## Binary data encoding

Computers represent and memorize data using electronic components that can assume only two states: on or off, just like a switch. The information that can be stored in a switch is the simplest that can be stored in a computer system and is called a bit. This means that every kind of information that we […]

## RLC circuit: harmonic response

In this article, a resonant RLC circuit will be analyzed. This circuit contains a capacitor and an inductor that continuously exchange their energy with one another. As a result this kind of device can manifest an oscillator behaviour and its transfer function includes a second order factor in the denominator. Another interesting feature of this […]

## CR circuit: harmonic response

In this article, we will deal with a simple high pass filter, made using a capacitor and a resistor, connected in series. We already saw something similar in the article about a RC circuit, but this time the output voltage will be measured on the resistor instead of the capacitor. Obviously the circuit will behave […]

## WordPress Linux installation

WordPress is a very popular content management software, because it allows anyone to build a website, even without any knowledge about HTML or programming. This tutorial should work on several Debian based Linux versions, and has been specifically tested on Ubuntu and Raspberry running the Raspbian operating system. Apache installation The engine running at the […]

## Differentiator: harmonic response

This article deals with a simple differentiator circuit, using an operational amplifier. Your browser does not support SVG  If we use the generic formula of the transfer function of a generic operational inverting amplifier, we can write: Where is the feedback impedance, while is the impedance connected to the input. The transfer function has just […]

## RC circuit: harmonic response

This article refers to the analysis of a simple low pass filter. The circuit is made of a resistor and capacitor, connected in series. In order to keep things simple, the calculations will be carried out in the Laplace domain. Your browser does not support SVG  Using the voltage divider formula, we can write: If […]

## Transfer function, Bode canonical form

The Bode canonical form is a widely used representation of the transfer function. One of the main reasons is that, using the parameters contained in the formula, drawing a graphical representation of the transfer function, in the frequency domain, becomes particularly easy. The parameters that appear in the formula have a physical meaning that can […]