Posts by Olin Lathrop
I see that manassehkatz has already given you a good answer and plausible explanation for what you observed, so I'll fill in a few other points. Your battery is 5 years old, so is getting to the p...
Not much. If the wide power trace is good enough to handle the current, then it's, well, good enough. If you really don't have anything else to do with the copper space, then you might as well ma...
You are right in that the gain at 80 MHz is clearly not 100. Both the initial marketing points and the graph seem to agree on a gain⋅bandwidth of 45 MHz. There does appear to be a slight kink in ...
A quick intuitive way of looking at this circuit is that the voltage source, L1, and L2 can be thought of as a lower voltage source with a single lower inductance in series. This is the same as fi...
If I use this connector at its rated working voltage, does that automatically mean I am not complying to IEC 62368 safety standard? The pattern you reference seems to assume one side of all eight ...
There is no direct way to determine whether the PIC is connected to a CAN bus. Part of the problem is that the PIC never directly connected to the CAN bus anyway. There is a transceiver chip like...
3.6 V is not the absolute maximum voltage. The table you show explicitly says "Recommended Operating Conditions". Therefore, running the chip up to 3.6 V is perfectly fine.
If this is a contrived homework problem where they are looking for an "exact" answer, then you have to solve a bunch of simultaneous equations. However, that would be neither useful nor anything y...
The flashing-light frequency shall be 90+/-30 times per minute. I don't know what could be more clear. This spec says that the light must flash 90 times per minute, ±30 times per minute. In othe...
I'll take it that you want this circuit to actually work, not just appear to work in some software simulation. In that case, it's about the circuit, not the simulator. A simulator is just one too...
It's been a while since I did 1-wire, so I don't remember the current levels. R18 seems rather high for supporting the minimum required voltage at the maximum possible current. Let's say for sake...
Your controller is too fast compared to the plant (the thing being controlled), thereby causing instability. The most obvious culprit is the 50 kΩ resistor between the controller output and the FE...
Now that you've supplied a link to the product, I can provide a different take on this affair. Your "UPS" is an Amazon Basics model described at https://www.amazon.com/gp/product/B073Q3BSPG/?th=1....
It looks like you've sort of re-discovered a motivation for Fourier analysis. The difference between looking at slope versus frequency content is exactly the difference between time domain and fre...
Such a domed button is usually called a "membrane switch", at least here in the US. As you say, the small metal bubble makes contact with something underneath when pressed. Advantages of membrane...
You say the only thing that will be powered by the ±12 V supplies is a comparator. The first thing I would look at is whether you really need the comparator to run from that voltage range. Presum...
I want to know why the top-of-the-line CPUs and GPUs from Intel, NVIDIA, and AMD are all bragging about the fabrication process (7nm and 5nm) and trying to be consistently smaller. It's marketing ...
Since you seem to be asking about whole batteries, not individual bare cells, dangerous effects should be limited. Consumer batteries made from lithium cells almost always include integrated prote...
I don't know about "best practices", but I make all my own library parts. I use Eagle, and the library parts that come with Eagle are quite inconsistent in things like pad shapes, what is shown on...
the original question is interesting and deserves a technical answer So go write one. That's your call, just like it's mine not to. We are all volunteers here, and are therefore never obligated ...
Safety of medical devices is not something you should be asking random folks on the internet about. The rules are stringent, for good reason. The clearance and creepage distances to line voltage,...
I have a similar problem when debugging firmware on a dsPIC that drives a flyback power supply. The switch isn't designed to be on for very long, as eventually the inductor saturates. Usually the...
The two ICs you reference don't do the same thing. The first sentence of the first datasheet says: The MAX16141/MAX16141A ideal diode controllers provide system protection against a variety of sy...
is the "X" point floating when there is no 12V applied ? Perhaps over a limited range, depending on whether the 12V line is left open or connected to something other than 12V. Case 1: The volt...
The first circuit uses the FET in follower mode. That means it works as an impedance buffer with a gain a little below 1. Such configuration can be useful to turn a high impedance signal into a l...
