DZDDRAZICE electrical components Germany DZDDRAZICE model DZDDRAZICE price

DZDDRAZICE electrical components are products whose raw material molecular composition is not altered during factory processing, and can be referred to as components. Components belong to devices that do not require energy. They include: resistors, capacitors, and inductors. Circuit-type components include diodes and resistors; connection-type components include connectors, sockets, connecting cables, and printed circuit boards (PCB). Devices are products whose raw material molecular structure is altered during factory production and processing. Devices are divided into active devices and discrete devices. The main characteristic of active devices is that they consume electrical energy and require an external power source. Discrete devices are divided into bipolar junction transistors, field-effect transistors, thyristors, semiconductor resistors, and capacitors. shi

DZDDRAZICE electrical component structure

1. LCD panel: The LCD panel includes a 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. The polarizing film, also known as a polarizer, is divided into an upper polarizer and a 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 as required, for example, blocking light wave components perpendicular to the polarizer fence, while only allowing light wave components parallel to the fence to pass through. 2. Glass substrate: In liquid crystal displays, the glass substrate can be divided into an upper substrate and a lower substrate. Its main function is to hold the liquid crystal material in the space between the two substrates. The material for 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 the glass substrate is distributed with TFT, while the other layer of the glass substrate is deposited with a color filter. 3. Black matrix: The black matrix uses materials with high light-shielding performance to separate the red, green, and blue primary colors in the color filter (to prevent color mixing) and to 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. The color filter, also known as a color filter membrane, functions to generate 3 primary base colors of red, green, and blue, achieving full-color display for the liquid crystal display. 4. Alignment layer: The alignment layer, also known as an orientation film or directional 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 typically formed by depositing indium tin oxide (ITO) material on the glass substrate to create a transparent conductive layer. 6. Liquid crystal material: Liquid crystal material acts like a light valve in LCD, controlling the brightness of transmitted light to achieve information display. 7. Driver IC: The driver IC is essentially a set of integrated circuit chip devices used to adjust and control the phase, peak value, frequency, etc., of the potential signals on the transparent electrodes, establishing a driving electric field to ultimately realize information display on the liquid crystal. In the LCD panel, the active matrix liquid crystal display is 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) three-color filters (also known as color filter membranes), a black matrix, and a common transparent electrode. The lower glass substrate (the substrate farther from the display screen) is equipped with thin-film transistor (TFT) devices, transparent pixel electrodes, storage capacitors, gate lines, signal lines, etc. Alignment layers (or orientation 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 perimeter is bonded with frame sealant to provide a sealing effect; the common electrodes of the upper and lower glass substrates are connected using silver dot adhesive technology. 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 possess inherent luminous properties. They must rely on light emission from the light source in the backlight module to achieve display performance. Therefore, the brightness of LCD is determined by its backlight module. Thus, the performance of the backlight module directly affects the display quality of the LCD panel. The backlight module includes illumination light sources, reflectors, light guide plates, diffusion sheets, brightness enhancement films (prism sheets), and frames. 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 use edge-lit backlight modules, while LCD TVs mostly use 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 a reflector hood, mainly functions to direct all 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 light from the side light source to the front of the panel. 11. Prism sheet: The prism sheet, also known as a brightness enhancement film, mainly functions to concentrate scattered light through refraction and total reflection within the film layer, emitting it from the backlight source at a specific angle, thereby achieving a screen brightening display effect.14. 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. 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.

DZDDRAZICE electrical component structure

The basic structure of a voltage transformer is very similar to that of a transformer. It also has two windings, one called the primary winding and the other called the secondary winding. Both windings are mounted or wound on the iron core. There is insulation between the two windings and between the windings and the iron core, providing electrical isolation between the two windings and between the windings and the iron core. During operation of the voltage transformer, the primary winding N1 is connected in parallel to the line, and the secondary winding N13 is connected in parallel to instruments or relays. Therefore, when measuring voltage on high-voltage lines, although the primary voltage is very high, the secondary voltage is low, ensuring the safety of operators and instruments.

DZDDRAZICE electrical component structure

What everyone uses is the unidirectional thyristor, commonly known as the ordinary thyristor. It is composed of four layers of semiconductor materials and has three PN junctions, with three external electrodes: the electrode drawn from the first layer of P-type semiconductor is called the anode A; the electrode drawn from the third layer of P-type semiconductor is called the gate G; and the electrode drawn from the fourth layer of N-type semiconductor is called the cathode K. From the circuit symbol of the thyristor, it can be seen that, like a diode, it is a unidirectional conductive device. The key difference is the addition of a gate G, which gives it operating characteristics completely different from those of a diode. The P1N1P2N2 four-layer, three-terminal device, based on silicon monocrystal, is internationally known as the silicon controlled rectifier because its characteristics are similar to those of a vacuum thyratron. It is abbreviated as thyristor T. Because thyristors were initially used in static rectification, they are also called silicon controlled rectifiers, abbreviated as SCR SCR. In terms of performance, the SCR not only has unidirectional conductivity but also possesses controllability that is more valuable than that of silicon rectifier elements (commonly known as "dead silicon"). It has only two states: conduction and cutoff. The SCR can control high-power electromechanical equipment with milliampere-level current. If this power is exceeded, the switching loss of the component increases significantly, and the allowable average current decreases. In this case, the nominal current should be derated. The SCR has many advantages, such as controlling high power with low power, with a power amplification factor of up to hundreds of thousands; extremely fast response, turning on and off within microseconds; contactless operation, no sparks, no noise; high efficiency, low cost, etc. Weaknesses of the SCR: poor static and dynamic overload capacity; prone to mis-triggering due to interference. SCRs are mainly classified by appearance into: bolt type, flat plate type, and flat bottom type. Structure of SCR components. Regardless of the shape of the SCR, their cores are composed of a four-layer P1N1P2N2 structure made of P-type silicon and N-type silicon. It has three PN junctions (J1, J2, J3). The anode A is drawn from the P1 layer of the J1 structure, the cathode K is drawn from the N2 layer, and the gate G is drawn from the P4 layer, making it a four-layer, three-terminal semiconductor device.

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