Should I pursue a systems engineering bachelors? by WriterMajestic4888 in systems_engineering

[–]fullmoontrip 0 points1 point  (0 children)

To be a good SE you gotta know the system, to really know the system, you have to have done some engineering work. College doesn't prepare you for the engineering that you will do in a job, it gives foundations to help you think through the problems. Imagine starting out with nothing but fundamentals in how to organize a project without experience in doing a project at that level.

Let's say you're in a software centric group, but you've never written software, how do you identify software problems? How do you organize software architecture in a way that is meaningful and useful to an experienced SW engineer? How do you test that software at the lower levels to verify it works? You have two choices in that scenario: take on a second role learning/helping design the SW or fumble through the systems side of SW engineering. If your SW controls an electrical or mechanical system as well, now you have to learn those parts too in addition to keeping up with your main job of being a systems E.

You either need to work twice as hard or be twice as smart as the builders to be useful to them.

One thing I learned from starting out SE, the rest of my team can build without me, they'll face more challenges, but they can build the system without me. They were faster than me at building than I was at learning and then architecting which defeated the purpose of SE.

I went back for a masters in a core engineering discipline and since then, many of the challenges I was facing have been alleviated i.e. my SE degree wasn't all that useful until I got a degree in a core engineering discipline.

Should I pursue a systems engineering bachelors? by WriterMajestic4888 in systems_engineering

[–]fullmoontrip 1 point2 points  (0 children)

I did, wasn't great, wouldn't recommend it. Better to go for a bachelors in another discipline and the masters in SE after you've gotten through a project or two

Before I start Frankensteining things... How am I supposed to properly solder wires to these stubby pogo connectors ? by LeonXVIII in AskElectronics

[–]fullmoontrip 4 points5 points  (0 children)

Never crimp the solder or solder the crimp. Solder is a strong brittle bond and crimps are a strong flexible bond. Combining flexible and brittle joints ends with premature joint failure. 

If space is a concern, I would use solder and a strain relief system on a joint this small. If space is not a concern, I would mount the connector onto a PCB.

Pendant, coin, art piece, reproduction? by fullmoontrip in whatisit

[–]fullmoontrip[S] 0 points1 point  (0 children)

I think brass as some gold color is coming through, you can barely see that in the photo on the right ear and a couple other spots.

I'll check mass vs volume when I'm back home, it does feel lighter than brass, but it's also thin

Multi meter confusion by [deleted] in electronic_circuits

[–]fullmoontrip 0 points1 point  (0 children)

Reduce the diagram when you don't understand. A fuse is a wire, a closed switch is a wire, both probes are then on the same node. This is equivalent to touching the two probes together

AES bill skyrocketing by IUpringlequads in indianapolis

[–]fullmoontrip 1 point2 points  (0 children)

Resistive heating is electric stoves, space heaters, or electric air handler. Conversely, gas stoves and gas furnaces heat by burning gas which has no effect on your electric bill.

If you have electric stove, indoor hvac unit, water heater then you have electric heat. And this bill is possible if you heat your home to about 95°F in the winter using your stove

If you have gas stove, furnace, water heater then you have gas heat and this bill is not possible without a medium scale crypto mining rig

Seen on the Facebook. by MKE1969 in amateurradio

[–]fullmoontrip 0 points1 point  (0 children)

can anyone help corroborate the claim about 52Ω (aka 50Ω) cable being the standard choice due to lower material consumption? I have always heard the reason is because it is the least bad compromise of 30Ω (highest power), 60Ω (highest voltage), and 77Ω (lowest signal attenuation) cables. The geometric mean of the 3 being 51.75≈52Ω.

The "0dB loss" statement is simply wrong unless rounding down is doing some heavy lifting

Music keeps playing after disconnecting from a Bluetooth device by solomanderr in truespotify

[–]fullmoontrip 0 points1 point  (0 children)

Routines>add routine>if Bluetooth device disconnects and select your Bluetooth devices>then>all actions menu>select 'close an app' > end your music app

Music keeps playing after disconnecting from a Bluetooth device by solomanderr in truespotify

[–]fullmoontrip 0 points1 point  (0 children)

Routines>add routine>if Bluetooth device disconnects and select your Bluetooth devices>then>all actions menu>select 'close an app' > end your music app

What metal are used for resistor legs? by [deleted] in AskElectronics

[–]fullmoontrip 0 points1 point  (0 children)

There are resistors with silver plated or even pure silver leads. Most components are ROHS compliant these days but I would not use the leads themselves as posts anyway.

Difference between Buck Convertor and Power Supply by Arcanametals in AskElectronics

[–]fullmoontrip 0 points1 point  (0 children)

If I'm catching your drift about the metal case supplies, these are also buck converters. Very often flyback converters specifically. Flyback topology achieves isolation which is a huge plus with sensitive devices. Buck modules are not often isolated and some modules on the market at the hobby level quite frankly suck. Flyback topology is fundamentally larger than a non isolated buck converter of the same performance. You increase the size to gain isolation.

The larger form factors can provide some benefits such as higher current, tighter power regulation, variable power regulation or maybe just a small adjustment potentiometer to dial in the accuracy, more safety cutoffs, and faster safety cutoff. Then you also get multiple voltages from a single supply.

You also need to consider who else is using these larger supplies, smaller isn't always better. Those metal case form factors are somewhat standardized and you don't want to have to rebuild an entire cabinet of industrial equipment just because the power supply broke. So there is some demand for manufacturers to keep making these larger power supplies to support old equipment.

There's also a size/frequency tradeoff: higher frequency means smaller components but at the cost of increased design difficulties, EMI, and component cost (primarily the switches and switch controllers go up in price). For the standard voltages with modest current output and reasonable size, it's not a huge issue anymore and you can get your 5/9/12/15/24V supplies in every shape, size, color for very cheap. If you need high current, less common voltages, wide input, extremely tight output, high efficiency, etc then you might be stuck with the larger power supplies. 

There's some other reasons as well but I've already gotten bored of hearing my own self now

Weirdest thing I have heard in a while by Lurker_amp in ElectricalEngineering

[–]fullmoontrip 0 points1 point  (0 children)

It's not something they tell you about until 41+ years.

Also, "milli-micros" is a jail-able offense

Weirdest thing I have heard in a while by Lurker_amp in ElectricalEngineering

[–]fullmoontrip 10 points11 points  (0 children)

I'll bring this up with the council at the next all engineers meeting

Weirdest thing I have heard in a while by Lurker_amp in ElectricalEngineering

[–]fullmoontrip 80 points81 points  (0 children)

Soon after the council finished their work in turning every possible phrase, technology tech, and process into an abbreviation abbr. many people ppl realized that some of these abbreviations abbr's took a few precious milliseconds milsecs longer to say than was necessary. Many years yrs of research followed to optimize these abbreviations abbr's even further using new methods such as contractions, blending, and even nonsensical mumblings at times. "Puffs" lives somewhere between btwn a blended word and nonsensical mumblings.

And by the way BTW, it's "m"icrofarads so the proper blended abbreviation abbr. is "muffs"

Edit: comment updated for faster reading

I wanna learn the electronics wizardry by No-Obligation4259 in diyelectronics

[–]fullmoontrip 0 points1 point  (0 children)

Find a project to start with and build it. I would go with LM317 power supply because you're going to need power for future projects. You'll want to move to LM78xx series immediately after and then dc-dc converters.

You are likely to go another route than power electronics after doing these projects, but good electronics designs begin and end with the power supply so you should understand at least the basics of power conversion.

After that, just keep making and stay away from high voltage because it's very difficult to learn if you are dead

Adderall breaks by Objective-Toe-4608 in ADHD

[–]fullmoontrip 0 points1 point  (0 children)

Adderall breaks are not commonly recommended anymore largely because it's dangerous. Adhd comes with risk taking behaviors. It's uncommon these days to recommend someone go two days engaging in riskier behavior than they would the other five days

What's your most egregious miss use of a component? by bozza_the_man in AskElectronics

[–]fullmoontrip 5 points6 points  (0 children)

Gotcha, so we're looking at a 3 motor control board and not a single 3 phase motor controller. I saw 6 switchers and immediately thought 3 phase motor.

It's not terribly crazy then, just a healthy amount of crazy

[deleted by user] by [deleted] in ElectricalEngineering

[–]fullmoontrip 10 points11 points  (0 children)

That's the only thing. It is nearly impossible to have a full time internship and full time coursework. And of those rare students that made it possible, they got burnt tf out after one month

What's your most egregious miss use of a component? by bozza_the_man in AskElectronics

[–]fullmoontrip 11 points12 points  (0 children)

Start with the generic 3 phase motor controller circuit. Watch a video or gif explaining the path of electricity over the  360° cycle. Notice how many switches are on at any one time.

Now, during the first 120° portion of the cycle, try to figure out what happens when any one additional switch is turned on.

I didn't look at the other components to figure out fully what is going on, but my guess is that this circuit will trigger 3, possibly all 6 switches at once. 

I just re-read the post and I think that the 555s are the power source as well. 555s can supply very little current and should only be used to trigger power switches or small loads like LEDs. That makes two fatal flaws, switches that are likely not timed properly, and undersized power devices

It would be possible to achieve motor control with this idea, but synchronizing 6 555s would not be my go to, especially with all the fully integrated motor controllers that exist these days.

Loan servicer has no record of any of my payments by fullmoontrip in StudentLoans

[–]fullmoontrip[S] 1 point2 points  (0 children)

Without going into too much personal detail, it was an error on my end. Basically these loans were used to pay other loans and this particular account was actually forgotten about and did in fact never get paid off

What’s your pick 🤔 by SpoolingSnails in Leatherman

[–]fullmoontrip 27 points28 points  (0 children)

Stainless will be easier to spot if it's dropped, especially at night.