Random guesses: Cc3 too large; check output ripple; check SW voltage on scope for right voltages... (not sure if voltages are reported as DMM or scope measurements)

It's using a RC network in parallel to monitor the inductor current? How well does that work (when it's working)?

inductor is saturating?

does it actually regulate to that voltage, or is that where it "ends up"?

Hello

am I getting an old grumpy fart?

sigh

or do students not learn about component tolerances any more?

@ThePhoton Didn't check the chip, but might it be a shorted or near shorted COMP capacitor?

Is it giving PGOOD output?

@jippie Yes

@jippie you mean since you are old and grumpy, people should be more tolerant of you?

Quick question, all. Do you gain most of your EE knowledge through a bachelor's degree, or through experience? I feel like I'm not going to be learning shit compared to what's going on in this chatbox.

Or was it just more advanced education? i.e. Master's/PHD

@JonSnow imho studying is to learn how to learn, and get an overview of your tools. when all you have available is a hammer, everything is a nail. if someone gives you a good tour of the toolbox, you might not use everything, but know where to start. and then you gather experience, which its all about

@PlasmaHH That was actually a great analogy. Thanks for that piece of wisdom

@JonSnow if that doesnt work, you still have the hammer and can start a carpentry career ^^

@JonSnow experience and experience driven by education

education can be an eye opener, from there you go on

as a matter of fact I've always been a bit disappointed that a lot of electronics knowledge I had before I started studying it, was never taught in school and yet this knowledge comes in handy every time I want to understand circuits or try to design something of my own.

@jippie like "dont toucht the tingly end of a mains cord" ?

@PlasmaHH I wasn't grumpy like you are now at your age :-p

@jippie I was born that way!

@ThePhoton What about electronics.stackexchange.com/a/193171/54580

Whoah the logo changed from an über-electronics nerd dot matrix LED display to a power mechatronics diode on a dish

and just as I was saying, they made a font that makes I and l the same

@PlasmaHH They're clearly rendered differently on my screen.

@jippie here in the chat or in questions and answers?

See, the left one is clearly an I

cleraly...

/slap

the odd ones are I the even ones are l

thats even odd

@PlasmaHH are you the batteryriser guy?

@jippie would I be complaining to get decent equipment and have no money when I was?

you're born like that

@RespawnedFluff, that was a different problem I had a few weeks ago.

@W5VO, unfortunately after I tried reworking one of the feedback resistors, it looks like the switch nodes (FET gates) are not switching any more.

@Asmyldof, COMP cap I have checked, PGOOD I didn't think of.

Going to take another look at the design. One question is if something could go wrong with very light load.

Hi guys

I don't know why everytime I look at the avatar of this guy, I think it's a bra while it is a mustache. :)

I was just thinking, if you had a pretty accurate non-contact means of measuring a short distance (<2 inches) that has a fast enough update rate (maybe ultrasonic), could you send a PWM signal through an electromagnet and make a metalic object "hover"?

Using the proximity sensor to keep the metalic object the right distance away form the EM?

@BrandenBoucher You mean like the toys that float in thin air?

@BrandenBoucher that would be cool or maybe use a feedback from the back EMF caused by the object itself in the field?

erf, SPI headache

getting bit flips at consistent positions

no relation to chosen spi clock rte

@jippie, ya!

@EwokNightmares, that's a possibility too.

@jippie, except instead of something on the bottom, pushing up, it could be on the top, pulling up.

hm, all replacement elcos I have are a bit longer than that one that was originally built in... did I miss the latest generation of everytime smaller caps?

Yesterday evening I arrived without a UK converter plug, the one thing I forgot

But I did bring my Fluke 298

twitter.com/Asmyldof/status/651397313169096704

Tonight, same problem, but because nothing to do at night

<3 being an engineer

@Asmyldof That'll show all the people claiming how great UK plugs are with all their fancy safety features.

@ThePhoton I started with the problem my phone charger didn't go in because of the safety feature

So then I took out the probe

To push down the ground tab

And then I had to solve my laptop issue.

And I was already holding the probe

So in a way, this whole solution is only because of the safety feature

:-)

Don't like the new icon

Probably should have paid attention to all the meta posts last weeks

@Asmyldof Not bad.

But the cathode lead is longer than the anode lead.

for some reason

@ThePhoton Doesn't stand out at all. I'm going to be forgetting about it a lot now

@Asmyldof You spent a lot of time contemplating the old logo?

@ThePhoton Not so much. But it stands out between the other tabs

Stood

@Asmyldof I'm still seeing the old icon on my chat tab

I'm afraid to click refresh

Anyway, if that's what you meant, that icon is kind of silly. What DIP IC has a big red light in the middle of it?

It was kind of like the kind of chip you'd expect to find if you took apart a Dalek.

(Because the Dalek was designed by a TV producer)

@ThePhoton Which is another kind of reason it was awesome :-P

sure, it's silly, but the replacement just doesn't capture any imagination or attention

You know what it is, or not, and the contrast is very limited

But, as I said, should have not been u-booting and reading Meta if I care that much