ATEG Automation electrical components Germany ATEG Automation model ATEG Automation price

ATEG Automation electrical component is an electronic device with three terminals, made of three parts of semiconductors with different doping levels. The charge flow in the transistor is mainly due to the diffusion and drift movement of carriers at the PN junction. The operation of this transistor involves the flow of both electrons and holes, so it is called bipolar, also known as a bipolar junction transistor. This operating mode is different from unipolar transistors such as field-effect transistors, whose operation only involves the drift of a single type of carrier. The boundary between two regions with different dopants is formed by the PN junction. Bipolar transistors can amplify signals and have good power control, high-speed operation, and durability, so they are often used to form amplifier circuits or drive devices such as speakers and motors, and are widely used in aerospace engineering, medical devices, and robotics applications.

ATEG Automation electrical component principle

The forward characteristic of the volt-ampere characteristic curve of a Zener diode is similar to that of a ordinary diode. In the reverse characteristic, when the reverse voltage is lower than the reverse breakdown voltage, the reverse resistance is very high and the reverse leakage current is extremely small. However, when the reverse voltage approaches the critical value of the reverse voltage, the reverse current increases suddenly, which is called breakdown. At this critical breakdown point, the reverse resistance drops suddenly to a very small value. Although the current changes within a large range, the voltage across the diode remains basically stable near the breakdown voltage, thereby achieving the voltage stabilization function of the diode.

ATEG Automation electrical component structure

Inductors are generally composed of bobbins, windings, shielding covers, encapsulation materials, magnetic cores or iron cores, etc. 1, Bobbin: The bobbin refers to the support for winding the coil. For some larger fixed inductors or adjustable inductors (such as oscillator coils, choke coils, etc.), enameled wire (or silk-covered wire) is mostly wound around the bobbin, and then magnetic cores, copper cores, or iron cores are installed into the inner cavity of the bobbin to increase its inductance. Bobbins are usually made of plastic, bakelite, or ceramic, and can be made into different shapes according to actual needs. Small inductors (such as color-coded inductors) generally do not use bobbins, but directly wind enameled wire on the magnetic core. Air-core inductors (also called former-less 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 turns of the coil. 2, Winding: The winding refers to a set of coils with specified functions, which is the basic component of an inductor. Windings are divided into single-layer and multi-layer types. Single-layer windings have two forms: close winding (where wires are wound turn by turn) and spaced winding (where a certain distance is kept between each turn of wire); multi-layer windings include layered flat winding, random winding, honeycomb winding, etc. 3, Magnetic Core and Magnetic Rod: Magnetic cores and magnetic rods are generally made of materials such as nickel-zinc ferrite or manganese-zinc ferrite, and come in various shapes such as "I" shape, cylindrical, cap shape, "E" shape, pot shape, etc. 4, Iron Core: Iron core materials mainly include silicon steel sheets, permalloy, etc., and their shape is mostly "E" type. 5, Shielding Cover: To prevent the magnetic field generated by some inductors during operation from affecting the normal operation of other circuits and components, a metal shielding cover is added (such as the oscillator coil of a semiconductor radio). Inductors with shielding covers will increase coil loss, reducing the Q value. 12, Encapsulation Material: Some inductors (such as color-coded inductors, color-ring inductors, etc.) are sealed with encapsulation materials after winding to enclose the coil and magnetic core. Encapsulation materials include plastic or epoxy resin.

ATEG Automation electrical component function

The self-induced electromotive force in an inductor coil always opposes the change in current in the coil. The inductor coil has an obstructive effect on alternating current, and the magnitude of this obstruction is called inductive reactance xl, with the unit being Ohm. Its relationship with inductance l and AC frequency f is xl=2πfl. Inductors can be mainly divided into high-frequency choke coils and low-frequency choke coils. An inductor coil connected in parallel with a capacitor can form an lc tuned circuit. That is, when the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non-AC signal, the inductive reactance and capacitive reactance of the loop are also equal, so electromagnetic energy oscillates back and forth between the inductor and capacitor. This is the resonance phenomenon of the lc loop. At resonance, the inductive reactance and capacitive reactance of the circuit are equal in value but opposite in direction, the total inductive reactance of the loop current is minimal, and the current is maximal (referring to AC signals where f="f0"). The lc resonant circuit has the function of selecting frequency, capable of selecting AC signals of a specific frequency f.

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