Recent searches

No recent searches

Search options

Only available when logged in.
toad.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
Mastodon server operated by David Troy, a tech pioneer and investigative journalist addressing threats to democracy. Thoughtful participation and discussion welcome.

Administered by:

Server stats:

240
active users

toad.social: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.4.1

#electricalengineering

1 post1 participant0 posts today
Continued thread
*
Queen Calyo Delphi

Update!

@MeiLin gave me the search engine shibboleth I needed to find this web page with a lovely and clever transistor circuit that I can try out!

It's even simple enough for me to try to breadboard it!

dos4ever.com/ring/ring.html

Edit:
... Oh wait this emulated schockley diode circuit requires obscene voltages in order to exceed the avalanche breakdown Vec. I uh... can't use that. I'll need to find other solutions. :x

www.dos4ever.comRing Counter Variations
#electronics#electricalengineering
Continued thread
Queen Calyo Delphi

This circuit would be so much easier to implement if I would just let myself use J/K flip-flops, but:

1. the only cheap ones available are duals in 16-pin packages when I only need one per ring node and each ring node is an independent pcb, and

2. I very explicitly decided that the light at each node MUST be surrounded by a curious cloud of discrete components for the sake of art 😤

#electronics#electricalengineering
Queen Calyo Delphi

Oh gods, I'm gonna have to find resources to study up about resistor-transistor, diode-transistor, and transistor-transistor logic, if I want to be able to implement the round-robin circuit for the Horologium Keplerus using discrete transistors. >.>;;

I guess RFC for links to resources if anybody has useful links that can cut through the less than optimal search engine algorithms that almost only return SEO'd blogs that have no meaningful information?

#electronics#electricalengineering
Queen Calyo Delphi

I am *very* temptedly considering something extremely cursed:

Abusing an "ultra thin" ethernet cable to bring +12V+GND to a control box that needs only a few mA max, and 3x 5V differential signals back out to the thing being controlled.

"ultra thin" ethernet cables typically use 30AWG conductors which have a max power transmission ampacity of ~142mA, way more than enough to power the control box.

I'm pretty certain the insulation inside can handle 12V. 🤔

#electronics#electricalengineering
Captain_Faraday :fedora:

Hey everyone! I've made the jump from Mastodon.Social and wanted to introduce myself. I'm an electrical engineer living in the southeastern USA.

You'll find me tooting about Linux, FOSS, Python, and scripting. When I'm not on the keyboard, I'm into photography, hiking, and enjoying nature with my spouse.

Also, I have two black cats that pay rent with their winning personalities and love. lol :rickdance:

Looking forward to connecting in this community! Don't hesitate to say hello.

#Introduction#NewHere#ElectricalEngineering
Captain_Faraday (I've moved!)

Hello Fediverse! 👋

I'm an electrical engineer living in the southeastern USA.

You'll find me tooting about Linux, FOSS, Python, and scripting. When I'm not on the keyboard, I'm into photography, hiking, and enjoying nature with my spouse.

Also, I have two black cats that pay rent with their winning personalities and love. lol

Looking forward to connecting! Don't hesitate to say hello.

#Introduction#NewHere#ElectricalEngineering
*
Harvey Sandstrom

Well, be careful what you wish for I guess. I asked TI Webbench for an ultra efficient 3v3 buck converter and it recommended an inductor that is 13mm x 13mm and a FULL CENTIMETER TALL. Chonky doesn't even describe this thing, it's paperweight all by itself. They don't specify weight but its a cubic centimeter of copper and ferrite, so I'm guessing it's heavy AF.

😲 😳 😣

digikey.com/en/products/detail

DigiKey ElectronicsHC1-100-R | DigiKey ElectronicsOrder today, ships today. HC1-100-R – 10 µH Unshielded Drum Core, Wirewound Inductor 12.79 A 5.7mOhm Max Nonstandard from Eaton - Electronics Division. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
#electronics#electricalengineering
Replied in thread
*
doboprobodyne

@jalefkowit

It's an interesting point you highlight because I've never thought of things through that paradigm. Now that I see it, I realise I'm hoping to transition to #openBSD because I believe of mainstream operating systems, it probably has the best #DX.

In this particular case, I believe that the developers exploit that in order to optimise for what might be called #security which impresses me.

I realise it's probably an outlier in this regard!

#developerExperience#cybersecurity#quality
*
amen zwa, esq.

I still recall the day several decades ago when I, as a young #ElectricalEngineering undergrad, was introduced to the concept of "negative #frequency". I was unsettled. I suppose my reaction to the idea of negative frequencies was like the Medieval mathematicians' reaction to Fibonacci's discovery of negative numbers. But after my head was properly bashed in by a couple of homework problems, this concept became as natural to me as the negative number and the negative time.

I am curious how civil, mechanical, and other engineering fields deal with the concept of negative frequencies.

TrendingLive feeds
About