DTTECHNIC electrical components Germany DTTECHNIC model DTTECHNIC price

DTTECHNIC electrical components are devices that convert other forms of energy into electrical energy and supply it to circuits (electronic equipment). Power supplies operate on the principle of electromagnetic induction, generating electricity from renewable sources such as hydropower, wind power, tides, dam water pressure differences, and solar energy, as well as from burning coal and oil residues. A power supply is a device that provides power to electronic equipment, also known as a power supply unit; it provides the electrical energy required by all components in a computer. The magnitude of the power supply's output, and the stability of its current and voltage, directly affect the computer's operating performance and service life.

DTTECHNIC electrical component features

Among various types of switches, there is a component with the ability to "sense" objects approaching it—the displacement sensor. Utilizing the sensitivity of the displacement sensor to approaching objects achieves the purpose of controlling the switch to turn on or off; this is a proximity switch. When an object moves toward the proximity switch and approaches within a certain distance, the displacement sensor "senses" it, and the switch activates. This distance is typically called the "detection distance." Different proximity switches have different detection distances. Sometimes, detected objects move toward the proximity switch one after another at certain time intervals, and then leave one by one, repeating continuously. Different proximity switches have different response capabilities to the detected objects. This response characteristic is called the "response frequency."

DTTECHNIC electrical component functions

When the distance between an observer or system and a wave source changes, the frequency of the approaching waves shifts; this phenomenon is called the Doppler effect. Sonar and radar are developed based on this principle. The Doppler effect can be used to create ultrasonic proximity switches, microwave proximity switches, etc. When an object approaches, the reflected signal received by the proximity switch undergoes a Doppler shift, allowing identification of whether an object is approaching. Proximity switches are widely used in aviation, aerospace technology, and industrial production. In daily life, they are applied in automatic doors in hotels, restaurants, and garages, as well as in automatic hot air blowers. For security and anti-theft purposes, important locations such as archives, accounting departments, financial institutions, museums, and vaults are typically equipped with anti-theft devices composed of various proximity switches. In measurement technology, such as for length and position measurements, and in control technology, such as for the measurement and control of displacement, speed, and acceleration, large numbers of proximity switches are also used.

DTTECHNIC electrical component principles

Light emission principle of laser diodes: The P-N junction in a laser diode is formed by two doped gallium arsenide layers. It has a parallel-end structure, parallel to a mirror at one end (highly reflective surface) and a partially reflective surface at the other. The wavelength of the emitted light is directly related to the length of the cavity. When the P-N junction is forward-biased by an external voltage source, electrons move through the junction and recombine as in a standard diode. When electrons recombine with holes, photons are released. These photons strike atoms, causing more photons to be released. As the forward bias current increases, more electrons enter the depletion region, leading to the emission of more photons. Eventually, some photons drifting randomly within the depletion region strike the reflective surfaces perpendicularly, reflecting back along their original path. The reflected photons are again reflected back from the other end of the junction. This movement of photons from one end to the other occurs multiple times continuously. During photon movement, due to the avalanche effect, more atoms release more photons. This process of reflection and generation of increasing numbers of photons produces a very intense laser beam. Each photon generated in the emission process described above is identical to other photons in energy level, phase relationship, and frequency. Therefore, the emission process yields a laser beam of a single wavelength. To generate a laser beam, the current of the laser diode must exceed a certain threshold level. Current below the threshold level forces the diode to behave as an LED, emitting incoherent light.

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