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 »

Posts by mohammadsdtmnd‭

8 posts
75%
+4 −0
Q&A Why arc welding does not require high voltage to arc?

I've heard that arc welding is getting done with low voltage. I believe arcing requires high voltage. Then how is arc welding done with about 50 volts? I thought we need kilovolts for arcing. Why? ...

3 answers  ·  posted 1y ago by mohammadsdtmnd‭  ·  last activity 1y ago by TonyStewart‭

66%
+2 −0
Q&A Audio OpAmp requirements

As we know audio has high dynamic range. It means 120dB dynamic range of human ear causes to hear 1 million time samaller that highest undistorted accoustic wave. Then I think for high end audio we...

1 answer  ·  posted 1y ago by mohammadsdtmnd‭  ·  last activity 1y ago by Olin Lathrop‭

Question audio
60%
+1 −0
Q&A Pulse disappear in digital scope just by looking at different signal in other channel.

The problem was the transient you can see in the first picture, the blue one. When I connect the scope to it, it becomes stabilized. Otherwise it is noisy and because of this the other signal chang...

posted 1y ago by mohammadsdtmnd‭  ·  edited 9mo ago by Lorenzo Donati‭

Answer
60%
+1 −0
Q&A What is the role of master clock speed on DAC

In protocol I2S we have 3 signal + one none standard master clock(Mentioined by Olin Lathrop): 1.data 2.lrck/fck (frame synchronizer) 3.bck (bit clock) 4.mck/sck (master clock) Question 1: Why we...

2 answers  ·  posted 1y ago by mohammadsdtmnd‭  ·  last activity 1y ago by mohammadsdtmnd‭

Question clock audio DAC
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 1y ago by mohammadsdtmnd‭  ·  last activity 9mo ago by Lorenzo Donati‭

Question oscilloscope
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 1y ago by mohammadsdtmnd‭

Answer
40%
+0 −1
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 16d ago by mohammadsdtmnd‭  ·  edited 10d ago by mohammadsdtmnd‭

Question RF pcb-layout layout
33%
+0 −2
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 2mo ago by mohammadsdtmnd‭  ·  closed 2mo ago by Olin Lathrop‭