Questions tagged [error]
An error is the unwanted operation of an electrical / electronic component or system resulting from malfunctions. Use this tag if you have something that doesn't work as it should, or doesn't work at all.
316
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Improvement in current sensor accuracy
I want to improve the accuracy of a current sensor. 49% of the error I have at the moment is from the tolerance of the shunt resistor and 26 percent of that it is from the op amp offset voltage.
How ...
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Error during analysis in AWR Microwave Office
How to fix this error, and what does it mean?
A port is off grid. All polygon edges with ports attached must be 'snapped' to the grid.
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1
answer
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Nexperia spice mosfet modell not working in LTspice
Hello I get errors with MOSFET spice models from Nexperia,
I've tried to include the spice fil within the asc and as .include to the lib, the error is the same.
I think it may be so that the spice ...
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1
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What's causing this LED bulb to flicker?
I have an LED light bulb in which there are 16 LEDs in series powered by a constant-current supply.
One of the LEDs burned out so I just replaced it with a blob of solder and it worked for a while, ...
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Model undefined in OrCAD
I made a 31DQ10 diode in OrCAD from SPICE code because OrCAD didn't have one in its library. After exporting it to OrCAD with the model editor and running a simple circuit using that diode I am ...
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2
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43
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Treadmill controller with failures: Dying capacitor or other issue?
I own a Kettler Marathon treadmill from about 2002.
For a while now, the controller has had some failures/interruptions. Sometimes the display goes blank for a second and you lose the data from the ...
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Are ADC errors and noise RTI or RTO?
Are ADC errors like DNL, INL, Offset Error, Gain Error and Noise specs given in data sheets RTI or RTO?
The units are LSB so it makes me think they are RTI.
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NotImplementedError: in FeatherS3 - ESP32-S3 Adafruit (BLE HID)
I am trying to upload a BLE HID code to FeatherS3 - ESP32-S3 Adafruit and get a NotImplementedError.
I have no idea how to proceed forward. Please help me on this. This code works perfectly on a NRF52 ...
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How do I correctly apply the lifetime drift to the total output error of the ACS725LLCTR-10AU current sensor?
The ACS725LLCTR-10AU current sensor has following characteristics:
Datasheet: ACS725LLCTR-10AU
For simplicity let’s assume I’m only interested in the temperature range 25 °C to 150 °C.
At the lower ...
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votes
1
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Error "Missing syntax element" while adding SPICE model in TINA software
I am trying to add a SPICE model for an AD8606 IC as it is not available in the existing library of TINA software.
But it is showing me an error, please help me to resolve it.
The error message in ...
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Problem using table parameter in subcircuit
I am trying to use a subcircuit to replace a normal resistor for an FMEA.
The .sub file looks like this:
...
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What is the statistical accuracy of a Reference Voltage based current source?
I would like to make a current source from a reference voltage chip (REF102).
OPA277 is used as a buffer to pin the voltage at pin 4 to the bottom of the current setting resistor R.
Hypothetically, if ...
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1
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Syntax error near "else" in Verilog. I can't figure out what the error is [closed]
Create a scheme in which the counter would start counting "forward" five cycles, then "backward" two cycles from the loaded value by the EN signal.
It returns an error. Help me fix ...
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2
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All the currents and voltages are shown zero in my circuit - Cadence Virtuoso
In the following circuit, I do not know why all the currents and voltages are shown zero?
My simulation just contains the "DC" simulation. After performing DC simulation, all the node ...
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Error in Pspice: Circuit too large when using 74LS192
I have tried using 74LS192 in my Pspice simulation but it keeps on making an error page saying that the circuit is too large. I have tried just using only the 74LS192 to see if the error would pop up ...
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132
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0
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What should I fix in my settings in PSpice for simulation?
I am trying to build a D flip-flop from CMOS NAND gates.
This is the CMOS circuit to be built with NAND gates:
I can simulate NAND gate logic like this, and it works:
1 0 = 1,
0 1 = 1,
0 0 = 1,
1 1 = ...
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2
answers
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MCP9601 constantly indicating open thermocouple
While trying to get temperature values from my thermocouple amplifier, I am able to read the cold junction temperature, yet the hot junction temperature isn't even measured by the converter. Reading ...
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Cadence Virtuoso error: Expression evaluation failed
How can I solve this error in Cadence Virtuoso calculator?
expression evaluation failed: waveVsWave(?x IDC("/V1/PLUS") ?y OP("/M0","ron"))
I just want to show the ...
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1
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157
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2
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2
answers
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Strange ADC behavior - AVR32DA32
I'm measuring the power supply voltage through a voltage divider against a 2.5V voltage reference on a 12 bit ADC. Hopefully it's pretty clear the error I'm experiencing by looking at the table and ...
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197
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Why does this file give me "syntax error: I give up." in EDA Playground?
This is my original file saved as "design.v"
...
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90
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When calculating energy from a pulse measured with an oscilloscope, will the timestep always contribute a relative uncertainty of 1/2?
I am trying to calculate the energy delivered by a short electrical pulse. I am using an oscilloscope to capture the waveform and then exporting it to a CSV file. My scope took measurements at a rate ...
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Attiny88 with Micronucleus: Flash write error -1 most of time
I have this board with an Attiny88, a pin compatible Nano 'equivalent':
I want to build a simple motor controller however most of the time when I upload a program I get this error:
...
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Error in OrCAD: circuit too large
I am trying to simulate the elliptic filter in OrCAD and I am getting the error: circuit too large.
I have attached the screenshots of the circuit and netlist below:
user316666
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232
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Altium Designer schematic opening error
Sorry about that I am asking this question here, I had designed a schematic before in previous version of Altium Designer after fully uninstalled 20.2.7 version then I updated my Altium Designer to 22....
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103
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CAN Bus error frame in PWM driver
I have a CAN communication problem with my PWM RGB LED driver. I have a controller and a PWM RGB LED driver. The controller sends messages to the LED driver about what the PWM duty cycle of the RGB ...
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624
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ADS-syntax parser error in `<ADS netlist>', line xx: syntax error
I have the problem with ADS when I am simulating my schematic design. Here is the error message:
...
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0
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229
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Internal timestep 2.45482e-13 too small at time 5.73394e-13 - ADS error
I want to do transient simulation in ADS. But I encountered with an error shown completely in the following message:
Simulation message:
...
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2
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CANbus Error Handling
I was wondering how the CANbus reacts to incomplete, irregular messages.
For example, lets say a node on the network was hacked or compromised and sends only the SOF bit and the 11-bit identifier but ...
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2
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450
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Thermocouple circuit not outputting expected values
My application requires 11 thermocouples to be sampled and logged. Below is the circuit diagram, containing a differential and common mode filter, non-inverting amplifier (gain 111) and a second order ...
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90
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LTspice: conditions values measurement in error log automatically
I am trying to measure automatically values according to another value on the schematic (.meas values in the log error).
Here you can see what I would like :
In this case I want in the spice error ...
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240
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LMG1210 application in LTspice
Could you help me with the driver LMG1210 to work in LTspice. On the TI website there is only Pspice model LMG1210, so I used auto-generation to work with it in LTspice. However, when running the ...
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3
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296
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How output is not zero if error is zero in control systems
In a classical negative control scheme where we have a plant and controller in series and no disturbance. The system is designed such a way to make output is equal to input no matter what problems ...
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Crystal oscillator error due to ppm
In this link, the accepted answer states that there may be an error of 1 minute per month if the crystal ppm is 20ppm.
Can someone help me with the math of how the error of 1 minute is arrived?
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If function error in LTSpice
Hi I am trying to simulate a model of a paper in LTSpice but I get an if function error which says
"Syntax error: function if(): requires exactly three segments"
These are the code of the ...
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In LTspice, why does having these two transformer models create an error?
I've run this circuit with all the inductors placed in the circuit with the appropriate 'K' commands and, although deeply slow in the simulation, it works just fine.
When I've placed them into models ...
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Voltage on battery-backed SRAM somehow higher than both battery and regulated supply
I'm using an AS6C1008 SRAM chip, and I'm having an odd issue with it. The voltage supply going to this chip is created from a stiff 5V supply (VDD) and a 3V backup battery (CR2032), diode or-ed ...
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2
answers
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How to minimize the effect on DNL error from this opamp circuit?
By using the following single LM324 circuit, I create amplified bipolar outputs from a 16-bit 0-3.3V DAC output as follows:
My aim is to minimize extra DC error due to the above LM324 circuit ...
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1
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What is the proper way to handle a status led when HardFault_Handler or any error is raised?
I am trying to implement a very basic status indicator using an STM32 - Basically I would like to toggle a RED LED when a fault is triggered by the MCU.
Naively I added a toggle LED function in the ...
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Analog pins showing incorrect data. Only from 0 to 255
A month ago, I connected a joystick with an Arduino Uno. VCC with Arduino 5v, GND with ground and Y axis with analog. I tried all, but the error persist with all 6.
A month ago, in the serial monitor ...
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Laptop motherboard not working, quiet clicking noise
Intro how it happened:
I had cleaned my laptop from dust and reapplied the thermal paste. After this i have reassembled the device than it did not turned on. Then i took it apart connected the fan and ...
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1
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Weird values from ADS1115 chip and remote I/0 error
I am using a ADS1115 chip to read the values from a potentiometer and then transfer them to a raspberry pi zero w.
I wired the potentiometers, so that on the left would be the lowest. GND - DATA - VDD....
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Syntax error Begin statement HDL 9-806
I have an error in the form of HDL 9-806 on the begin statement.
The code below is a button based sequence detector an addition LED flash when sequence is correct with a debouncer to stop multiple ...
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Net PWMA_IC3 contains Multiple Input Ports(PWMA,PWMA) [duplicate]
I have to give two different PWM Input to my two Gate driver ICs my design.
i have taken two output ports PWMA and PWMB hoping, I will make them 180° apart in phase in programming.
2)I want to give ...
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How to fix Texas Instruments DAC81408EVM Internal Oscillator error
So I'm working with Texas Instrument's DAC81408EVM (https://www.ti.com/tool/DAC81408EVM) as an external DAC for a project I'm working on. I'm posting here because TI's forum won't let me ask questions ...
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2
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Attiny85 Burn Bootloader Error [Device signature = 0x000000] [SOLVED]
I had read in different forums about similar issues and double-check the connections and datasheet. But it's still not working for me. First of all, I will share my build and my configuration. Later ...
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How to perform quality assurance? [closed]
The site description is given as "Q&A for electronics and electrical engineering professionals, students, and enthusiasts" and I'm interested in "QA for electronics". Though I ...
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Find the range of uncertainty? [duplicate]
The problem says that an ammeter has a 30 mA upper measurement limit and its accuracy class is 2%.
For the relative measurement error when measuring 22 mA, I found it is2,7%. I used the formula h(%) = ...
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Am I reading the multimeter uncertainty correctly? [duplicate]
I am using a multimeter that has an uncertainty (from the manual) of 0.5% plus 5 digits in DC voltage measurements, 4V range.
I have a reading of 1.6172 V. That means an uncertainty of 0.508 V. Isn't ...
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