Marked 50% off $45. Couldn’t decide if I wanted it, then they announced everything left is a buck. Snagged this and a bunch of old RF/comms books for free. I’m a happy man.

Title.

I got really picky with the job search this semester as I wanted to work on Analog or Digital Electronics and only applied to "Hardware" jobs. I gave up my return offer in another industry (construction) and I recieved 2 interviews for the summer (AMD and another startup). Unfortunately, i didn't pass the interview for AMD and was unselected for the other job.

I tried to do research but my marks are a tad low (<80 avg which is below the cutoff for research).

I have 2 previous internships, 1 in the MEP construction industry and 1 in mobile software development

I'm a sophomore btw

Hello everyone,

I am looking for some clarity here, and I apologize for my bad English is not my first language.

So in class we had to resolve this circuit, using Laplace and then compare the input signal vs the output signal, in this case is R2.

I found the output voltage equation for it, I've repeated it multiple times and get the same result. (This is not my favorite signature I must say) But when I use simulation, the magnitude is difference from my solution 2.55mV Simulation vs 3.16mV Theory.

I want to see if maybe I am doing something wrong of if I am actually correct, but I am not taking into account something.

Appreciate it

I have played with relay boards and other preassembled circuit board.

I am interested in a board that would connect to my smartphone and act as an indicator remotely.

A simple description would be:

I take a simple auto circuit tester for 12v.

When circuit is energized I get the light insight lighting up.

So say instead of a light I swap in a circuit board that connects to my phone wirelessly.

On my phone is a simple looking panel. When the circuit board shows energized it will relay to the phone that is the case and there would be either a box that lights up a color when energized or says on when energized and off when not.

Looking for something like this in a board that can do one or more channels. Let's say it works off of 12v DC input or a DC range.

Is it out there? What are they called.

I maybe could use a relay replacing the buttons on a a remote for a remote and relay setup like This so that the remote is connected to the circuit tester with modifications and the relay board is connected to a light panel. But is there a setup where I would not have to modify the remote relay to work backwards. A ready made solution. Someway wirelessly maybe going as far as Bluetooth or wifi.

As an incoming international student, I’ve always admired the development of communication tech in the US. My interest is in latest 5G/6G communication system like V2X, ISAC, etc. And decided to pursue my MS in ECE in the states this fall, hoping to eventually become part of the American communications tech industry.

However, i recently heard that many jobs related to the latest communication tech require security clearances, which means it will be impossible for an international student like me to seek for related positions.

My question is that is this thing really true?

My original plan was to take courses like wireless & digital communications, coding theory, information theory, DSP and probably couple of courses related to network and ML/DL, focusing highly on communications.

Should I consider a different path, like firmware engineering or MLE at companies that develop communication products? If so, would it be better to take courses like RTOS, embedded systems, VLSI-related courses instead?

Any suggestions? For context, I have a relatively weak background in hardware, such as circuit design and RF. 😞

ITS A 7408 SERIES AND GATE IC, THE PUTS ARE BOTH LOW AND THE LED IS LIT UP????

I'm new to electronics. Basically Im trying to power a 12v DC fan that I can turn on and off with a Raspberry Pi. I have connected all the wires to where they are supposed to go to and the OUT is not getting any power. There is a small blue light on each channel and when powered by the Raspberry Pi it turns on. I'm assuming that means it's sending a signal to turn on the MOSFET or let power through. But there is still no power going to the fan I'm trying to power which I plugged into OUT+ and OUT-. I have a 12v power supply which plugs into DC+ and DC-, when I connect the fan straight to the power supply, it spins up so I can't be something wrong with the fan.

I can’t get the right result. The result should be Ia=10A.

I’d like to build a Button clicker that can flip my light switch on in the morning by itself. I rarely wake up to my alarm and I’d like to build a clicker that turns on the lights When my alarm goes off, but I have no clue where to start.

/preview/pre/6s9x4bdin4te1.png?width=1002&format=png&auto=webp&s=8f3099de32b9f4115e71eb45b55c27fcf3d02e05 Edit: c4=1F

Can anybody explain this cordless work light I have? It is nice and bright if I plug it into an outlet with a 5 volt 1 amp DC adapter. I can charge it for hours and it does store energy. It holds a charge really well, it seems, even too well. Slight issue though. It can run all night but it’s super dim when running on the battery. (I haven’t tried charging it while on, though I suppose babysitting it for that charging is the next step to try). It did come with a car charger adapter and USB to barrel jack charging cable but no block. I know this isn’t top quality equipment but still.. Can anyone explain what’s going on and how to fix it (if possible and assuming no user error)? I’d rather a functionally useful light with limited battery time than eternally usable one that makes tasks possible but unnecessary difficult. Diving further into it, there are several questions I have about the logistics: - Why is there a voltage range and a wattage maximum here, which therefore means I have to keep my amps measured properly? - How is this supposedly working happily on AC and DC? (I foresee band jokes ahead) - How would one limit the output of a charging battery? - Where do you find a 5 VAC barrel jack adapter or block for the included USB charging cable? And cig lighters only output DC, right?

I’ve included pics of it plugged in running on the battery, the 5 VDC charger and the specs listed on the device and its box.

Tangentially, what makes a mechanical device AC or DC dependent? I know that, for example, DC applied to neon lights will move the charged particles to one end of the tube and you’ll only have one side lit. For mechanical devices, must there be magnetic parts in the device doing the work off of and tuned to the oscillation in the electrical current?

Thank you in advance ☺️

So, I'm currently a math major at UT Austin, but I'm looking to become an electrical engineer upon graduating with a bachelors. I am adding an engineering certificate on to my degree, but it doesn't allow me to take any specific EE classes.

(The way that UT Austin is structured I can not switch from math to engineering without essentially reapplying.)

Does anyone have advice on making the transition? Are there certain internships or skills I should build up?

Any advice is awesome and appreciated.

Hello everyone,

During my undergraduate degree I was enrolled in the co-op program and ended up at the company that I am currently working at full time, long story short, this company offered me a full-time position after graduated from my undergraduate studies and I am now approaching a year working full-time as an entry level systems engineer.

My current role involves of a lot of system level testing but I really don't have any exposure to the hardware side of things at all, there are very few times where I find myself soldering or even looking at a electrical components in general, which is I would like to transition into some sort of entry-level hardware role because I was always drawn to electrical engineering for the hardware aspect, which is something that I am not getting enough of in my current role and I feel that if I stay in this role for a long period of time I would lose many of the concepts and technical skills that I have developed and would like to continue to develop from my time in school.

Will this be a difficult transition and how would you suggest going about it?

I need to design the clipping circuit which is attached to the double pulse test such that when lower Mosfet is conducting, I would get Vds on at the output of clipping circuit. When the lower Mosfet is off, clipping circuit will activate and would give the clipped voltage of DC link for example 8V at the output. We need to compare different clipping circuits with their advantages and disadvantages and then decides the one which is better suited for our needs.

Probably not the first to think of this, but:

I decided to drop some flux-covered nasty PCBs into my Elegoo Wash & Cure Station just to see if the IPA would dissolve the flux from my boards

It worked great!! The board came out COMPLETELY clean. This was for liquid flux, so the gooey stuff may not work as well

I ran it for ~20mins and it was squeaky clean!

For the context I have a BSE in EE and have been working for a printing manufacturing company for 4 months. Boss told me he wanted to promote me to a real engineer position and he'll pay for my further education as long as I know what I want to focus on. It sounds like he wanted me to get a certificate/knowledge rather than a Master's degree.

My company does manufacturing on printing machines/parts and afaik we mostly use CAD, PLC programming, mechanical assembly, and electrical wiring,... Right now I'm only a technician working on the last two categories (though I have an Engr degree). I apologize for this unclear question but I need some guidance and insight. I have very basic skills when it comes to java, assembly language, and Solidworks, but Zero prior knowledge of CAD and PLC prog. So what should I be focused on learning in order to be useful in this kind of industry? what else do you think is useful (I heard about Revit but not sure)?

Hello everyone. I am a proud owner of the Surface Go (model 4/64) first version purchased now 5 years ago. In September I will start university and will begin commuting from my house to the university (that's about 3 hours usable per day by train).

At the moment I have no intention of changing devices (due to university fees) so I have to adapt with what I have. The major is Electric al Engineering and the main use of the Surface would be to take notes in class, read some pdfs and surf the web a little (alternating between Moodle and Netflix). I also intend to play a little, but don't worry, only retrogaming (for example GTA 3) which is not a problem for go.

I start from the assumption that I abandoned Windows 10 because it was not optimized for tablet mode. So I installed tiny 11 (made by me with the tiny11 builder to put the 24h2 version and to keep the home license) to have the 11 version lightened for the hardware I own (4 gb of ram and 64 of internal). Many say that this model can only be used as an ornament but I find it extremely comfortable and light to carry around. Also, even if the battery has over 300 cycles, it continues to hold over 5 hours of battery (even if I don't really care because both on the train and at university I have a socket and eventually I buy a huge power bank to connect). I also already own a bit of all the MS accessories: in fact I have the pen (the model before the Slim), the type cover and the Surface mouse ideal for always carrying with you. I also have the original HDMI USB C adapter and some Chinese USB C USB A adapters.But I'm here to ask you a few questions:

- I already use edge and it seems more optimized than chrome for hardware but can I make some particular changes to optimize it further?

- I'm planning on buying one of those paper effect films, do they make sense?

- I also plan to buy an Xbox One controller to play retrogaming on the train, does it work?

- are the set of tips for the surface pen really useful or is the one already present enough

- what software do I use to take notes? I saw that many at the university here use goodnotes, do you have anything else to recommend?

- I found a surface dock with power supply for 15 euros, does it make sense to buy that too and replace the Chinese adapters?

- Do you have any other advice for this machine?

Also, in a few years I want to change it but I'll wait for some other generation of Surface to come out and the next choice will probably fall on a pro, but at the moment I can't.

Looking to make my own plow connectors and want to keep everything as OEM as possible as we have a medium sized fleet. Can't find any information on these pins, any guesses?

I am looking to major in electrical engineering and I think a career in robotics would be really cool. I am curious though about the types of robotics careers I could get into with a degree in EE.

I'm turning 39 this year, and I feel burned out from my teaching job in Special Education. I want to change careers and pursue Electrical Engineering. However, my qualifications and background do not align with the admission requirements of the school I am applying to. I've been refused twice—do you have any tips?

Looking for a good academic level book that delves into full bridge converters and full bridge converters with a phase shift.

I went through a number of books and they skip the PWM phase shifted full bridge, instead focusing on resonant tank full bridges (LLC’s, etc).

Would be great if it covers the PSFB with voltage or current doubler output and synchronous rectification.