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deutsche techna electrical components refer to integrated circuits in which analog circuits composed of capacitors, resistors, transistors, and other elements are integrated to process analog signals. There are many analog integrated circuits, such as operational amplifiers, analog multipliers, phase-locked loops, and power management chips. The main constituent circuits of analog integrated circuits include amplifiers, filters, feedback circuits, reference source circuits, and switched-capacitor circuits. Analog integrated circuit design is mainly achieved through manual circuit debugging and simulation by experienced designers, whereas corresponding digital integrated circuit design is mostly automatically synthesized under the control of EDA software using hardware description languages. Integrated circuits can be divided into two major categories based on their function and structure: digital IC and analog IC. Digital IC are used to generate, amplify, and process various digital signals (signals that vary discretely in time and amplitude). Analog IC are circuits used to generate, amplify, and process various analog signals (signals whose amplitude varies continuously with time). They are one of the core technologies of microelectronics, capable of acquiring, amplifying, comparing, converting, and modulating analog quantities such as voltage or current.

deutsche techna electrical component functions

The main functions of potentiometers in circuits include several aspects: 1. Used as a voltage divider. A potentiometer is a continuously adjustable resistor. When the knob or slider of the potentiometer is adjusted, the movable contact slides along the resistive element. In this case, an output voltage related to the external voltage applied to the potentiometer and the angle or travel of the movable arm can be obtained at the output terminal. 2. Used as a variable resistor. When a potentiometer is used as a variable resistor, it should be connected as a two-terminal device, so that a smoothly and continuously changing resistance value can be obtained within the travel range of the potentiometer. 4. Used as a current controller. When a potentiometer is used as a current controller, one of the selected current output terminals must be the terminal led out from the sliding contact.

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Antennas radiate radio waves and also receive radio waves. However, what the transmitter feeds into the antenna through the feed line is not radio waves, nor can the receiving antenna directly send radio waves into the receiver through the feed line; an energy conversion process must take place. Below, we analyze the signal transmission process using radio communication equipment as an example to illustrate the energy conversion role of antennas. At the transmitting end, the modulated high-frequency oscillating current (energy) generated by the transmitter is input to the transmitting antenna via feeding equipment (the feeding equipment may directly transmit current waves or electromagnetic waves depending on frequency and form). The transmitting antenna converts the high-frequency current or guided wave (energy) into radio waves—free electromagnetic waves (energy)—radiating them into the surrounding space. At the receiving end, radio waves (energy) are converted by the receiving antenna into high-frequency current or guided waves (energy), which are transmitted to the receiver via feeding equipment. From the above process, it can be seen that the antenna is not only a device for radiating and receiving radio waves, but also an energy converter, serving as the interface component between the circuit and space.

deutsche techna electrical component principles

In information technology, digital integrated circuits play the leading role, processing information carried by digital signals, which take discrete values in terms of time and magnitude. However, signals in nature change continuously in time and magnitude, such as wind noise and water flow; such signals are called analog signals. Correspondingly, circuits that process analog signals are called analog circuits, and integrated circuits used to process analog signals are called analog integrated circuits. Obviously, digital circuits cannot directly interact with the natural world. For the convenience of processing or transmission, and to fully utilize the advantages of digital systems, analog signals are first converted into digital signals, processed by modern digital systems with large capacity, high speed, strong anti-interference capability, and good confidentiality, and then reconverted into analog signals for output. Transistors are the main components of integrated circuits, and analog integrated circuits are no exception. However, they utilize the amplification effect of transistors, whereas digital integrated circuits utilize the switching effect of transistors. Early analog integrated circuits mostly used bipolar transistors. Due to the maturity of CMOS technology, the disadvantage of slow speed in early CMOS circuits has been overcome, and it offers advantages such as low power consumption and convenient process upgrades (proportional scaling of CMOS). Today, CMOS is also commonly used to design and implement analog integrated circuits and mixed-signal integrated circuits (where digital and analog circuits are integrated together).

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