REGO electrical components Germany REGO model REGO price

REGO electrical components are indispensable measuring instruments for departments such as power electronics, generally with the main purpose of measuring voltage, current, and resistance. Multimeters are divided into analog multimeters and digital multimeters according to the display method. It is a multi-function, multi-range measuring instrument. General multimeters can measure DC current, DC voltage, AC current, AC voltage, resistance, and audio levels, etc. Some can also measure AC current, capacitance, inductance, and some parameters of semiconductors (such as β), etc. A multimeter is a magnetoelectric instrument equipped with a rectifier, capable of measuring various electrical parameters such as AC/DC current, voltage, and resistance. For each electrical quantity, there are generally several ranges. Also known as a multi-meter or simply multi-meter. A multimeter consists of a magnetoelectric ammeter (meter head), measuring circuit, and selector switch, etc. Through the switching of the selector switch, various electrical parameters can be conveniently measured. The main basis for its circuit calculation is Ohm's law for closed circuits. There are many types of multimeters, and selection should be made according to different requirements during use.

REGO electrical component classification

Fiber optic connectors can be divided into common single-mode and multi-mode connectors for silica-based fibers according to different transmission media, as well as other fiber optic connectors using plastic etc. as transmission media. According to the connector structure form, they can be divided into: FC, SC, ST, LC, D9, DIN, MU, MT, and other various forms. Among them, ST connectors are usually used at the cabling equipment end, such as fiber patch panels and fiber modules; while SC and MT connectors are usually used at the network equipment end. According to the fiber end-face shape, they are divided into FC, PC (including SPC or UPC), and APC; according to the number of fiber cores, they are divided into single-core and multi-core (such as MT-RJ). Fiber optic connectors are widely used and come in many varieties. In practical applications, we generally distinguish them according to the different structures of fiber optic connectors.

REGO electrical component structure

1. LCD panel: The LCD panel includes polarizing film, glass substrate, black matrix, color filter, protective film, common electrode, alignment layer, liquid crystal layer (liquid crystal, spacers, sealant), capacitor, display electrode, prism layer, and diffuser layer. Polarizing film, also known as polarizer, is divided into upper polarizer and lower polarizer. The polarization functions of the upper and lower polarizers are perpendicular to each other. Their function is like a fence, blocking light wave components perpendicular to the polarizer fence as required, while only allowing light wave components parallel to the fence to pass through. 2. Glass substrate: In liquid crystal displays, glass substrates can be divided into upper substrate and lower substrate. Their main function is to hold the liquid crystal material in the space between the two substrates. The material of the glass substrate is generally alkali-free borosilicate glass with excellent mechanical properties, heat resistance, and chemical corrosion resistance. For TFT-LCD, one layer of glass substrate is distributed with TFT, while the other layer of glass substrate is deposited with color filters. 3. Black matrix: The black matrix uses materials with high light-shielding performance to separate the three primary colors (red, green, blue) in the color filter (to prevent color mixing) and prevent light leakage, thereby helping to improve the contrast of each color block. In addition, in TFT-LCD, the black matrix can also conceal internal electrode wiring or thin-film transistors. Color filters, also known as color filter membranes, function to produce 3 primary colors of red, green, and blue, achieving full-color display of the liquid crystal display. 4. Alignment film: The alignment film, also known as orientation film or alignment layer, functions to allow liquid crystal molecules to achieve uniform arrangement and orientation at the microscopic level. 5. Transparent electrode: Transparent electrodes are divided into common electrodes and pixel electrodes. The input signal voltage is applied between the pixel electrode and the common electrode. Transparent electrodes are usually formed by depositing indium tin oxide (ITO) material on the glass substrate to constitute a transparent conductive layer. 6. Liquid crystal material: Liquid crystal material plays a role similar to a light valve in LCD, controlling the brightness of transmitted light to achieve information display effects. 7. Driver IC: Driver IC is actually a set of integrated circuit chip devices used to adjust and control the phase, peak value, frequency, etc., of potential signals on transparent electrodes, establishing a driving electric field to finally realize information display of the liquid crystal. In the LCD panel, active matrix LCDs are constructed by sealing twisted nematic (TN) type liquid crystal material between two glass substrates. Among them, the upper glass substrate close to the display screen is deposited with red, green, and blue (RGB) tri-color filters (or color filter membranes), black matrix, and common transparent electrodes. The lower glass substrate (the substrate farther from the display screen) is installed with thin-film transistor (TFT) devices, transparent pixel electrodes, storage capacitors, gate lines, signal lines, etc. Alignment films (or alignment layers) are prepared on the inner sides of the two glass substrates to orient the liquid crystal molecules. Liquid crystal material is injected between the two glass substrates, and spacers are dispersed to ensure uniformity of the gap. The periphery is bonded with frame glue to provide sealing; the common electrodes of the upper and lower glass substrates are connected via silver dot paste process. Polarizers (or polarizing films) are attached to the outer sides of the upper and lower glass substrates respectively. When a voltage is applied between the pixel transparent electrode and the common transparent electrode, the arrangement state of the liquid crystal molecules changes. At this time, the intensity of incident light passing through the liquid crystal also changes. Liquid crystal displays utilize the optical rotation property of liquid crystal materials, combined with electric field control, to achieve information display. 8. Backlight module: LCD products are non-emissive electronic devices that do not have light-emitting characteristics themselves. They must rely on the emission of light sources in the backlight module to obtain display performance. Therefore, the brightness of LCD is determined by its backlight module. It can be seen that the performance of the backlight module directly affects the display quality of the LCD panel. The backlight module includes illumination light source, reflector, light guide plate, diffusion sheet, brightness enhancement film (prism sheet), and frame, etc. The backlight modules used in LCD can be mainly divided into two categories: edge-lit backlight modules and direct-lit backlight modules. Mobile phones, laptops, and monitors (15 inches) mainly adopt edge-lit backlight modules, while LCD TVs mostly adopt direct-lit backlight module light sources. Backlight module light sources mainly use cold cathode fluorescent lamps and light-emitting diodes as the backlights for LCD. 9. Reflector: The reflector, also known as reflector cup, mainly functions to completely direct the light emitted by the light source into the light guide plate, minimizing useless loss as much as possible. 1. Light guide plate: The main function of the light guide plate is to guide the light emitted from the side light source to the front of the panel. 11. Prism sheet: The prism sheet, also known as brightness enhancement film, mainly functions to concentrate scattered light through refraction and total reflection of this film layer, emitting it from the backlight source at a certain angle, achieving a screen brightening display effect.15. Diffusion sheet: The main function of the diffusion sheet is to correct the edge-lit light from the backlight module into a uniform surface light source to achieve optical diffusion effects. Diffusion sheets are divided into upper diffusion sheets and lower diffusion sheets. The upper diffusion sheet is located between the prism sheet and the LCD assembly, closer to the display panel. The lower diffusion sheet is located between the light guide plate and the prism sheet, closer to the backlight source.

REGO electrical component structure

The structure and materials of new high-voltage Schottky diodes differ from traditional Schottky diodes. Traditional Schottky diodes are formed by metal-semiconductor contact. Metal materials can be aluminum, gold, molybdenum, nickel, titanium, etc., and the semiconductor is usually silicon or gallium arsenide. Since electrons have higher mobility than holes, to obtain good frequency characteristics, N type semiconductor material is selected as the substrate. To reduce the junction capacitance of the Schottky diode and increase the reverse breakdown voltage, while not making the series resistance too large, a high-resistance N- thin layer is usually epitaxially grown on an N+ substrate. As we know, there are a large number of conductive electrons inside metal conductors. When metal contacts semiconductor (the distance between them is only on the order of atomic size), the Fermi level of the metal is lower than the Fermi level of the semiconductor. At the energy levels corresponding to the conduction band of the semiconductor inside the metal, the electron density is less than the electron density in the conduction band of the semiconductor. Therefore, after contact, electrons diffuse from the semiconductor to the metal, causing the metal to become negatively charged and the semiconductor positively charged. Since metal is an ideal conductor, negative charge is distributed only within a thin layer on the surface of atomic size. For N type semiconductors, donor impurity atoms that lose electrons become positive ions, distributed over a larger thickness. The result of electron diffusion from semiconductor to metal forms a space charge region, built-in electric field, and barrier, and the depletion layer is only on the N type semiconductor side (the barrier region falls entirely on the semiconductor side). The direction of the built-in electric field in the barrier region points from the N type region to the metal. As thermionic emission increases the built-in field, the drift current opposite to the diffusion current increases, finally reaching dynamic equilibrium, forming a contact barrier between the metal and semiconductor, which is the Schottky barrier. When the external voltage is zero, the electron diffusion current equals the reverse drift current, reaching dynamic equilibrium. When forward bias is applied (i.e., positive voltage to metal, negative voltage to semiconductor), the built-in field weakens, the barrier on the semiconductor side lowers, thus forming a forward current from metal to semiconductor. When reverse bias is applied, the built-in field strengthens, the barrier height increases, forming a smaller reverse current from semiconductor to metal. Therefore, SBD, like PN junction diodes, is a nonlinear device with unidirectional conductivity.

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