Comitronic BTI electrical components German Comitronic BTI models Comitronic BTI prices

Comitronic BTI electrical components are resistive elements with three terminals, whose resistance can be adjusted according to a specific variation pattern. A potentiometer typically consists of a resistive element and a movable wiper. When the wiper moves along the resistive element, a resistance value or voltage proportional to the displacement is obtained at the output terminal. Potentiometers can be used as three-terminal components or as two-terminal components. The latter can be regarded as a variable resistor; since its function in a circuit is to obtain an output voltage that has a certain relationship with the input voltage (applied voltage), it is called a potentiometer. A potentiometer is a type of variable resistor. It usually consists of a resistive element and a rotating or sliding system, i.e., a moving contact moves on the resistive element to obtain a partial voltage output. The function of a potentiometer is to adjust voltage (including DC voltage and signal voltage) and current magnitude. Structural features of potentiometers: The resistive element of a potentiometer has two fixed terminals. By manually adjusting the shaft or slider, the position of the moving contact on the resistive element is changed, thereby changing the resistance value between the moving contact and any fixed terminal, which in turn changes the voltage and current magnitude. A potentiometer is an adjustable electronic component. It consists of a resistive element and a rotating or sliding system. When a voltage is applied across the two fixed contacts of the resistive element, rotating or sliding the system changes the position of the contact on the resistive element, allowing a voltage proportional to the contact position to be obtained between the moving contact and the fixed contact. It is mostly used as a voltage divider, in which case the potentiometer is a four-terminal component. A potentiometer is essentially a sliding rheostat, available in several styles, generally used for volume control in speakers and power adjustment for laser heads. A potentiometer is an adjustable electronic component. It is a variable resistor used for voltage division. On the exposed resistive element, one or two movable metal contacts are pressed firmly. The contact position determines the resistance between either end of the resistive element and the contact. Classified by material: wire-wound, carbon film, and solid-core potentiometers. Classified by the relationship between the output-to-input voltage ratio and the rotation angle: linear potentiometers (linear relationship) and functional potentiometers (curvilinear relationship). Main parameters include resistance value, tolerance, and rated power. Widely used in electronic equipment, such as for volume control in audio systems and receivers.

Comitronic BTI electrical component structure

1. Liquid crystal panel: The liquid crystal panel includes a polarizing film, glass substrates, black matrix, color filters, protective film, common electrodes, alignment layer, liquid crystal layer (liquid crystal, spacers, sealant), capacitors, display electrodes, prism layer, and diffuser layer. The polarizing film is also known as a polarizer; polarizers are divided into upper and lower polarizers. The polarization functions of the upper and lower polarizers are perpendicular to each other. They act 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, glass substrates can be divided into an upper substrate and a lower substrate. Their main function is to hold the liquid crystal material in the space between the two substrates. The material for glass substrates is generally alkali-free borosilicate glass with excellent mechanical properties, heat resistance, and chemical corrosion resistance. For TFT-LCD, one glass substrate is distributed with TFT, while the other glass substrate is deposited with color filters. 3. Black matrix: The black matrix uses highly light-shielding materials to separate the red, green, and blue primary colors in the color filters (to prevent color mixing) and to prevent light leakage, thereby helping to improve the contrast of each color block. Additionally, in TFT-LCD, the black matrix can conceal internal electrode wiring or thin-film transistors. Color filters, also known as color filter films, function to produce 3 primary colors of light (red, green, and blue), enabling full-color display on the liquid crystal display. 4. Alignment layer: The alignment layer, also known as an orientation film or directional layer, functions to ensure that liquid crystal molecules are uniformly arranged and oriented 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: In LCD, the liquid crystal material acts like a light valve, 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, and other parameters of the potential signals on the transparent electrodes, establishing a driving electric field to ultimately realize information display on the liquid crystal panel. In liquid crystal panels, active-matrix liquid crystal displays are constructed by sealing twisted nematic (TN) liquid crystal material between two glass substrates. The upper glass substrate (closer to the display screen) is deposited with red, green, and blue (RGB) color filters (also known as color filter films), 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 both glass substrates to orient the liquid crystal molecules. Liquid crystal material is injected between the two glass substrates, and spacers are dispersed to ensure uniform gap thickness. The periphery is bonded with frame sealant for sealing purposes, and the common electrodes of the upper and lower glass substrates are connected using silver dot adhesive technology. Polarizers (also known as 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. Consequently, the intensity of incident light passing through the liquid crystal also changes. Liquid crystal displays leverage the optical rotation properties of the liquid crystal material combined with electric field control to achieve information display. 8. Backlight module: LCD products are non-emissive electronic devices that do not possess inherent light-emitting characteristics. They must rely on light emission from the source within 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 impacts the display quality of the liquid crystal panel. The backlight module includes illumination sources, reflectors, light guide plates, diffusion sheets, brightness enhancement films (prism sheets), and frames. Backlight modules used in LCD can be mainly categorized into edge-lit backlight modules and direct-lit backlight modules. Mobile phones, laptops, and monitors (15 inches) primarily use edge-lit backlight modules, while LCD TVs mostly use direct-lit backlight module light sources. Cold cathode fluorescent lamps and light-emitting diodes serve as the primary backlight sources for LCD. 9. Reflector: The reflector, also known as a reflection cover, mainly functions to direct all light emitted by the source into the light guide plate, minimizing unnecessary loss as much as possible. 1. Light guide plate: The main function of the light guide plate is to guide light from the side-mounted source toward 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 internal reflection within the film layer, emitting it from the backlight source at specific angles to achieve a screen brightening effect.15. Diffuser sheet: The main function of the diffuser sheet is to convert the edge-lit light from the backlight module into a uniform surface light source to achieve optical diffusion. Diffuser sheets are categorized into upper and lower diffuser sheets. The upper diffuser sheet is located between the prism sheet and the LCD assembly, closer to the display panel. The lower diffuser sheet is located between the light guide plate and the prism sheet, closer to the backlight source.

Comitronic BTI electrical component classification

Circuit breakers are classified by number of poles: single-pole, two-pole, three-pole, and four-pole; by installation method: plug-in, fixed, and draw-out.

Comitronic BTI electrical component classification

Circuit breakers are classified by number of poles: single-pole, two-pole, three-pole, and four-pole; by installation method: plug-in, fixed, and draw-out.

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