# Questions tagged [linear]

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### Why do we need nonlinear electronics for computing?

When I read about photonics, I always see that they can be used for linear transformations (just matrix multiplications), and that this is a limitation that makes them unsuitable for building a ...
1 vote
49 views

### Linear model of diodes for mesh current and nodal voltage analysis?

If we use the piecewise linear model for diodes, can we apply mesh current and nodal voltage analysis to a circuit containing a diode?
1 vote
60 views

### Folded Overload Protection in Linear regulator

Can someone please explain how Q1 is able to protect from overload this linear circuit? Please see below for a simpler schematic of the above:
847 views

### How can I limit the DC input voltage from an AC rectified source to keep it within limits for 7805?

I have an AC power source that when rectified with 470 µF capacitor gives 38 V DC with no load. I have a 7805 (TO-220) which the data sheet says has a maximum input of 35 VDC. I'm trying to power an ...
28 views

### Linearization of a set of equations of a system is linearized about multiple points, or should it be a single point?

Linearization of a set of equations of a system is linearized about multiple points, or should it be a single point? I have 10 wind turbine generators in a system. Every generator has three ...
33 views

### Quick state feedback controller question

If two estimators where used in a state feedback system, one with error dynamics poles at -10 and -9 and another one at -80 and -90. Which system will give you a better overall performance? 211 views

### Linearization of thermistor

Thermistors are highly nonlinear devices . This linearization circuit of a NTC produces a linear response (temperature/resistance).But what should be the values of $R_{s}$ and $R_{p}$? Image from: ...
87 views

### Relationship between Vin and Vout of a linear voltage regulator in saturation region

Suppose we have a linear voltage regulator: simulate this circuit – Schematic created using CircuitLab If Vin is above Vth Vout is costant for all values Vin may take.However if Vin is below ...
1 vote
63 views

### 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 ...
1 vote
59 views