Electrical Engineering

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W5VO

01:53

The problem with dummy chips is that it can be very difficult to make sure everything is connected correctly

Are you going to have a microcontroller? Those come in qfn packages and are much cheaper

2 hours later…

Asmyldof

03:41

@W5VO HF PLL with ground paddle

Asmyldof

03:57

@ThePhoton Our Ireland trip is definitely off

Got work to do for very good billables those weeks

Allenph

04:25

@W5VO I was looking at ordering some of those. I have a bunch of Pics laying around I was planning on using.

I had that same thought.

Asmyldof

Aaah. I get it now

Did I mention I'm sleep deprived?

Not that that's an excuse

Butttt.

Sleep time anyway

KingDuken

04:54

@Asmyldof you should try some melatonin medicine, that stuff puts me to sleep extremely quick... that or some alcohol

and i'm talking about the melatonin that isn't a hormone

but rather the medicine that affects the hormone... for some odd reason it has the same name...

3 hours later…

Daniel Tork

07:58

@Asmyldof What is the best university regarding electrical engineering in the Netherlands?

Can you make a "top 3" ?

Asmyldof

08:21

@DanielTork Depends on the subject

@DanielTork You mean, list the three that there are?

Asmyldof

08:59

@KingDuken Can't have stuff that works on any hormones and chemicals/alcohol don't affect my consciousness until I'm at severely dangerous levels

I'm one of those guys for whom the anaesthesiologist needs to pay attention to signals every second for it to not go wrong either direction.

2 hours later…

Zeta.Investigator

10:41

Why is there a 33rd pin in this 32 pin package?

abdullah kahraman

It is probably the ground pad under the package

Zeta.Investigator

I googled that, so there are arbitrary "k" centerpads below QFN32

@abdullahkahraman Yeah it seems so

abdullah kahraman

Zeta.Investigator

@abdullahkahraman Thanks, I guess its use is because of heat distribution?

abdullah kahraman

Yeah, mostly heat I guess

Daniel Tork

11:49

@Asmyldof The first three best universities based on their electrical engineering courses performance

2 hours later…

Asmyldof

13:45

@DanielTork So... you want me to tell you THE three cities where there is one then? Enschede, Eindhoven, Delft, no particular order.

parvin

I've got a question about current flowing inside an open circuit

Q: Why does not current flow in open circuit wire connected to a closed circuit?

I know that current flows from higher potential towards the lower. I was wondering why it does not flow towards point "a" and why isn't it divided into "i_y" and "i_x"? And if it happened, it would stuck inside the open wire at point "a", and current "i_y" would head back towards the source. Here...

there's another question I have, does current flow through a source? if in this photo, there was a current source instead of open circuit, would the current i be divided into i_x and i_y ?

7 hours later…

PlasmaHH

20:35

Why is it always that the people asking questions think that people that want to answer are the ones that should spend effort to figure things out instead of just giving the facts?

-3

Q: 2-Phase SMPS over-current protection false trigger

I'm attempting to repair a PCB that has a 2-phase switching power supply. The regulator sends two PWM signals to two external switches, each has two integrated MOSFETS, and each has an external inductor. The over-current protection is implemented using inductor DCR, measuring the voltage drop a...