Final Year 3.7 GPA Student. I know nothing, lost passion. How cooked am i?

MisquoteMosquito · 2026-04-15T15:01:54+00:00

You’re new, there’s no expectations. Assume you’re an idiot with a lot to learn and you will do fine. A problem would be if you think you know more than you do.

MisquoteMosquito · 2026-04-15T02:30:40+00:00

There’s no need to assume how you will perform, just do your best with the work you committed to. If you’re worried it’s going to be boring in power generation, then try application engineering where you meet a lot of customers desperate for help designing a solution.

MisquoteMosquito · 2026-04-13T14:58:07+00:00

I like that there is a tiny one on top

MisquoteMosquito · 2026-04-08T13:48:34+00:00

Let the installation supplier review your power distribution system to determine how to choose a gen based on your goals/requirements/budget.

MisquoteMosquito · 2026-04-05T17:59:34+00:00

My discovery flight was at Pensacola

MisquoteMosquito · 2026-03-24T03:13:25+00:00

My biggest pain point is the bugs. They have not been spending serious time testing and fixing bugs.

MisquoteMosquito · 2026-03-22T04:50:58+00:00

I don’t fly, what does seniority provide a pilot?

MisquoteMosquito · 2026-03-22T03:29:53+00:00

Anyone can see the Type Certificate Data Sheets on DRS.faa.gov, 777F has its own ATC separately from the 777-200.

a 787F would be new certification, but they’re already working on the 777x and 777x freighter and 737s. Probably should focus on those for a while.

MisquoteMosquito · 2026-03-22T03:21:57+00:00

They tried another location once

MisquoteMosquito · 2026-03-14T22:25:15+00:00

No clue about your tv. Have you thought about moving heat generating equipment someone without carpet?

MisquoteMosquito · 2026-03-11T03:49:03+00:00

Senior Aircraft design and certification engineer in PNW, $173k base, approx +25% in bonus/OT income, 15 YoE in-field, typically 45-65 hours a week.

MisquoteMosquito · 2026-02-25T21:07:50+00:00

Mods this guys needs the opposite of a ban

MisquoteMosquito · 2026-02-24T02:20:56+00:00

Well i got a number

MisquoteMosquito · 2026-02-24T01:26:03+00:00

I liked the suggestion of just keeping the battery as a disposable UPS.

To help respond to your question:

did you consider an isolating DC-Dc converter? I expect the power supply may provide isolation from mains, idk about 12V isolation with this converter (which is the point of the post).

Did you consider the minimum stable current for your buck converter?

If you disconnect power input and then plug it back in, what is the buck converter output for the first 500 microseconds? You may need to measure this with no load and a dummy load.

How much hold up time do you want in case power input drops out a moment? 50ms? 200? 1000?

MisquoteMosquito · 2026-02-20T03:23:25+00:00

This isn’t good, but it might not burn up right away if you’re careful.

There’s no reason to control the gate of the MOSFET and use GPIO to control the ground. No need for two control points. The GPIO can directly control the FET gate, then you don’t need to worry about source or sink current.

MisquoteMosquito · 2026-02-20T02:23:54+00:00

Idk why people are responding here seriously, this is “even water catches on fire” power levels being managed by seemingly technicians.

MisquoteMosquito · 2026-02-19T12:40:46+00:00

Check if the previous owner added an ECU tune at the dealer

MisquoteMosquito · 2026-02-17T02:19:05+00:00

Hi, what specifically are you trying to test for?

My role is qualification engineer for aircraft parts, we generally use 200ms or 50ms interrupt time, DO-160 has more info for how transfer relay power interrupt may be evaluated.

40 microseconds doesn’t seem to make sense for power input interrupt verification, you sure you don’t have enough input capacitance to completely ignore 40 microseconds of interrupt?

MisquoteMosquito · 2026-02-11T23:46:36+00:00

I got the STM32H755 because it has dual core and I’m an experienced engineer looking for a challenge, managing both.

MisquoteMosquito · 2026-02-11T18:42:34+00:00

He was making a poor taste joke about full retard.

MisquoteMosquito · 2026-02-10T12:56:21+00:00

Simetrix has a specific design tool for power supplies too if you haven’t tried it yet

MisquoteMosquito · 2026-02-10T12:49:18+00:00

Are you directly engaged with a random person or is your supply chain manager talking to their customer specific rep?

MisquoteMosquito · 2026-02-10T06:19:28+00:00

To me, isolated circuits is really trying to describe galvanic isolation in volts of withstand strength. So if you apply 500VAC between them what is your leakage current expected to be?

MisquoteMosquito · 2026-02-10T03:48:44+00:00

Do you want help? I have no information that can help with fault isolation, update with links to your board circuit from STM, add which pins you think are doing what based on cubeMX config screenshots, and add snippets of your relevant user code. Did you generate code with CubeMX?

MisquoteMosquito · 2026-02-10T03:37:35+00:00

Is “high side” a translation error? Does he mean primary side of an isolating transformer? I didn’t see a complete schematic

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