# Questions tagged [non-linear]

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2answers
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### Signals and systems - Does y(n-1) affects when I check the system for linearity?

I have the following system: $$y[n] = \frac{x[n]}{3}+ 2x[n-1] -y[n-1]$$ And I have to check its linearity, but I don't know if i'm supposed to evaluate y[n-1] as if it was a x[n-1], or if I have to ...
1answer
75 views

### Book to understand BJT non-linearity [closed]

Can someone please suggest a good book to understand low and high frequency non-linearities like beta, gm, cbe, cbc and rb present in bjt. Thanks
2answers
48 views

### Voltage of IN pin of voltage regulator

A voltage regulator has a constant output voltage regardless of the load so it can been seen as a voltage dependent resistance but I am wondering what will happen in this case: simulate this circuit &...
1answer
46 views

2answers
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 ...
1answer
97 views

### How to even start solving multi-diode problems?

For example, in the circuit below there are 5 diodes constant-voltage-drop diodes, I could have 2^5 circuits to solve. Is there something I'm not paying attention to, that would greatly simplify this ...
2answers
196 views

### Determine the output voltage

I'm trying to solve the following question: Determine the output-tuned circuit voltage in Fig. 4.P-7. The tuned circuit is resonant at $\omega_0$ and has $Q_T = 20$. My try: I don't know how to ...
1answer
170 views

### How can the maximum average power transfer be negative in a power delivery circuit?

It is possible that the Thevenin resistance $R_{Th}$ of a circuit is negative. This occurs in non-linear circuits. Likewise, in AC circuits, the real part of $Z_{Th}$ can be negative. For AC ...
0answers
67 views

1answer
53 views

### Non linear DC voltage conditioning

I do not want to use any adc or dac. I want to see if this is possible by pure analog circuit. Any google links or book names are welcome. From 0 to 1000mV output should be 0 to 100mV. Then from ...
4answers
175 views

### Nonlinearities in Fully Differential Op Amp

I am trying to construct an amplifier circuit using a fully differential op amp (THS4503) to interface with an ADC (ADS5232). I will be reading a 0-5V sensor, which needs to be converted to a 1Vpp ...
2answers
305 views

### varistor with reverse operaton

Varistors are known to use for over-voltage protection, as they have high electrical resistance at low voltage which decreases as the voltage is raised.(wikipedia). But is there any electrical ...
2answers
153 views

### Photodiode + Op-Amp Acting Nonlinearly

I've built a laser power meter based on a photodiode (likely a ThorLabs FDS10X10), a simple op-amp circuit (op-amp is TLV2462, max 12V), and a microcontroller+screen: Internally, I've built the ...