LAMELAELECTRIC electrical components Germany LAMELAELECTRIC model LAMELAELECTRIC price

LAMELAELECTRIC electrical components are active-matrix liquid crystal displays driven by thin-film transistors. They primarily use current to stimulate liquid crystal molecules to generate points, lines, and planes, which combine with backlights to form images. IPS, TFT, and SLCD are all subclasses of LCD. Their working principle is that, under the action of an electric field, the alignment direction of liquid crystal molecules changes, altering the transmittance of external light sources (modulation) to achieve electro-optical conversion. Then, using different excitations of the R, G, and B primary color signals through red, green, and blue color filter films, color reproduction in the time and spatial domains is achieved.

LAMELAELECTRIC electrical component principle

A photodiode is a semiconductor device that converts optical signals into electrical signals. Its core part is also a PN junction. Compared with ordinary diodes, the structural difference is that, to facilitate the reception of incident light, the PN junction area is made as large as possible, the electrode area is made as small as possible, and the junction depth of the PN junction is very shallow, generally less than 7 micrometers. Photodiodes operate under reverse voltage. When there is no illumination, the reverse current is very small, known as dark current. When illuminated, photons carrying energy enter the PN junction and transfer energy to bound electrons in covalent bonds, causing some electrons to break free from the covalent bonds, thereby generating electron-hole pairs, known as photogenerated carriers. Under the action of reverse voltage, they participate in drift motion, significantly increasing the reverse current; the greater the light intensity, the larger the reverse current. This characteristic is called "photoconductivity." The current generated by a photodiode under general illumination is called photocurrent. If a load is connected in the external circuit, the load receives an electrical signal, and this electrical signal changes correspondingly with changes in light. Photodiodes are widely used photosensitive devices in electronic circuits. Like ordinary diodes, photodiodes have a PN junction. The difference is that the photodiode housing has a transparent window to receive light irradiation, achieving photoelectric conversion. In circuit diagrams, the text symbol is generally VD.

LAMELAELECTRIC electrical component classification

Common classifications of inductor coils in circuits include the following: Classification by inductance form: fixed inductors, variable inductors. Classification by magnetic core material: air-core coils, ferrite coils, iron-core coils, copper-core coils. Classification by operating nature: antenna coils, oscillator coils, choke coils, trap coils, deflection coils. Classification by winding structure: single-layer coils, multi-layer coils, honeycomb coils, close-wound coils, spaced-wound coils, self-supporting coils, honeycomb coils, random-wound coils.

LAMELAELECTRIC electrical component structure

Inductors generally consist of bobbins, windings, shielding covers, encapsulation materials, magnetic cores, or iron cores. 1, Bobbin: A bobbin refers to the support for winding coils. Most large-volume fixed inductors or adjustable inductors (such as oscillator coils, chokes, etc.) involve winding enameled wire (or silk-covered wire) around the bobbin and then inserting magnetic cores, copper cores, or iron cores into the inner cavity of the bobbin to increase inductance. Bobs are usually made of plastic, bakelite, or ceramic and can be shaped according to actual needs. Small inductors (such as color-code inductors) generally do not use bobbins but directly wind enameled wire onto magnetic cores. Air-core inductors (also known as self-supporting coils or air-core coils, mostly used in high-frequency circuits) do not use magnetic cores, bobbins, or shielding covers; instead, they are wound on a mold first, then the mold is removed, and a certain distance is maintained between the coil turns. 2, Winding: A winding refers to a set of coils with specified functions and is the basic component of an inductor. Windings are divided into single-layer and multi-layer types. Single-layer windings have two forms: close-wound (wires are wound circle by circle) and spaced-wound (a certain distance is kept between each wire turn during winding); multi-layer windings include layered flat winding, random winding, honeycomb winding, and other methods. 3, Magnetic Core and Magnetic Rod: Magnetic cores and rods are generally made of nickel-zinc ferrite or manganese-zinc ferrite materials and come in various shapes such as "I" shape, cylindrical, cap-shaped, "E" shape, and pot shape. 4, Iron Core: Iron core materials mainly include silicon steel sheets and permalloy, and their shape is mostly "E" type. 5, Shielding Cover: To prevent the magnetic field generated by some inductors during operation from affecting other circuits and components, metal shielding covers are added (such as oscillator coils in semiconductor radios). Inductors with shielding covers will increase coil losses, reducing the Q value. 13, Encapsulation Material: Some inductors (such as color-code inductors, color-ring inductors, etc.) are sealed with encapsulation materials after winding to enclose the coils and magnetic cores. Encapsulation materials include plastic or epoxy resin.

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