EKK electrical components Germany EKK models EKK prices

EKK electrical components are components that convert electrical energy into magnetic energy for storage. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance and only opposes changes in current. If the inductor is in a state with no current flowing through it, it will attempt to oppose current flow when the circuit is closed; if the inductor is in a state with current flowing through it, it will attempt to maintain the current unchanged when the circuit is opened. Inductors are also known as chokes, reactors, or dynamic reactors.

Superiority of EKK electrical components

There is no component consumption. No matter how excellent the vacuum tube, it will gradually deteriorate due to changes in cathode atoms and slow air leakage. For technical reasons, transistors faced the same problem at the beginning of their manufacture. They consume very little electrical energy, only one-tenth to one-several-tenths of that of vacuum tubes. Unlike vacuum tubes, they do not require heating filaments to generate free electrons. A transistor radio can operate for six months to a year on just a few dry cells, which is difficult to achieve with vacuum tube radios. No warm-up is required; they start working immediately upon power-on. For example, a transistor radio produces sound immediately upon switching on, and a transistor TV displays images quickly. Vacuum tube equipment cannot achieve this. After powering on, one must wait a while before hearing sound or seeing images. Obviously, transistors have significant advantages in military, measurement, recording, and other applications. They are robust and reliable, resistant to shock and vibration, which vacuum tubes cannot match. In addition, the volume of a transistor is only one-tenth to one-hundredth of that of a vacuum tube, and it generates very little heat, making it suitable for designing small, complex, and reliable circuits. Although the manufacturing process of transistors is precise, the steps are simple, which helps increase the installation density of components.

EKK electrical component principles

LCD is a display that uses liquid crystal as the material. Liquid crystals are a class of organic compounds between solid and liquid states. At room temperature, they exhibit both the fluidity of liquids and the optical anisotropy of crystals. They become a transparent liquid when heated and a crystalline turbid solid when cooled. Under the action of an electric field, the arrangement of liquid crystal molecules changes, thereby affecting the intensity of incident light passing through the liquid crystal. This change in light intensity is further manifested as a change in brightness through the action of polarizers. Accordingly, by controlling the electric field of the liquid crystal, changes in light brightness can be achieved, thereby achieving the purpose of information display. Therefore, the role of liquid crystal material is similar to that of small "light valves." Since there are control circuits and drive circuits around the liquid crystal material, when electrodes in the LCD generate an electric field, the liquid crystal molecules twist, thereby regularly refracting the light passing through them (optical rotation of the liquid crystal material), which is then filtered by the second layer of polarizer and displayed on the screen. It is worth noting that because liquid crystal materials do not emit light themselves, LCD displays usually require an additional light source for the display panel. The main light source system is called the "backlight module," in which the backlight plate is composed of fluorescent materials that can emit light, primarily providing a uniform backlight source.

EKK electrical component principles

It mainly consists of LC circuits composed of capacitors and inductors, generating free oscillations through the mutual conversion of electric field energy and magnetic field energy. To sustain oscillation, an amplifier circuit with positive feedback is required. LC oscillators are divided into transformer-coupled oscillators and three-point oscillators. Many applications use quartz crystal oscillators, and there are also LC oscillators composed of integrated operational amplifiers. Since device parameters cannot be completely identical, the states of the two transistors change at the moment of power-on. This change becomes increasingly strong due to positive feedback, leading to a quasi-stable state. During the quasi-stable period, the other transistor gradually charges through the capacitor and then conducts or cuts off, causing the state to flip and reaching another quasi-stable state. This cycle repeats to form oscillation.

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