ago by Lorenzo Donati‭

60%
+1 −0
Q&A Moving average that uses less memory?

A bit of a tangent, but in mcu firmwares, higher order filters can also be implemented directly with biquad sections. More work to implement vs single pole, but very reusable. Although to be honest...

posted 4y ago by Pete W‭  ·  edited 4y ago by Pete W‭

Answer
60%
+1 −0
Q&A Flyback Converter - Output Ripple

Ripple doesn't need to be that high. I've done flyback supplies to power isolated sections quite a bit, using a pulse on demand scheme like yours. It's not hard to get the ripple down to ±50 mV. ...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Answer
60%
+1 −0
Q&A Flyback Converter - Output Ripple

I am eager to create a flyback converter for driving the high side MOSFET. Here is a snapshot of my work so far: 555 timer starts with generating ~100kHz 12V signal on Q1. Q2 is monitoring the v...

1 answer  ·  posted 4y ago by 2kind‭  ·  last activity 4y ago by Olin Lathrop‭

60%
+1 −0
Q&A High Power Switch - High Side vs. Low Side Switching

Answer to question 1: First, you need p-mos and not n-mos, as you are switching the circuit from the above. Second, it is better and simpler to parallelize mosfets for big current switches; this w...

posted 4y ago by coquelicot‭  ·  edited 4y ago by coquelicot‭

Answer
57%
+2 −1
Q&A How can I debug, (and eventually fix) this Roomba PCB? [closed]

I've got a broken roomba, I've tried new batteries and a working charger. The charger is supposed to output 20V-24W when the roomba is plugged in. the picture just shows how I'm measuring the pow...

1 answer  ·  posted 4y ago by dustytrash‭  ·  edited 4y ago by dustytrash‭

Question errors battery
57%
+2 −1
Q&A What to check for when buying an electronic component or module?

Any electronic component or module you buy for a project or design should have a data sheet. By data sheet I mean a portable document format (PDF or equivalent) like this: - Do not assume that...

posted 4y ago by Andy aka‭  ·  edited 4y ago by ArtOfCode‭

Answer
57%
+2 −1
Q&A How to estimate time of completion while developing an electronic product?

I'm actually an algorithmic engineer, not an electronic engineer. But your question is extremely general, and valid for every field of engineering. Also, it obviously depends upon the human and tec...

posted 4y ago by coquelicot‭  ·  edited 4y ago by coquelicot‭

Answer
57%
+2 −1
Q&A ESD Protection - Differential Amplifier

More about the circuit The circuit is sensing (low side sensing for many reasons) current used to power up the lights with 28V(part of the schematics not shown here -> relay with LC filter ...

3 answers  ·  posted 4y ago by 2kind‭  ·  edited 1y ago by Lorenzo Donati‭