LICTECHNIKA electrical components Germany LICTECHNIKA model LICTECHNIKA price

LICTECHNIKA electrical components refer to electronic components that generate resonant frequencies. Common types are divided into quartz crystal resonators and ceramic resonators. They function to generate frequencies and feature stability and good anti-interference performance, making them widely used in various electronic products. The frequency accuracy of quartz crystal resonators is higher than that of ceramic resonators, but their cost is also higher. Resonators mainly serve the role of frequency control; all electronic products involving frequency transmission and reception require resonators. Resonator types can be divided into through-hole and surface-mount types based on their physical form.

LICTECHNIKA electrical component principle

A crystal diode is a p-n junction formed by p-type semiconductor and n-type semiconductor. A space charge layer is formed on both sides of its interface, establishing a built-in electric field. When no external voltage is applied, it is in electrical equilibrium because the diffusion current caused by the carrier concentration difference across the p-n junction equals the drift current caused by the built-in electric field. When forward voltage bias is applied externally, the mutual cancellation between the external electric field and the built-in electric field increases the carrier diffusion current, causing forward current. When reverse voltage bias is applied externally, the external electric field and the built-in electric field are further strengthened, forming a reverse saturation current within a certain reverse voltage range that is independent of the reverse bias voltage value. When the applied reverse voltage reaches a certain level, the electric field intensity in the space charge layer of the p-n junction reaches a critical value, causing a carrier multiplication process that generates a large number of electron-hole pairs, resulting in a significant reverse breakdown current, known as the diode breakdown phenomenon.

LICTECHNIKA electrical component structure

The structure of a power cord is not overly complex, but it cannot be fully understood by superficial observation. A thorough study reveals that certain aspects require professional knowledge to comprehend the structure of the power cord. The structure of a power cord mainly consists of an outer sheath, an inner sheath, and conductors. Common transmission conductors include metal wires made of copper, aluminum, and other materials. ① The outer sheath, also known as the protective sheath, is the outermost layer of the power cord. This outer sheath serves to protect the power cord and possesses robust characteristics, such as high-temperature resistance, low-temperature resistance, resistance to natural light interference, good flexibility, long service life, and environmentally friendly materials. ② The inner sheath, also known as the insulating sheath, is an essential intermediate structural component of the power cord. As the name suggests, the primary function of the insulating sheath is insulation, ensuring electrical safety by preventing any leakage between the copper wires and the air. The material of the insulating sheath must be soft to ensure it fits well within the intermediate layer. ③ Copper wire is the core component of the power cord, primarily serving as the carrier for current and voltage. The density of the copper wire directly affects the quality of the power cord. The material of the power cord is also a critical factor in quality control, with the quantity and flexibility of the copper wires being additional considerations. ④ The inner sheath is a layer of material wrapped between the shielding layer and the wire core, typically made of polyvinyl chloride (PVC) or polyethylene (PE) plastic. Low-smoke zero-halogen materials are also used. Used in accordance with process specifications, it prevents the insulation layer from coming into contact with water, air, or other objects, thereby avoiding moisture absorption and mechanical damage to the insulation layer.

LICTECHNIKA electrical component applications

The most basic application of ordinary thyristors is controlled rectification. The familiar diode rectifier circuit belongs to uncontrolled rectification circuits. If diodes are replaced with thyristors, a controlled rectification circuit can be formed. Taking the simplest single-phase half-wave controlled rectification circuit as an example, during the positive half-cycle of the sinusoidal AC voltage U2, if the gate of VS receives no trigger pulse Ug, VS will not conduct. Only when U2 is in the positive half-cycle and a trigger pulse Ug is applied to the gate, the thyristor is triggered to conduct. Draw its waveforms (c) and (d); only when the trigger pulse Ug arrives is there voltage UL output across the load RL. If Ug arrives early, the thyristor conducts earlier; if Ug arrives late, the thyristor conducts later. By changing the arrival time of the trigger pulse Ug at the gate, the average value of the output voltage UL across the load can be adjusted. In electrical engineering technology, half a cycle of AC is often defined as 180°, called the electrical angle. Thus, in each positive half-cycle of U2, the electrical angle experienced from the zero value to the instant the trigger pulse arrives is called the control angle α; the electrical angle during which the thyristor conducts in each positive half-cycle is called the conduction angle θ. Clearly, α and θ are used to indicate the conduction or blocking range of the thyristor during the half-cycle where it withstands forward voltage. By changing the control angle α or conduction angle θ, the average value of the pulsed DC voltage UL across the load is changed, achieving controlled rectification. Small-power plastic-packaged bidirectional triacs are typically used in sound and light control lighting systems. Rated current is less than 9A. Large and medium-power plastic-packaged and iron-packaged thyristors are typically used in power-type controlled voltage regulation circuits, such as adjustable output DC power supplies. High-power high-frequency thyristors are typically used in industry, such as in high-frequency melting furnaces.

Weidou Intelligent Technology professionally sells German LICTECHNIKA connectors, LICTECHNIKA switches, LICTECHNIKA relays, LICTECHNIKA controllers, LICTECHNIKA plugs, LICTECHNIKA sensors, LICTECHNIKA resistors, LICTECHNIKA capacitors, LICTECHNIKA buses, LICTECHNIKA modules, LICTECHNIKA cables, LICTECHNIKA power supplies, LICTECHNIKA interfaces, LICTECHNIKA gateways, LICTECHNIKA circuit breakers, LICTECHNIKA original imports from Germany. Welcome customers to inquire and order.