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.
What are MOSFET Transistors?
MOSFET Transistors or Metal Oxide-Semiconductor (MOS) are field effect devices that use the electric field to create a conduction channel. MOSFET transistors are more important than JFETs because almost all Integrated Circuits are built with the MOS technology.
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.
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.
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.
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.
Microwaves
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.
Electrostatic Force – Coulomb’s Law
The Electrostatic force is an attraction or a repulsion force. It depends on the charges and distance between them.
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)
Second Right-Hand Rule – Electromagnetism
Second Right-Hand Rule. When a current flows through a conductive wire a non-visible effect called the electromagnetic field is generated around it.
What is the difference between electricity and electronics?
The difference between electricity and electronics or the difference of an electric circuit and an electronic circuit, is that in the electronics circuit, a control is exercised over the flow of the electric current.
Series and Parallel Inductors – Series & Parallel equivalent inductance.
On many occasions it is necessary to obtain the equivalent value of a set of inductors that are connected in series or parallel. This are the simplest methods to calculate the values (inductance) of series and parallel inductors.