What is an Inductor – Coil?. Inductance – Inductance Units
Inductor stores energy in form of magnetic field due to the self-induction phenomenon. A cable where a current circulates, has on its surroundings a magnetic field.
Aug 202019
Aug 162019
Op-Amp Voltage follower / Op-Amp Voltage Buffer
Op Amp Voltage follower (Op Amp voltage Buffer). A buffer has an output that is exactly as the input. This behavior help solve impedance coupling problems.
Aug 072019
What is an Op Amp? What is an Op Amp Open Loop?
Op Amp Open Loop Gain – Operational Amplifier Open Loop gain is given when there is no feedback path between the output and one of the two inputs
Aug 062019
What is Direct Current? – DC
Direct Current (DC), is the result of the flow of electrons (negative charge) in a conductor (most of the time, wires of copper) that goes only in one direction.
Aug 052019
Zener diode Voltage regulator Circuit Design / Diagram
This zener diode voltage regulator design / diagram is achieved with two elements: 1 zener diode, 1 resistor and some basic electronic formulas.
Aug 052019
Transformer Turn Ratio – Transformer Transformation Ratio (TTR)
The transformer transformation ratio or transformer turns ratio (K) is the quotient value obtained by dividing the number of turns of the primary winding (N1) and the number of turns of the secondary winding (N2). Then K = N1/N2.
Aug 012019
BCD Code: Binary Coded Decimal
In order to share information in digital format, it is common to use a binary or hexadecimal representations (BCD Code). There are other methods to represent this information and one of them is the BCD code.
Jul 312019
Ebers Moll Model of a Bipolar Transistor
The bipolar transistor is an electronic device that originates a big evolution in the electronics field. The basic features of the bipolar transistor are introduced on this topic. We’ll study the basic model (Ebers Moll Model) of these devices and their use in the analysis of circuits biasing.
Jul 302019
What is Joule’s Law?
It is known as Joule effect to the phenomenon by which if in a wire circulates an electrical current, part of the energy is transformed into heat. This law (Joule’s Law) is named after the British physicist James Prescott Joule.
Jul 242019
What is Electrical Resistivity?
Electrical resistivity [ρ] (rho) is a characteristic of materials and has ohm-meter unit. Resistivity indicates how much the material opposes the flow of electric current.
Jul 242019
The Gray code is a special type of binary code that is unweighted (the digits that make up the code does not have an assigned weight).
Its characteristic is that between a combination of digits and the next, whether upstream or downstream, there is only a difference of one digit.
Jul 222019
LM317 variable voltage regulator circuit diagram.
LM317 characteristics. How the voltage regulator circuit works, Regulator circuit operation improvement