Iron Core Inductor

The iron core has very special magnetic characteristics. What they do is to reinforce the magnetic field. The magnetism of the core material depends on the bias of  “the molecular magnetic domains”

What is Resonance in RLC Circuits?

Resonance in RLC Circuits is a special condition for parallel and series RLC circuits, when capacitive reactance and inductive reactance have the same magnitude and cancel each other. This only happens at frequency fo.

What is the Impedance of an Inductor?

The impedance of an inductor (also called inductance) is the measure of the opposition to a change of electrical current in this component.

Power in AC circuits.

Electric power. Electrical power on a circuit with reactive load (reactance).

How to obtain the current in a circuit having resistance and reactance.

Electric Power Transformer Structure

All electric transformers regardless of their size, have three fundamentals parts: high voltage winding, low voltage winding and Core:

What is an Autotransformer?

An autotransformer is a transformer where a part of the winding belongs to both the primary and secondary windings of the transformer. The operating principle is the same as the conventional transformer.

What is Impedance?

Impedance (Z) shows the opposition to the flow of direct or alternating current. Impedance is the vectorial addition of resistance (R) and reactance (X).

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.

RC High Pass Filter (passive High Pass filter)

An RC high pass filter allows only the passage of frequencies above the cut-off frequency (Fc) and eliminates frequencies above this frequency

What is the Impedance of a capacitor – Capacitive reactance?

The Impedance of a capacitor (Capacitive reactance) is the measure of the opposition to a change of the electrical current in this component.

RC Low Pass Filter An RC low pass filter is a circuit made by a resistor and a capacitor connected in series, as shown in the image below. The RC low pass filter allows only the passage of frequencies below a particular frequency called cut-off frequency (Fc) and eliminates frequencies above this frequency. These RC […]

Capacitor and Alternating Current (AC). Alternating current in capacitive circuits.

Unlike the behavior of a capacitor in DC, the alternating current (AC) passes more easily through a capacitor.