TuxSpice is a native Linux schematic capture and waveform viewer that works with LTspice files. It opens and saves LTspice .asc schematics and .asy symbols, uses the symbol and model libraries from your own LTspice installer, and runs simulations with ngspice. It does not need Wine.

https://github.com/UnkindledTwo/TuxSpice

Tell me what you think about the project. Right now it's at a very fresh start and most stuff don't work yet. Some of the GUI is there and some example projects work, still the GUI needs a lot of work to be usable.

I got Dual Citizenship due to new law and grandparents being Quebecois

Got 5 years and a taking Power PE

Seems like everywhere is on shaky footing

Hi yall, I have an interview at Samsung for Semiconductor Engineering Internship.

Anyone have experience with interviews at Samsung for similar roles and know how the interview questions might look like? Thanks

ACB (Air circuit breakers): Safety shutters - The line side and load side shutters operate independently, and can be separately padlocked in the closed position.

Question: Why the line side and load side shutters to be operated individually? only thing I can think of is to access the cable compartment when the bus is energized and when the ACB is withdrawn (completely removed from the switchgear).

Im a junior at a california university,

Ive come in and am trying to undertsand where to put my focus

Ive met third years with internship experience and job offers

And ive met fourth years still trying to figure out what the hell they are doing

Im feeling like im still picking up momentum

Im currently in an analog electornics course

And a signals and systems course

I have no personal projects (complete)

And im still settling in physically(financially/ shelter wise)

Its kind of all overwhelming. So much to learn and do and so much pressure.

I have an AS in Comp Sci.

Im interested in embedded systems/electronics as a career...

Any advice ??? Thanks

Hi, this is my first post here. I have been spending a lot time this year trying to find my first job out of undergrad. So I accepted a job for basically troubleshooting and sustaining a product in my current town. This first company is stable and has been around for a long time and I am not worried about getting laid off. I wasn't too excited for it and it seemed to be kinda boring and I wouldnt learn much EE skills. It seemed to be mostly troubleshooting and occasional travel to onsite customer visits to figure out why their product isnt working.

But i recently got a job offer for a defense contractor that is trying to go from startup to mid size company. I'm not too thrilled about missiles, its not that I don't like them, its just seems not that much fun work. But I believe I would be able to learn alot more, especially circuit design. I would have to move across the country and the company will be able to help me with the expenses. I have been thinking about this for a bit and I am stuck. I don't know if I am smart enough or have the greatest foundation in circuits to do design for the second company. I feel like I wouldn't be able to keep up or would take too long to understand circuits or certain topics. I know its my first job and both companies will train me. But I feel like i would disappoint the second company. What if the second company ends up firing me because I'm not smart enough to complete projects on my own? Idk im scared to make the wrong choice. The company in town seems easy work and its decent pay. The second company seems to be better experience and more opportunities for me to learn and grow. I would also be able to live on my own, which I have been wanting to do since I graduated. I would also have to be long distance with my bf for a few months, and he prefers I stay in town. The pay between the two jobs is about the same. I would just save more money in town since I would have no rent living with parents or really low rent while living with bf. Thank you for any advice! I appreciate it!

Hey guys, I’m a sophomore studying electrical engineering and I just got my first technical interview for a PCB design role. I’ve never gone through this process and was wondering if anyone would be willing help out.

hi guys im trying to make a gift (a booklet of problems for her to solve for fun) for a friend who really likes EE/math but idk anything about it. I have a list of topics they like and I was wondering if anyone could either help me with coming up with the questions/answers or point me to websites that might help… tysm…

Hello all,

I have a software engineering background but have zero EE background.

My goal is to build a device that has around 3-5 buttons and connects to your phone via bluetooth.

Does anyone have any book recommendations for someone that is a complete beginner in this field?

Eventually I do want to prototype products and work with Chinese manufactures to create a product and maybe mass produce

Hi all,

In the near future I will probably need to learn how to use Ansys SIWave software for simulating high speed SERDES and generic compliance of high speed digital links. Exporting PCB layouts, generating eye diagrams and comparing technologies. Also DDR timing simulations and power integrity PDN simulations.

Has anyone used Ansys software before and followed some good training courses? I am starting to do some recon so I can get a good introductory course tailored for these situations.

Thanks for the help!

Which is more recognised n more important for diff types of energy?

Hello everyone! I'm a 4th-year IT student from the Philippines, working on an IoT-based compost monitoring and control system for our capstone project.

We need to control a single-phase 220V AC geared motor remotely using an ESP32, but we want to make sure the electrical design is safe and reliable.

Our components:

• Motor: 220V AC, 40W geared motor (5GU-10K gearbox)
• Speed controller: US-52 with CW / STOP / CCW direction control
• Microcontroller: ESP32 DevKit V1
• Relay module: 4-channel, 5V relay board
• Contactor: CHINT CJX2-0910, 220V AC coil
• RCBO: CHINT NXBLE, 16A, 30mA
• Power supply: Philippine household 220–230V, 60Hz

What we want to achieve:

Our mobile application sends ON/OFF commands through Firebase to the ESP32. The ESP32 should start or stop the motor safely.

We don't need to adjust motor speed from the ESP32 because the US-52 already handles speed control. We can also keep the motor direction fixed.

Our questions:

1. What is the safest recommended method to control this motor through the ESP32 while retaining its US-52 speed controller?
2. Should we switch the controller's AC power input using a properly rated contactor, or is there a manufacturer-approved external run/stop control method?
3. Is our existing 5V relay module suitable for controlling an appropriately rated contactor coil, with proper isolation and protection?
4. Are there risks associated with repeatedly removing and restoring power to the US-52 controller, particularly unexpected motor restarts?
5. What electrical protection, grounding, and safety interlocks should we implement?

We previously experienced sparking at a connection and an electric shock during testing, so we have stopped energized testing. Our current two-conductor supply cable does not provide protective earth, and we want to correct the design before proceeding.

We would appreciate recommendations for a safe control architecture and any manufacturer documentation we should obtain before installation.

Thank you for your help!

Round 1: https://www.reddit.com/r/ElectricalEngineering/s/e8XdjwYR4F

Thanks for the roast last time. The main complaints were that the schematic was hard to read and the layout was all over the place, so Claude has redone both.

The schematic is now split into 8 pages with actual wires instead of net labels on every pin. Claude placed the parts manually this time instead of using an optimiser, grouped by what they do. The tap inputs now go into an ADC next to the connector instead of running across the board to the ESP32. Signal vias are down from 177 to 51.

Roast it again. I’m especially keen on feedback on the 12 V input protection, the speed sensor input and the buck converter.

The first three pics are before and after.