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Archive for the ‘Basic Electronics’ category

Tube Devices

11 September 2013 - Active Components, Basic Electronics - Hypsine Electronics - No Comments

In electronics, a vacuum tube, electron tube (in North America), tube, or thermionic valve or valve (in British English) is a device controlling electric current through a vacuum in a sealed container. The container is often thin transparent glass in a roughly cylindrical shape. The simplest vacuum tube, the diode, is similar to an incandescent […]

About Transistor

11 September 2013 - Active Components, Basic Electronics - Hypsine Electronics - No Comments

The transistor is an arrangement of semiconductor materials that share common physical boundaries. Materials most commonly used are silicon, gallium-arsenide, and germanium, into which impurities have been introduced by a process called “doping.” In n -type semiconductors the impurities or dopants result in an excess of electrons, or negative charges; in p -type semiconductors the dopants […]

TRANSISTORS

11 September 2013 - Active Components, Basic Electronics - Hypsine Electronics - No Comments

A bipolar (junction) transistor (BJT) is a three-terminal electronic device constructed of doped semiconductor material and may be used in amplyfing or switching applications. Bipolar transistors are so named because their operation involves both electrons and holes. Charge flow in a BJT is due to bidirectional diffusion of charge carriers across a junction between two regions of different charge concentrations. This mode of operation […]

Inductor networks

10 September 2013 - Basic Electronics, Inductor, Passive Components - Hypsine Electronics - No Comments

Inductors in a parallel configuration each have the same potential difference (voltage). To find their total equivalent inductance (Leq): The current through inductors in series stays the same, but the voltage across each inductor can be different. The sum of the potential differences (voltage) is equal to the total voltage. To find their total inductance: […]

Inductors

10 September 2013 - Basic Electronics, Inductor, Passive Components - Hypsine Electronics - No Comments

Inductance (measured in henry) is an effect which results from the magnetic field that forms around a current carrying conductor. Current flowing through the inductor creates a magnetic field which has an associated electromotive field which opposes the applied voltage. This counter electromotive force (emf) is generated which opposes the change in voltage applied to […]

Voltage Rating of a Capacitor

10 September 2013 - Basic Electronics, Capacitor, Passive Components - Hypsine Electronics - No Comments

All capacitors have a maximum voltage rating and when selecting a capacitor consideration must be given to the amount of voltage to be applied across the capacitor. The maximum amount of voltage that can be applied to the capacitor without damage to its dielectric material is generally given in the data sheets as: WV, (working […]

Dielectric of a Capacitor

10 September 2013 - Basic Electronics, Capacitor, Passive Components - Hypsine Electronics - No Comments

As well as the overall size of the conductive plates and their distance or spacing apart from each other, another factor which affects the overall capacitance of the device is the type of dielectric material being used. In other words the “Permittivity” (ε) of the dielectric. The conductive plates are generally made of a metal […]

Capacitor Construction

10 September 2013 - Basic Electronics, Capacitor, Passive Components - Hypsine Electronics - No Comments

The parallel plate capacitor is the simplest form of capacitor. It can be constructed using two metal or metallised foil plates at a distance parallel to each other, with its capacitance value in Farads, being fixed by the surface area of the conductive plates and the distance of separation between them. Altering any two of […]

capacitor (capacitance)

10 September 2013 - Basic Electronics, Capacitor, Passive Components - Hypsine Electronics - No Comments

A capacitor is a passive electronic component that stores energy in the form of an electrostatic field. In its simplest form, a capacitor consists of two conducting plates separated by an insulating material called thedielectric. The capacitance is directly proportional to the surface areas of the plates, and is inversely proportional to the separation between […]

Resistors in Series

6 September 2013 - Basic Electronics, Passive Components, Resistor - Hypsine Electronics - No Comments

In this article we are talking about the resistors in series, how to calculate the equivalent resistance and about the voltage divider. Consider the following picture: resistors in series and the equivalent resistance (click to enlarge) In circuit 1 we have 2 resistors R1 and R2 connected in series and in circuit 2 is shown […]