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I know of a designer that didn't add ESD protection on a mass manufactured product in the field. They had to replace almost 10 thousand units, because they kept popping in certain low humidity and ...
I want to sense 3 different states in the same mcu pin (GND, Hi-Z and PWR). PWR is typical +24V but I would like to have a wide margin from +17V to +40V just to be safe. The values can change but ...
Serial communication protocols require synchronization of the clock of the connected devices. From GR the time elapsed for the satelite is different than the time elapsed for us here on the Earth....
The difference between your two options is which polarity the input floats to when left open, and whether there is an overall inversion. Adding the inversion in the firmware would require one more...
Feeding the watchdog from an interrupt service routine is indeed a bad idea, usually. It depends on what you are really trying to protect against. The purpose of a hardware watchdog is usually to...
The problem with refreshing the watchdog from an ISR is that in case the main program hangs for whatever the reason, the ISR will keep living and could keep the watchdog alive, effectively blocking...
I stopped trying to read your equations after the second undefined term. In general, start analyzing such things assuming switches, diodes, and the like are ideal. Also consider continuous and di...
My answer from another place: - It's best to use a 4 layer board looking at the tracks you have on your ground-plane side. But, if you are really insistent on using only two layers (why?) then do...
Partial answer awaiting more specs Your question can't really be answered until we know how accurate the resulting solenoid drive levels need to be relative to the 0-10 V input signals, and how fa...
Yes, we should add how to use MathJax to the help for this site. Unfortunately, there are several things that work against getting this done: The Codidact help system sucks! When we first starte...
I need to make a circuit board that has the following inputs and outputs: Inputs and outputs Inputs: $V_{\text{in1}}$ (0-10VDC) PLC controlled signal $V_{\text{in2}}$ (0-10VDC) PLC controll...
Yes, that should work. Each sensor is then dumping a current related to its measurement onto a single common wire. Basically, the sensor outputs are summed because currents add. 10 m shouldn't b...
When placing traces on this ground plane, is it better to Keep them as tightly packed as possible, grouping them into a concentrated "island" within the ground pour (Image 1)? Space them out slig...
It all depends on what is connected between the main board and this "hat" board. Your schematic doesn't show any of these connections, so we can't really tell. In the end, the high current loop s...
From what I understand, PCB manufacturing has a limitation on the minimum width of the solder resist—it cannot be too thin, typically not less than 5 mil. In many components, including those with a...
I'm going to guess that by "PT100" you mean a positive coefficient temperature sensor with a nominal resistance of 100 Ω at 0°C or 25°C. Whatever it is you mean, it should be in your question. Th...
The first thing I noticed is that all your circuits use separate resistors to convert the current of each side to a voltage. That will cause a differential mode error signal to the extent the resi...
The section you quoted says: "by injecting a small amount of current into the ground". With a solid ground connection, the voltage on their ground pin shouldn't change no matter what current is in...
When the switch is ON the transceiver will be active No, it's the other way around. First, you should be able to see the bar over SHDN in the datasheet. That means negative logic, where low is a...
I am reading through a multi-channel power supply manual and at some point it discusses the ability to chain channels in parallel to increase current output. In the schematic, there is one resisto...
Read the datasheet and do the math. On page 3 of the datasheet we find that the guaranteed high and low threshold voltages for the PS/SYNC input are 1.4 and 0.4 V, and its maximum input current is...
I am using TPS63000 in my design and I need to control PS/SYNC pin using a micro-controller. **The input to the buck boost converter is 3V to 4.3V which is coming from a battery. The microcontrol...
The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions ...
I see that Nick has already provided a good answer to R5, so I'll only address this: Furthermore, an amplifier symbol called "gm" is labeled as transconductor. What does it do? What you show is a...
As a personal project, I have designed a synchronous FIFO in Verilog HDL. But while testing with a testbench, I observed that the FIFO values are flushed out after one clock cycle when read-enable ...
