Search
Answer to question 1: First, you need p-mos and not n-mos, as you are switching the circuit from the above. Second, it is better and simpler to parallelize mosfets for big current switches; this w...
What would be the main considerations to use Pi-filters for EMC?
I recommend using native HTML for lists, and most other formatting for that matter. HTML gets around the ambiguity of what is an item and what is text following the list. The list isn't over unti...
I'd like to use a 555 timer as carrier wave generator at ~ 50 kHz and modulate the amplitude with an external digital signal at ~ 1 kHz. The pulse width remains constant at 10us (50% duty cycle)....
It's kind of surprising that the TVS diodes dumping ESD into the GND plane don't affect the microcontroller; however, if the shield dumps ESD into the GND plane it has a very strong effect. Th...
PCB's and components are expected to be used with the common SAC solder, there's little reason to use SnPb, IMO. I learned on SnPb. After a brief transition for RoHS to re-calibrate the "feel" of i...
In circuit analysis why always the power has upper hand over energy? Even if we consider a simple battery circuit with a bunch of resisitors we always use the terms power delivered,absorbed,consump...
I just want to know why the Linear time-invariant(LTI) systems are a rich class in Signal Processing. Ofcourse there are different systems but still LTI is stressed a lot in academia. Is there any ...
We can now support changing the reputation values for papers, if this is what the EE community would like. Here's how it would work. We can't currently vary properties of post types per category, ...
The turntable is apparently run by a cheap synchronous motor. There is a type of motor that's easy to manufacture, that turns synchronously with the line frequency. You say the table used to rota...
In the block diagram of this pulse oximeter design guide , in page 6, I see that the system utilizes two analog filters, one for filtering the PPG signal generated while the RED light/wavelength is...
UPDATED. based on clarification to original question. To be clear, just an idea, not tested for this situation! It is abusing the V_I_L margin on the 3.3V CMOS input, so series diode should be sc...
I want to run a specific motor in the open loop. How to calculate the maximum ratio of V/f to run it? Am I looking at Ld or Lq value for this? Let's say these are the characteristics - haven't ch...
I am trying to design a full adder in SystemVerilog. I searched on Wikipedia and I found this https://en.wikibooks.org/w/index.php?title=Microprocessor_Design/Add_and_Subtract_Blocks module full_...
The video helped explain a few things, but it's still not clear what the overall purpose of this device is. You showed it clearly producing a signal, but the documentation you quote talks about an...
Why does the Darlington or Sziklai configurations need complementary transistors? For these configurations, when should I use complementary pairs and when could I use not complementary pairs ?
let me begin with a schematic for an adjustable current source with a simple load: The operation is simple: The current I inside R1 gives rise a voltage drop equal to I/R1 (= I if R1 = 1). So the ...
Assuming nothing is broken or wired incorrectly, this is most likely the result of the opamp oscillating wildly. The average may still be about what it should be, so you might not notice with only...
RTOS A RTOS (Real Time Operating System) is much more than a bunch of interrupts. Most true dedicated microcontroller applications don't need any RTOS or any other kind of operating system. Genera...
Well, here is was my logic tells me: The corrosion has caused a high impedance in the L2 wire, but there should be also a "short" between the L1 and L2 wire. So that the voltage between L1 and L2 f...
My step-up converter makes audible noise both with and without a load.I am almost certain it is the inductor, because when I hold my finger on it I can feel vibration and it gets quieter. Unfortuna...
It doesn't quite work that way. You are missing the fact that the current (which the magnetic field is proportional to) decays exponentially. You are also missing the resistance of the coil itsel...
When the outage occurred, I observed the following The L1/G voltage difference was 120V (good). The G/L2 voltage difference was 90V (bad). The L1/L2 voltage difference was 30V (very bad!). If t...
My biggest concern is that it will get too random and low quality. The worst that can happen is something similar to SO's failed "Documentation project" a couple of years ago, where users were to w...
Hi, I built a constant current load following the circuit from https://www.instructables.com/id/DIY-Constant-current-load/ But my op amp gets destroyed after a few minutes. The transistor or the op...
