Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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Inductor – Inductance
Inductor – Coil. Inductance units. The inductor is made of a conductive wire wrapped into a spring like form. Magnetic field lines – Counter electromotive force (CEMF)
TRIAC – Power Control on AC
TRIAC. Power control on alternating current (AC)
Triac is a semiconductor device that belongs to the family of thyristor control devices. It is essentially two SCR connected in parallel and backwards, sharing the same gate.
Relay – Electromagnetic Switch
What is a relay?
Relay was invented in 1835 by the US scientist Joseph Henry (1797–1878). Relay or elecromagnetic relay is a magnetically operated switch that is activated or deactivated when the electromagnet is energized.
What is Direct Current? – What is 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.
Transformer Turn Ratio (K)
The transformer turn 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.
Resistor Tolerance. What is it? – Color code
Resistor tolerance is data that tells us the percentage that can vary the resistor value of its proposed value. This variation may go up or down in the percentage specified tolerance.
What are Microwaves? Applications, Frequency & Wavelength
At the present time the radio frequency spectrum is becoming small for the growing demand for telecommunications. The incursion into the field of microwaves is natural and we must also take into account that there are some applications that are unique to the microwave frequencies.
Capacitors in DC Circuits (Direct Current)
Capacitors in DC circuits. If a discharged capacitor is connected to a battery, a transient current flows through it, and the plates charge up
What is the Wheatstone Bridge Circuit?
This circuit was designed in 1833 by Samuel Hunter Christie (1784-1865). However, It was Mr. Charles Wheatstone who gave many uses to the Wheatstone bridge circuit when he discovered it in 1843.
Electronics – Electrical Unit Definitions
Electronics – Electrical Unit Definitions
Definitions of basic measurement units in electricity and electronics. Ampere (A), Coulomb (C), Joule (J), Watt (W), Farad (F), Henry (H), Ohm (Ω), Siemens (S), Volt (V), Hertz (Hz), Radian, Angular frequency (w), Time (t)
RC 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
12V 1A Power Supply Circuit
This 12V 1A power supply using zener diode and transistors allows us to obtain an output of approximately 11.4 volts with a very small percentage variation for a wide variety of loads.