Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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Pulse generator using NAND gate
Pulse generator using NAND gate. This circuit can be used as a clock for other circuits. The circuit’s main element is a 2 input (Schmitt Trigger) NAND gate
Types of Cells / Batteries
Types of cells / batteries. Primary batteries (non-rechargeable): Dry, mercury, alkaline. Secondary batteries (rechargeable): Nickel-Cadmium Alkaline, Lead
How does a battery work?
Electric batteries, by means of a chemical reaction, produce the following: At its negative terminal, there are a lot of electrons (negatively charged), and at its positive terminal, there is a lack of electrons (negatively charged).
Step Response of RL Circuits
When a constant voltage is suddenly applied to an RL circuit, an increasing a current goes through the conductor and creates a magnetic field that expands with the increasing current
Inductor in DC and AC. Quality factor
Inductor in direct current (DC) and alternating current (AC). Phase angle of the alternating current in an Inductor, The quality factor (Q)
What is an electric charge?
The electron (or proton, since they have the same charge) is the basic unit of electric charge. We can therefore consider the electron as the elementary unit of electric charge.
What is a radian? – Angular frequency (video)
What is a radian?
The radian is the angle that cover the portion of the circumference which is equal to the length of the radius of the circle
Boolean Algebra – Introduction and Rules
Boolean Algebra is a tool to reduce logical expressions. It is the mathematics of logical expressions, which was presented by George Boole in 1854.
Crystal Oscillators – Piezoelectric Oscillator. Equivalente circuit
The Crystal Oscillators (Piezoelectric Oscillator) A quartz crystal has a property called: piezoelectric effect. This effect causes, by applying a mechanical pressure on the surface of the crystal, that a voltage is developed…
LC Oscillator – Inductance – Capacitance Oscillator
LC oscillator: Inductance – Capacitance Oscillator A simple oscillator can be built with an amplifier stage and an inductive-capacitive network (LC) to provide an offset of -180°. The oscillation frequency can be freely adjusted…
Phase Shift Oscillator
The phase shift oscillator is a negative gain amplifier (-K) and a feedback network consisting of a third order RC section in cascade
Wien-bridge Oscillator with Op Amp
The Wien-bridge oscillator, consists of an Operational Amplifier (OA) in a non-inverting configuration with gain 1+R2/R1 and a RC feedback network