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In the design of electronic devices, diode As a basic component, it plays a vital role. diode The choice of is directly related to the performance, efficiency and reliability of the circuit. In many types of diode Medium, crystal diode And ultra fast recovery diode (Ultra Fast Recovery Diode, UFRD) is a common choice. This article will delve into these two diode To help circuit designers make more intelligent choices. 1、 Crystal diode Characteristic crystal diode Generally, it is composed of semiconductor materials such as silicon (Si) or germanium (Ge) diode 。 Its basic characteristics are as follows:
Date: September 24, 2024 Reading: 871
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In the course of the development of electronic technology, diode As a basic component, its importance is self-evident. Face contact type diode (also known as surface contact type diode ）It is one of the outstanding representatives in this field. Face contact type diode The evolution of not only reflects the progress of material science and engineering technology, but also reveals the increasingly complex and diverse needs of electronic equipment. 1、 Face contact type diode Basic structure and principle surface contact type of diode Its basic structure is a PN junction formed by the contact of P-type semiconductor and N-type semiconductor. Its working principle is based on the semiconductor physics, that is, the electric field formed in the PN junction makes electrons and holes migrate to realize rectification. When positive offset
Date: September 24, 2024 Reading: 871
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Blue light diode The working principle of quantum dots is a complex and important topic, involving many fields such as semiconductor physics, quantum dot technology and material science. This article will focus on Blu ray from multiple perspectives diode Its working principle is discussed in detail, including structure composition, luminescence mechanism, material characteristics, preparation process and application. 1、 Structure composition Blue light diode It is usually composed of multiple layers, mainly including p-type semiconductor layer, n-type semiconductor layer and intermediate active layer. In the formation of p-n junction, the p-type semiconductor layer is usually doped with materials such as aluminum or magnesium to produce positively charged holes; The n-type semiconductor layer is often doped with elements such as phosphorus or antimony to produce negatively charged electrons
Date: September 14, 2024 Reading: 863
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In modern electronic equipment, electrostatic discharge (ESD) is a common but potential hazard, which may cause irreversible damage to electronic components. In order to deal with this problem, diode As an electrical device, it plays a vital role. This article will discuss ESD maintenance in depth diode Key role in protecting electronic equipment. 1、 The mechanism of electrostatic discharge and its influence on the charge separation between electrostatic discharge sources and electronic components or between components and the environment. When the charge accumulates to a certain extent, it suddenly releases and forms current, which is called electrostatic discharge. ESD usually occurs in the following situations: people touch the surface of the device, plug and pull the connecting line between devices, and connect external devices. E...
Date: September 14, 2024 Reading: 862
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photosensitive diode As two common photosensitive elements, and photoresistors, although they can be interchanged in some cases, this exchange is limited due to their differences in response time, sensitivity and application scenarios. In this paper, their basic principles, functional characteristics and their respective application fields are discussed in depth to provide guidance for practical selection. As two common photosensitive elements, photosensitive diode And photoresistors can indeed be used interchangeably in some cases, but this exchange is limited by many factors, including practical applications, photoelectric performance requirements, response time, sensitivity, etc. 1、 Photosensitivity diode And photosensitive resistor 1 photosensitive diode Photosensitive II
Date: August 27, 2024 Reading: 841
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diode It is a semiconductor component widely used in electronic circuits. Its core feature is unidirectional conduction, that is, the current can only flow from the anode to the negative stage, but not from the cathode to the positive stage. This feature promotes diode It has various functions on circuit boards such as rectifier, voltage regulator, switch, etc. diode The volt ampere characteristic curve of diode The line of current change under various operating voltages. By analyzing DMN65D8LDW-7 diode The volt ampere characteristic curve of diode Operating principle and functional characteristics of. I diode Operating principle According to the characteristics of PN junction of semiconductor devices, diode Working principle of. PN junction is composed of P-type semiconductor and N-type semiconductor materials
Date: August 16, 2024 Reading: 829
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laser diode (Laser Diode, commonly known as LD) is a semiconductor laser device that can immediately convert electromagnetic energy into laser, playing a vital role in modern technology industry. Here is the laser diode The related introduction of, including working principle, structure, functional characteristics, main uses and development trends. 1、 Laser diode According to the stimulated radiation effect of semiconductor devices diode Working principle of. In semiconductors, when electronic devices are transferred from high energy level to low energy level, kinetic energy will be released, and these energies will be transferred in the form of photons. According to special structural design and mixed processing technology, laser diode Anti
Date: August 9, 2024 Reading: 821
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diode In the delay circuit, it plays a role of fast discharge, protecting the circuit and improving the stability of reset operation, so as to ensure that the circuit can recover quickly in case of abnormal power supply. Choose the right diode Type and specification are crucial to improve the overall performance of the system. In the delay circuit, add diode There are several key reasons related to the stability, stability and protection mechanism of the circuit. The following is why the delay circuit should be increased diode Detailed analysis of. 1、 The basic concept and type of delay circuit Delay circuit is a circuit device used to restore the circuit to the initial state. Its operating principle is similar to the reset button of a calculator. Its purpose is to make the circuit or equipment return to
Date: July 25, 2024 Reading: 803
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TVS diode As a key electronic protection element, it can effectively protect the power circuit by quickly responding to abnormal overvoltage, and is widely used in automotive electronics, industrial control, communication equipment, household appliances and other fields. Its high reliability and adaptability make it an indispensable part of modern electronic equipment. In the future, with technological progress, TVS diode The performance of will be further improved to provide a more comprehensive power protection solution. TVS diode Transient Voltage Suppressors, also known as avalanche breakdown diode , is the main component for maintaining electronic circuits. It is made of CD4068BM96 chip
Date: July 25, 2024 Reading: 802
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SS14 is a Schottky diode , is a semiconductor device specially designed for electronic applications. Schottky barrier diode It is formed through metal semiconductor contact, and is connected with the traditional PN junction diode Different, which makes them have lower forward voltage drop and faster recovery time. Basic overview SS14 is a standard model in the industry, representing a single Schottky diode , the packaging form is SMA (DO-214AC), which is a surface mount device. The maximum reverse voltage of this model is 40 volts (VRRM=40V), the maximum forward current is 1 ampere (IF=1A), and the peak surge current is 30 amperes (Ifsm=30A). Work
Date: July 24, 2024 Reading: 801
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SMD glow diode Surface Mount LED (SMD LED for short) is a common light emitting device diode Packaging form. Compared with traditional plug-in lighting diode In comparison, DMN5L06WK-7 patch emits light diode It has the advantages of small size, light weight, good impact resistance and high reliability. It is widely used in various electronic devices, lighting products, displays and indicators. This article will introduce the chip luminescence in detail diode Its principle, characteristics, application and manufacturing process. 1、 SMD glow diode Principle of SMD diode It is an electronic device based on semiconductor materials. It uses the characteristics of semiconductor materials
Date: July 10th, 2024 Reading: 785
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Single photon avalanche diode Single Photon Avalanche Diode (SPAD) is a solid-state photoelectric device used to detect a single photon. It is one of the core devices for lidar to realize solid-state. The principle of SPAD is based on the avalanche effect, which has the characteristics of high sensitivity, fast response and low noise, so it is widely used in photon counting, photon detection, time measurement, CY7B9234-270JC laser radar and other fields. SPAD is a specially designed unipolar diode , it works under reverse offset. By applying sufficient reverse voltage, when photons incident into SPAD, they will
Date: July 5, 2024 Reading: 780
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rectification diode It is a semiconductor device, also known as diode 。 In electronic circuits, rectification diode As a key component, it is often used to convert AC electrical signals into DC electrical signals. Its main function is to make the current pass in only one direction, so as to realize the unidirectional conduction of current. rectification diode It is composed of P-type semiconductor and N-type semiconductor, and has two semiconductor regions with different doping levels. In the electronic circuit, DMC2004VK-7 rectifies diode It is often used in the rectification circuit of the power supply part to convert the AC power supply to the DC power supply. For example, rectifier is widely used in DC power adapter, rectifier power supply and other circuits diode 。 In addition, rectification
Date: July 4, 2024 Reading: 779
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power diode Diodes are semiconductor devices used to control the direction of current flow. They have many important applications, such as power supply, variable frequency drive, electric vehicles, communication systems and consumer electronics. In this article, I will introduce power diode Composition, characteristics, principle, classification, common faults and preventive measures of. Composition and characteristic power diode It is usually composed of P-type semiconductor and N-type semiconductor materials, which have the following characteristics: 1 Unidirectional conductivity: power diode It has unidirectional conductivity of DS80C320 and only allows current to flow in one direction, which is determined by the characteristics of P-N structure. 2. Withstand voltage:
Date: June 26, 2024 Reading: 769
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switch diode (Schottky diode) and TVS diode (Transient Voltage Suppression diode) are common diode Type plays an important role in electronic circuits. Next, I will introduce their characteristics in detail and how to select switches correctly diode And TVS diode 。 1. Switch diode switch diode It is a fast and efficient semiconductor diode , with the following characteristics: - Low forward voltage drop: CS5341-CZZ switch due to its metal semiconductor contact diode The forward voltage drop of diode Lower, which helps
Date: June 25, 2024 Reading: 766
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With the continuous development of automotive electronic systems, the requirements for reliability and stability of vehicle power supply are increasing. Modern cars are equipped with a large number of electronic control units (ECUs), sensors, communication modules and entertainment systems, all of which need stable and reliable power supply. Redundant power topology is an effective technical means, which can improve the reliability of the system and the stability of the power supply. In a redundant power topology, ideal diode The controller plays a vital role. Overview of redundant power topology Redundant power topology refers to the use of multiple power supplies in the system to ensure that other power supplies can continue to supply power when one power supply fails, so as to ensure the continuity of the system. For steam
Date: June 18th, 2024 Reading: 758
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Schottky barrier diode (Schottky Diode) is a kind of diode , and common PN junction diode In contrast, it has lower voltage drop and fast switching characteristics of dss4240t-7. Schottky barrier diode It is mainly composed of metal end (anode) and semiconductor material end (cathode). The structure between metal end and semiconductor material can achieve higher carrier injection speed and lower recovery time, so it is widely used in high-frequency and fast switching applications. Schottky barrier diode Its features and advantages include: 1 Low voltage drop: because there is no dissipative forward breakdown zone at the contact between metal and semiconductor
Date: June 5, 2024 Reading: 745
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Insulated Gate Bipolar Transistor (IGBT) is a semiconductor device widely used in the field of power electronics. Because of its high efficiency, high speed and high voltage processing capability, it has become the core component in power transmission and conversion systems. However, IGBT will produce high energy loss in the switching process, especially in high-frequency applications, this power consumption problem becomes more prominent. In order to meet this challenge, researchers and engineers are constantly exploring various technical means to reduce the power consumption of IGBT. Among them, the built-in silicon carbide (Jane
Date: June 3, 2024 Reading: 741
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Photoresistor and photoelectric diode Photodiode are all photoelectric sensors, which are significantly different in responding to changes in light intensity. The frequency response of photoresist is far lower than that of photoelectric diode , which is mainly determined by their working principles and material properties. The working principle of the photoresistor The photoresistor is made by using the photoconductive effect of semiconductor materials. When light strikes the photoresistor, the photon energy will make the electrons in the semiconductor material jump to the conduction band, thus producing free electron and hole pairs, which increase the conductivity of the material. Therefore, the resistance value of the photoresistor will decrease with the increase of light intensity
Date: May 28, 2024 Reading: 735
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In the circuit design of electronic products, in order to ensure the stable operation of equipment in the complex and changeable electromagnetic environment and prevent damage caused by electrostatic discharge (ESD) and transient voltage suppression (TVS), it is usually necessary to consider adding corresponding protective elements. TVS diode And ESD static electricity diode They are two common protection elements with different application scenarios and characteristics. TVS diode TVS diode , also called transient voltage suppression diode The main function is to provide overvoltage protection in the circuit. It can quickly change from high impedance state to high impedance state when the voltage exceeds the set breakdown voltage
Date: May 20, 2024 Reading: 725
