# Questions tagged [non-linear]

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### Variable-Gap Capacitors in LTSpice

I have seen several blog posts that discuss the concept of a nonlinear capacitor (or inductor) here, here, and here. Thanks to a concerned citizen for the references. I'm still struggling with the ...
871 views

### Simulating Chua's circuit in LTspice with a saturating transformer-based nonlinear resistor

Chua's circuit is one of the simplest circuits known to exhibit chaotic behavior. It consists of resistors, capacitors, an inductor, and an active nonlinear resistor. One implementation of this ...
5k views

### Transformer with hysteresis in LTspice

I would like to model a transformer in LTspice with hysteresis and saturation (or just hysteresis would be nice). I have already tried the Chen model which I don't like and tried to model a regular ...
712 views

### Electrical System Harmonics

I'm a mechanical engineer so I don't know much about electric circuits and power generation to begin with. Can somebody explain what a harmonic is in the power grid and what is the reason why it is ...
130 views

### Problems with analyzing a simple, non linear circuit

I have some problems with analyzing this pretty simple circuit (or more precisely with understanding the solution): The task is to find the characteristic curve for $$|U_E| \le 5V$$ My first ...
184 views

### When a signal has an interharmonic, is the signal periodic or non-periodic?

I have some questions regarding interharmonics. What I'm going to do is first ask just a few, and then as people answer them I would expand this post or create a new question. Harmonics are sinusoids ...
114 views

### Simple examples of higher order circuits and the cause of non linearity

In my previous question, I learned that resistance, capacitance, and inductance are not enough to capture the behavior of all circuits. This led me to the question, what are some examples of 'simple' ...
515 views

### SAR ADC has non-linearity around the middle of the range

I'm using a SAR ADC in STM32L433 chip and it exhibits a strange nonlinearity around the middle of the range which I can't explain. It's a 12bit ADC with 64x oversampling and 2 bit shift which ...
94 views

### What are the mechanism and effects of non-linearity in an attenuating barrier in the presence of a high-strength EM field?

It's my understanding that in electromagnetics, if an attenuating device is functioning linearly, it means that 1) input and output signal strengths are proportional; and 2) input f = output f. How ...
I have a circuit which I have taken a picture of as you can see, in which i have values of $$R1=1k\Omega,R2=10k\Omega,R3=10k\Omega.R4=10k\Omega,R5=20k\Omega$$ and sine input signal with off-set value=...