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
 
66%
+2 −0
66%
+4 −1
Meta Name of the OP in the list of questions

What you ask is not specific to the Electrical Engineering site. There is nothing we can do about it here. If you really think this is a good idea, then you should propose it on the main Codidact...

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

Answer
66%
+2 −0
Q&A High pass filter design

I saw this link by accident and, while Andy's and Olin's answers are spot on, I thought I'd expand a bit on the complications they describe, just so you know what you're missing (or meeting, should...

posted 4y ago by a concerned citizen‭  ·  edited 4y ago by a concerned citizen‭

Answer
66%
+2 −0
Meta Why are posts that users clearly approve of being closed?

The current applicable rule from https://electrical.codidact.com/help/topics would be: Off-topic ... High-level use of electrical devices. If your question treats a device like a black box and isn...

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

Answer
66%
+2 −0
Q&A How to estimate time of completion while developing an electronic product?

First of all, it depends on how much work the customer has done in advance. Do they have a proper spec? Do they at least have a bunch of key requirements? Or is it just "out there" and you must dra...

posted 4y ago by Lundin‭

Answer
66%
+2 −0
Q&A More accuracy from multiple resistors in series or parallel?

The worst case won't get any better, whether series, parallel, or some other combination. The result of two 1 kΩ ±5% resistors in series is a 2 kΩ ±5% resistor. The probability that the result is ...

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

Answer
66%
+2 −0
Q&A De-bouncing input signals?

I've heard that input signals to digital circuits should be "de-bounced", at least sometimes. What is de-bouncing? Why is it needed? When is it needed? What is bouncing around in the first place?

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

Question de-bouncing
66%
+2 −0
Q&A What is the difference between differential amplifier and differentiator?

A differential amplifier and a differentiator are two completely different circuit blocks. Differential Amplifier A differential amplifier has two inputs and one output. It takes the difference ...

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

Answer
66%
+2 −0
Q&A ESD USB Shield Connection & Filtering

Your question is impossible to answer without carefully looking at the layout and schematic. However, from gut feel and experience, this smells like poor grounding design. Common mistakes: Not a...

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

Answer
66%
+2 −0
Q&A Transformer - Vsec or Current rating parameter

I am looking at the datasheet of the 7508170315(link) transformer and something seems strange to me. If I connect this to a 12V supply and expose it to 10us pulse: 12V*10us/475uH = 252mA which ...

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

Question transformer
66%
+2 −0
Q&A Driving ADC with opamp with large rails

In the image below is an opamp buffer with +/- 15v rails connected to a 3.3v ADC. The input to the opamp is limited to 0-3v. There is no protection circuitry for the ADC. Is the risk of the opam...

3 answers  ·  posted 4y ago by z3333‭  ·  last activity 4y ago by coquelicot‭

Question ADC over-voltage opamp
66%
+2 −0
Q&A Transformer - Vsec or Current rating parameter

If I connect this to a 12V supply and expose it to 10us pulse: 12V*10us/475uH = 252mA $$$$ This current flows in the primary magnetization inductance (475 μH) after applying 12 volts for 10 μ...

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

Answer
66%
+2 −0
Q&A Driving ADC with opamp with large rails

Is the risk of the opamp overdriving the ADC too great for no input protection to be used? I would certainly say yes but, this can usually be easily solved by using a current limit resistor in...

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

Answer
66%
+2 −0
Q&A Driving ADC with opamp with large rails

Is the risk too great? That depends on parameters you haven't told us. How cost-sensitive is this product? What is the reliability expectation of the users? How mission-critical is its usage? ...

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

Answer
66%
+4 −1
Meta Can I ask about debugging/fixing a broken product?

A little check list of some basic things to ask yourself before asking such a question: Is this some manner of high/mains voltage device? Repairing such electronics is very dangerous if you don'...

posted 4y ago by Lundin‭

Answer
66%
+2 −0
Q&A Digital multimeter display count range

Digital voltmeters generally display decimal digits. The resolution implied by that is not necessarily the same as the underlying binary A/D. Since voltmeters for human display don't need to be f...

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

Answer
66%
+2 −0
Q&A Digital multimeter display count range

The display counts range is one of the digital multimeter characteristics. We know that a DMM is based on an analog/digital converter, and we know too that each ADC has a certain resolution in bit...

1 answer  ·  posted 4y ago by Pacifist‭  ·  edited 2y ago by Lorenzo Donati‭

Question ADC display count DMM
66%
+2 −0
Q&A Driving ADC with opamp with large rails

Here is a solution to protects very well the ADC from over-voltage spikes, avoid any simulation and design consideration, and that also protects the ADC from a possible negative output spike from t...

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

Answer
66%
+2 −0
Q&A CAN Bus - Internal Oscillator

Every time I needed CAN, I had just put external crystal and didn't think about it after that. It worked fine. I am wondering however whether the precisions of MCU internal oscillator is sufficien...

3 answers  ·  posted 4y ago by 2kind‭  ·  edited 4y ago by Lundin‭

Question microcontroller CAN-bus clock
66%
+2 −0
Q&A High Power Switch - High Side vs. Low Side Switching

It's still unclear what you are really asking, so I'll discuss the tradeoffs between low and high side switching of power to a load. Low side switching The main advantage of low side switching is...

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

Answer
66%
+2 −0
Q&A CAN Bus - Internal Oscillator

You are making this too complicated. The only thing that matters is the percentage mismatch between any two clocks on a CAN bus. You seem to imply that you are willing to guarantee the -10 °C to ...

posted 4y ago by Olin Lathrop‭

Answer
66%
+2 −0
Q&A Confused about the amplitude and shape of output voltage pulse

In the circuit below, I am applying a $3.3Vpp$, $63kHz$, 50% Duty Cycle, PWM input signal at the gate of the mosfet and I am expecting to see a similar waveform with different amplitude at the LED...

2 answers  ·  posted 4y ago by Georgian‭  ·  last activity 4y ago by coquelicot‭

Question LED PWM
66%
+2 −0
Q&A Purpose of emitter resistor in a common collector amplifier

In addition to the previous considerations, I will add a few more. Stages with voltage output (such as a voltage follower) are implemented as voltage dividers consisting of two elements in series "...

posted 4y ago by Circuit fantasist‭  ·  edited 4y ago by Circuit fantasist‭

Answer
66%
+2 −0
Q&A Why RC toys still operate in 27Mhz band?

Recently I had opened an remote control (RC) toy to see its circuit and found that it operates on 27 Mhz. Not just that toy even many toys operate in that 27 and 49 Mhz band. These days we find eve...

2 answers  ·  posted 5y ago by aditya98‭  ·  last activity 5y ago by Olin Lathrop‭

Question frequency
66%
+2 −0
Q&A High pass filter design

You are asking for a filter that passes 2% at 60 Hz and 99% at 90 Hz. That comes out to a transition of 97% of the amplitude within 0.6 of an octave, which is quite aggressive. The real answer My ...

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

Answer