r/ElectricalEngineering 9h ago

Another project I really enjoyed 😊

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450 Upvotes

r/ElectricalEngineering 5h ago

Flappy bird circuit on pcb without microcontroller

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397 Upvotes

r/ElectricalEngineering 23h ago

Education Why Arm is more efficient than x86

57 Upvotes

Hi I'm in an undergrad processor architecture class that's covering risc cpus and I was wondering what part of the architecture in arm cortex cpus make them more power efficient than a typical x86 cpu like your Intel and amd chips. I asked my professor and he more or less told me that it's how arm based processors use a combination of 16b and 32b instruction sets vs x86 using all 32b instructions but just wanted a bit more clarification and explanation on the topic. Thanks!


r/ElectricalEngineering 7h ago

How bad is job hopping viewed in this field?

20 Upvotes

I'm on my 3rd job. I started off at my first job 3 years ago and despised it completely. I left within 10 months and landed another role for about 20 months and didn't get a raise so I started looking elsewhere.

I just started my 3rd job and am going to stay 2 years at the minimum, but am concerned about the same thing happening. Sometimes a subfield which might have seemed interesting turns out to be miserable, or maybe I run into a case of the 2nd job where I get literally zero raises or promotions.

I get that I'm supposed to show some loyalty, but I'm not really willing to abuse myself that much. At my 2nd role, I knew senior engineers there with 10+ years of experience making sub-100k in a HCOL area. It's just ridiculous.


r/ElectricalEngineering 10h ago

Sound and Light sculpture.

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14 Upvotes

Made this based on a Daisy seed 3. The music is auto generated. There are 8 different sounds in the mix and all of them are connected individually to a pair of filaments.

It's a very rudimentary sculpture, but its my first of it's kind.

I was inspired by Eirik Brandal's amazing creations.

Hope you like it.


r/ElectricalEngineering 22h ago

Jobs/Careers Didn’t get the Internship

9 Upvotes

I was just given news I didn’t get the internship that I interviewed for. Interview went awesome I thought. The only thing they said was the lack of autocad experience. I have experience in multiple other cad softwares including solidworks, which is harder than autocad in my opinion. Is it really that competitive? How do I market myself to let these interviewers know that this stuff is really damn easy for me, and not having experience in a specific software (that I could learn in a couple days, beyond what they probably use it for) shouldn’t be a reason to pick someone else?

I’m trying and failing to not take this personally! I’ve been jaded in this job market ever since I was laid off, a few months prior to deciding to go get a degree in EE.


r/ElectricalEngineering 18h ago

imposter syndrome is killing me

6 Upvotes

im a first year electrical eng student at a pretty prestigious university in north america. my fall semester last year was pretty tough. i managed to scrape by but then in my 2nd semester my study habits got very flimsy, was feeling super burnt out, mental health was declining, which in result had me to repeat the entire 2nd semester. the rule for my uni is if you fail more than 2 courses, you have to repeat the semester. this not only delayed my grad by a year, but overall derailed my journey of graduating on time with my other peers.

what kills me the most is that only 2-3 students in my class ended up in the same situation as me. which means chances of me failing would have been quite low, but i still managed to hit rock bottom. some advisors told me to
consider looking at other eng, but i really feel committed to my current one and am currently pushing through. i just finished 3 out of my 7 courses during the summer semester and will be back again in the fall with the new freshmen

overall, my morale seems to not be getting any better. maybe this is the result of being a high achiever throughout my life until university. maybe this won’t seem like a big deal after i finally graduate, but right now i feel i don’t belong in my class at all :,)


r/ElectricalEngineering 15h ago

Is something wrong with my H-Bridge

2 Upvotes

I am building a circuit where the motor (represented by 1kOhm resistor) is controlled by a 5V signal. The given circuit functions properly, however when comparing to other H-Bridges I saw on the internet I noticed some differences and am thinking is there something wrong here?


r/ElectricalEngineering 18h ago

Meme/ Funny 12 volt boredom.

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4 Upvotes

Ignition coil with ballast resistor (1.7ohm), 5 pin relay, 12V battery, proximity switch and 12V motor with a hex nut to trigger the proximity switch.


r/ElectricalEngineering 21h ago

Should I pursue a math minor as a EE?

2 Upvotes

I'm a second year EE student going into my sophomore year third semester. Because of unfortunate circumstances I have to retake phys 2 which set back my classes by a lot. Retaking phys 2 forced me to take gen eds that I would only take later and I'm stuck with the problem of not having enough credits to be considered full time next semester. I thought that using one of my tech electives would be smart so I could take linear algebra but I'd still be missing some credits. So I thought I'd just pursue a minor in math since I'm good at it but I just don't know if it's worth it. Im still in my second year and I might concentrate in either power or control systems. I take any advice really.


r/ElectricalEngineering 1h ago

Education Im a student, what is the best advice you can give?

• Upvotes

Im on my second year of my bachelor's right now and a project lead for IEEE at my school, what is the best advice that you can give?


r/ElectricalEngineering 2h ago

Jobs/Careers What is the best way to utilize time while looking for jobs?

1 Upvotes

I am a CE who just graduated in June, focusing on grid modernization software & power systems. I had an internship that ran from the day after graduation until the end of August. No return offer so I am unemployed now. I have had one interview so far after ~60 applications (I think most I am waiting to hear back on since they are more recent, interview was around my 15th application).

I am scheduled to take the FE in the middle of September, but what do I do after that? Any particular project focuses that will be most valuable?

Would appreciate any input on what I can best use my time for right now


r/ElectricalEngineering 2h ago

Does the Force-Current mechanical analogy make sense?

1 Upvotes

Hi guys, i'm not an engineer, just a technician. For the longest time i have had trouble getting an intuitive grasp around the basics of circuits: voltage, capacitors, inductors, etc. Then i read about the Force-Voltage mechanical analogy and suddenly it all made sense: Charge being analogous displacement, current to velocity, voltage to force, capacitor to spring, inductor to inertial mass, resistor to friciton/dampener. Suddenly the behaviour of the components made intuitive sense.

Then i read about the Force-Current analogy, and now i am lost again. Current acting as a force? Voltage as velocity? Magnetic Flux as displacement? Capacitance as mass? I am lost again.

Does that analogy make sense? Is there an intuitive way to understand it?


r/ElectricalEngineering 9h ago

Replacement Battery

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1 Upvotes

Trying to fix an old binatone phone. Base unit is working but the battery has died inside the phone.

Any idea where I might be able to source one?


r/ElectricalEngineering 12h ago

Equippotentual Bonding conductor AND a CPC?

1 Upvotes

It is my understanding as per BS 7671 that metalwork is either an exposed consecutive part or an extraneous metallic part, not both.

If it's exposed, it typically gets a CPC. If it's extraneous, it typically gets an equipotential bond.

E.g., exposed metal casing of an electrical appliance gets a cpc. Metal pipe or steelwork gets an equipotential bond.

Is there ever a scenario where something would get both a CPC and an equipotential bond (as in the two as separate connections)?

What about in a substation?


r/ElectricalEngineering 21h ago

Jobs/Careers Experiences transitioning to a vastly different industry

1 Upvotes

Would anyone be willing provide their experience and any tips on transitioning to a different industry?

I’m currently in the utility industry with a bachelors of electrical engineering and 2 years of experience, but i’m much more passionate about the idea of a position in analog design. I’m also open to other positions, but I’d like to feel like I’m actually contribution to the design of a product and doing more in depth engineering. At a utility, it feels a bit basic at times whereas the things I enjoyed in school were involved and dealing with microcontrollers, circuit design, programming, etc.


r/ElectricalEngineering 22h ago

Tips and things I may be forgetting for my Power System project

1 Upvotes

For my senior project I am working on a basketball electric wheelchair. I mainly am on the power system side and how we are providing power to the system. I have a rough outline for what the power system needs to do to power it properly and have added in a zener snubber to mitigate some back emf to the battery as it can only handle 4-6A going into it for charging. Here is a super rough draft of the power system, is there anything that comes to anyones mind that I may be missing for the main power supply to the two motors? I haven't sized my diodes or resistors yet as I wanted to see if there is something detrimental that I am missing before calculating those values to mitigate the back emf.

Rough Draft Below, any advice seriously welcomed!


r/ElectricalEngineering 8h ago

What basics should I learn before exploring different ECE domains?

0 Upvotes

im a first year ece student . Before jumping into any specific domain,What are the most important basics I should learn first?. for ex mathematics , basic electronics, programing etc .

Is there a common foundation that will make it easier to explore different ECE domains later? Also, what would you recommend learning during the first year?


r/ElectricalEngineering 9h ago

Should I buy a 3D printer?

0 Upvotes

I’m a college student studying EE that loves to tinker and make things. For example, I spent the last 2 years building ground and satellite sensors. I’m thinking of investing in a 3D printer in the next few months for personal projects.

Has anyone done this?

Do you have any cost effective and quality machines you recommend?

What else should I think about investing in materials for personal projects?

Thank you so much in advance


r/ElectricalEngineering 13h ago

Jobs/Careers How to get into sales?

0 Upvotes

As the title says, I feel like I don’t want to go the technical route when I graduate so I’m thinking of sales or something similar where technicality isn’t the focus.


r/ElectricalEngineering 16h ago

Pursuing a masters in EE from a Bachelor of Music Undergrad

0 Upvotes

I have an undergrad degree in Music Production and Engineering from Berklee and am looking to get a masters in EE.

Curious if anyone has any advice about bridging/pre masters programs, primarily in the US as from what I can tell these programs don’t usually offer visas in the EU.

Also, I’m currently in the first year of an EE HBO bachelors in the Netherlands, so by the time I would start a bridging program fall ‘27, I’ll have more of a foundation (calculus, physics, programming, etc)

Any advice is appreciated!


r/ElectricalEngineering 20h ago

Troubleshooting How does one change an 40yr old AC induction motor to a variable one?

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0 Upvotes

I am trying to change an old (40yrs) roller transport paper processor from its old Shaded pole motor to a variable DC motor so I can control the speed in which paper will process. I'm trying to emulate this old video but my processor is slightly different so I'm a bit stuck. My initial question is, am I replacing the whole (circled in white) unit connected to the pulley and belt? Or only parts, as I’m not familiar with this motor and the electrical components attached to it.. Let me know if there's another subreddit that would be best for this. thanks! https://www.youtube.com/watch?v=FUrH1isRBUM

Edit: corrected motor type


r/ElectricalEngineering 12h ago

Project Help AM transmitter design for 800kHz

0 Upvotes

Please suggest any working hardware circuits for an AM transmitter which works at 800kHz. I tried few circuit designs with 555 timer and opamp it works perfectly in simulation but in real hardware I couldn't get the desired output. It is okay if the circuit is transistor and LC tank based too.


r/ElectricalEngineering 13h ago

Education How much do your elective subjects matter?

0 Upvotes

So I am currently in my undergrad last semester from a third world country. I'd like to pursue my masters degree abroad with aids and scholarships. So as i was about to explore options (yup the visa problem is acknowledged) we are required to pick our elective courses for the next semester. My undergrad thesis is in the field of implantable antenna design but i haven't worked much on it yet. And I'm also unsure if i want to continue with implantable antenna in my masters. I'm a bit interested in embedded systems but i just have a quite medium level project on smart access control system implementing esp32 with a web server to grant any requested access with live streaming along with a manual password rfid card access and probably a position on our departments line follower car competition. However the elective course situation needs to be sorted first. I'm attaching my available options below.

There's 3 different pools from which we need to pick 1 each, where the 1st pool comes with sessional courses. The theory courses are themselves 3 credits each. I'd really appreciate any kind of recommendations you have regarding the elective courses selection. TIA

A. Pool 1 (theory along with sessional)

  1. High Voltage Transmission Systems

  2. Biomedical Signals, Instrumentation and Measurements

  3. Optical Fiber Communication

  4. Radar and Satellite Communication

B. Pool 2 (only theory)

  1. Smart Grids

  2. Photovoltaic System Design

  3. Multimedia Communication

C. Pool 3 (only theory)

  1. Power System Operation and Control

  2. Wireless Communication

  3. Compound Semiconductor Devices


r/ElectricalEngineering 18h ago

Jobs/Careers Internship interview with Eaton

0 Upvotes

Has anyone gone through an internship interview with Eaton before? I recently had a phone screening with them and felt pretty confident about it so I’m interested to know what to expect in the actual interview. This is for a power systems intern role.