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213,169 questions
0 votes
1 answer
18 views
How to simulate back-to-back CLA80E1200HF SCR's starting with TRIAC_parms.asy and TRIAC_parms.SUB simulation files, modifying them from the datasheet
I am trying to run a spice simulation of the CLA80E1200HF SCR, where I am attempting to control 220V RMS 10A RMS Inductive and resistive loads using LTSpice under Wine wine-10.0 (Ubuntu 10.0~repack-...
-1 votes
2 answers
52 views
How to access the AFE4960 register map?
How to access the AFE4960 Two-channel ECG analog front end with integrated respiration and pace detection register map? Why doesn't TI company provide that directly?
-1 votes
1 answer
31 views
Altium backspace key (while routing) remap
I am struggling to remap a backspace key which undo last segment during routing. I do not like this key being backspace and I would like to have it on a different key. The problem is it does not have ...
-1 votes
0 answers
18 views
ESP32-S3-WROOM-1U-N16R8 GPIO39 Goes High and Low at Code uploading
I use ESP32-S3-WROOM-1U-N16R8 for my project. I designed a PCB board to control an output relay using a transistor to drive the relay. I am experiencing an issue with GPIO 39. When uploading the code, ...
1 vote
1 answer
33 views
Scaling VRMS reading from ACS71020 Sensor
Using i2c on Arduino, I am reading register 0x20 from an Allegro ACS71020 Sensor, as here: powerSensor.read(0x20, value); This is then masked as here: ...
-1 votes
0 answers
54 views
Problems with Op-Amp models
I'm trying to build an inductive loop sensor and I'm having problems with components In the given schematic I used the model LT1215 for both of my Op-Amps. although I realize that I dont have that ...
0 votes
1 answer
39 views
What will be the value of "A0"(as given by the processor not the one labelled on ICs) in this question?
In this question, what will we take A0 for writing port addresses? As BHE(bar) is used for enabling it must be 0, and now i have two questions Does arrangement of data lines even matter for input ...
0 votes
0 answers
60 views
Who still manufactures anything close to these center tap tunable inductors? [closed]
These center tapped tunable coils were used extensively in 1950-1960s era electronic organs. Usually used in a Hartley oscillator, their value must be around 150-500mH for these larger winds (I don't ...
0 votes
0 answers
33 views
Why does BJT AMV extinguish in ngspice simulation?
The below circuit is transcribed from https://learnabout-electronics.org/Oscillators/osc41.php where the original circuit diagram may be found (Fig. 4.1.4). tao_r ...
0 votes
1 answer
22 views
Interpreting Ls for high-side MOSFETs in TI’s gate-resistor formula
TI’s application report “Fundamentals of MOSFET and IGBT Gate Driver Circuits” gives the recommended gate-resistor value as: Rg = 2 * sqrt(Ls / Ciss) - (Rdrv + Rgi) The note defines Ls as the sum of ...
-2 votes
0 answers
43 views
Walkman with dead right channel (Crown Japan cs-22f) [closed]
I'm trying to find out why the right channel of my Walkman is dead. The left one works perfectly. I already measured the 3.5 mm jack and all three contacts have a decent connection from the cable to ...
-2 votes
0 answers
32 views
function F=∑m (1, 2, 4, 5, 9, 10, 12, 13) using only three multiplexers 2:1? [closed]
How do I implement the function F=∑m (1, 2, 4, 5, 9, 10, 12, 13) using only three multiplexers 2:1?
4 votes
4 answers
1k views
How much is a factor of 2?
This paragraph is from The Art of Electronics third edition: Some more home-grown philosophy: there is a tendency among beginners to want to compute resistor values and other circuit component values ...
0 votes
2 answers
70 views
Flyback inrush current
For a flyback, ignoring the input capacitor and keeping a fixed duty cycle, when a flyback starts with a fully discharged output capacitor and no load, the primary switch current pulse of each cycle ...
-1 votes
0 answers
18 views
TiePie HS5 Generator output is 0V using python-libtiepie (Works fine in Multi Channel software) [closed]
I am trying to use a Handyscope HS5-540XMS with the standard python-libtiepie library on Windows. The Situation: I am running the default example scripts provided by the SDK (e.g., Generator.py) ...