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My scenario is this: radio equipment controlling an overhead crane inside a steel mill. Specifically it is used for transporting melting pots. With the current, unfortunate installation, the antenn...
First I noticed that clock begins before chipselect gets pulled low on SPI. After eliminating potential sources I started to suspect the scope. I connected all 4 channels to function generator at d...
It appears you want a positive current source with the following specs: 0 to 28 V compliance range. Up to 100 mA, adjustable via 10 bit or more digital value. 36 V supply is available. The diss...
A bipolar junction transistor can be used as an amplifier, in which case some parameters of interest are $\alpha$ (the common-base current gain, equal to $I_C/I_E$) and $\beta$ (the common-emitter ...
Can someone actually do anything about this? Yes. The previous case you mentioned had already been dealt with; this case has also just been dealt with. The votes in question have been invalida...
I have proposed to fix a threshold of 100 pts to have the rights to downvote, which solves partially the problem of massive downvotes by trolls creating new accounts. This suggestion seems to have ...
Considering that the same manufacturer has models specifically for plated holes too, it probably matters. One thing that I noticed in looking around is that the models for unplated holes have a kn...
It's still happening: - Can someone actually do anything about this? This has happened on stack exchange before but this is ridiculously more far fetched than what has ever happened there. Do y...
How is it possible to generate 500V on a trafo secondary given the 1:1 ratio? In a DCM flyback transformer circuit, the secondary winding is being used as a pure inductor. So, once the primary...
As far as I know from my own experience, CAN and at least 10 Mbit twisted pair ethernet both care about the impedance between the two wires, not so much from each wire to some common ground. This ...
You are asking about this circuit and want to know whether this is a radio transmitter/receiver system. No, it's not. First, everything is DC. There is no radio propagation at DC (0 frequency...
You have a 6 layer design for controlling 24V brushed DC motor, galvanically isolated voltage rails(24V and the rest) and your question is how to separate them properly. There is no further reason...
I am not familiar with that standard specifically. However, usually standards will have some multiple for effective separation distance inside a PCB versus across air. One standard I remember spe...
As far as I know, there is no standard format, at least not one supported by many packages. What I would look for instead is the existence of converters. Check the ability of a tool to export or ...
Are reference material requests on-topic here? For example, I am looking for a textbook discussing hydrogen fuel cell design, preferably oriented towards something that could be made in a high sch...
Inductance is defined by the shape of the coil, the area of the coil, the number of turns in the coil, the distance between turns, the ferromagnetic permeability of material within (and surrounding...
One common 12 V DC power connector is the "2.1 mm plug": 2.1mm inner diameter, 5.5mm outer diameter. Jameco says it is one of the most common DC power connector. Several Sparkfun power connecto...
In all descriptions of how (non-FET) transistors work I've seen, there is an inherent symmetry: There's either an n-doped layer between two p-doped, or a p-doped between two n-doped, and the descri...
Quite often, I find myself knowing the technical term of an electronic component in my native language, but not the proper English term. For example when translating a manual or other technical doc...
I'm too new to this site's mechanics to judge whether a new category is warranted or not. However I really welcome the idea of supporting design reviews (both HW and SW) to a larger extent than si...
Modern CAN transceivers like MCP2561FD that support CAN FD with high baudrates come with an optional feature called SPLIT, which is to my understanding a reference voltage output pin used to give a...
When using through-hole ("THR") connectors on a multi-layer PCB, I frequently notice problems with the ground pins, when these are connected to the ground plane(s) through various "thermal relief" ...
To expand on Olin's answer about power dissipation, one theory is EX/ATEX qualification for explosive environments. This is likely needed for these kind of cars, given the massive energy in those b...
I was hiking around the Berkshires in western Massachusetts yesterday, and came across this metal panel where some power lines were crossing a ridge: The panel is a few meters wide, and appe...
