r/ElectricalEngineering

https://preview.redd.it/ab4dyayfa0tg1.png?width=1144&format=png&auto=webp&s=dab8d0fc9dea1e9706503502422bd9072b4cb459

As someone who is relatively new to electronics, when do we use a buffer, and what is it useful for? As I understand for now a buffer is basically feeding itself back in, so v_o = v- = v+. I tried to draw 2 circuits, and I'm mainly curious what the difference is between the two, as the upper one gives the same current?

Appreciate it if someone could shine some light on it.

I’m a 19 year old EE student at a community college in the South Bay working toward transfer. I have hands on background in automotive electrical systems, sensor integration, and built an EV in high school. I’m trying to break into the field while still in school and looking for any advice on getting entry level experience or internships without a degree yet. What would you recommend for someone just starting out?

I am a Mechanical Engineer by training and graduated over a decade ago. I have been working on capacity expansion planning, economic dispatch, unit commitment and power system flexibility studies for about half a decade now. And I am intererested in expanding my breadth of expertise.

I have learnt about power flow studies, optimal power flow studies, etc. through self study and using simple tutorials in free programs like pandapower. I see that commercial software like PSCAD, PSSE, ETAP, Digsilent Powerfactory, etc. are more suited for power system studies. However, they are generally expensive. Is it possible to gain expertise in these kind of studies through self-study and freely available resources. What would you recommend for it?

I have some career and salary questions for Electrical Engineers, and for Engineering Managers.
Cleveland based. I'm in Design-Build, 3 YOE. in November I passed my EIT, and received a %30 raise after being persistent ($102,000/year, 2 weeks vacation now).
We were originally a team of (5) when I started working, post-graduation.
The team is now (2) people, consisting of myself and a new grad.

I passed the Power PE exam last month, and I know my salary should be much higher; but my company 'doesn't allow' raises outside of December.

They've been trying to hire for the Senior Engineer & Electrical Team Lead for several years. My current 'report-to' is a 70 year old Engineering Manager with a Technologies bachelor degree. My in-house specialty before and after the team size reduction is new commercial electrical services.

What should my salary be, and should I look elsewhere, or demand it in-house, and how would I back up such a demand?

• Imperial College London
• Seoul National University
• Institute of Science Tokyo
• University of Manchester
• Technical University of Munich

Any insight will be greatly appreciated

Would it be that way so you can see 220v?

Or would I push the switch TOWARDS the 220v to the right? And now you can see 110v? Im confused lol

Hi,

I want to study EE (not sure exact niche) and got into a few EE programs listed below. I am not sure which to attend. I know for a fact I want a master's, hopefully at a top school, and currently idk which college to attend. I am between price and prestige.
Could you guys rank the ones you think I should go to?

SJSU (Full ride + Housing stipend for 1st yr only) <- Would have to live with parents to make fully free (cause housing)

UCD (45k/yr)

UF (23k/yr)

NYU (100k/yr)

SCU (65k/yr)

Texas A&M (40k/yr)

UCSB (45k/yr)

UCSC (45k/yr)

USC (90k/yr)

Rn SJSU seems best financially, but I haven't heard many good things abt it or if it will get me into a good grad school.

What would be the perfect dimensions for it, what inductance to aim for?

Right now i have a 10 turn 5cm diameter 2-3uH coil. It feels like it has poor coupling? I tried heating various stuff, like nails, bolts, chainlinks, a spanner. They all get too hot to hold but never enough to glow even slightly red. Holding the object longer does not seem to raise the temperature further, although im not sure, dont have anything to measure the temp except touching it with fingers 😔.

For example electrobooms induction heater heated an alligator clip until it was cherry red, and my induction heater is basically 1:1 recreation with minor adjustments.

Resonant circuit capacitor value is 6uF, input voltage is 12v if that matters.

Heya. I'm designing a circuit that operates on 3V3 from a 5V input, which means I need regulator/converter for that voltage transition, but I'm unsure whether I should use a buck or LDO for 3V3.

The 3V3 powers a microcontroller as well as an extra LDO that provides a stable 1V8 for a sensitive analog IC. The circuit does not use much current at its peak (<200mA) and should use as little power as possible.

I was initially thinking a buck for the efficiency, but does its benefits outweigh an LDO at such low current consumption? But then I'm uncertain about the power wastage with an LDO.

Just looking for opinions and thoughts!

Hello, I’m wondering if it’s possible, and how, to tour a local power utility and even possibly shadow an engineer or just meet a few. It’s my career goal to work somewhere like this, and I’m at community college so it’s a little early for an internship. Just wanting to try to get my feet wet. Thank you

I'm getting bored of my "go to" apps when I have a few minutes to spare, such as LinkedIn (it seems that half of the posts are pro/anti Trump these days) and Facebook. I've seen ads for education/learning apps, such as Brilliant.org, as well as an Engineering learning app that I keep forgetting the name of.

Does anyone have any suggestions for such apps? I'm particularly interested in classics mechanics, Mechanical Engineering, or Electronics apps.