Top 12 Semiconductor Device Examples on YouTube
Examples of semiconductor devices include transistors, diodes and integrated circuits, field effect transistors, thyristors, etc.
Transistor is the most basic semiconductor device, its function is signal amplification and switching control.
Diodes have unidirectional conductivity and are widely used in rectification and detection circuits. Integrated circuits integrate multiple electronic components on a substrate to achieve specific functions, greatly simplifying circuit design and assembly processes.
Here are the top 12 semiconductor device examples on YouTube:
Diode
A diode is an electronic device made of semiconductor materials (silicon, selenium, germanium, etc.). It has two electrodes, one is positive and the other is negative.
When a forward voltage is applied between the two poles of the diode, the diode conducts; when a reverse voltage is applied, the diode turns off. Therefore, the diode has unidirectional conductivity.
When it is turned on, the direction of current flows from the anode through the tube to the cathode. Diodes are one of the earliest semiconductor devices and are used in a wide range of applications.
Triode
Triode is a semiconductor device that controls current. Its function is to amplify weak signals into electrical signals with larger amplitudes. It is also used as a contactless switch. In fact, a triode is composed of two diodes, so it has the characteristic of unidirectional conduction.
The transistor is made of two PN junctions that are very close to each other on a semiconductor substrate. The two PN junctions divide the entire semiconductor into three parts. The middle part is the base area, and the two sides are the emitter area and the collector area. The arrangement is PNP and NPN. When the transistor is in working condition, its base current Ib controls the collector current Ic, and the emitter current Ie is equal to the collector current Ic minus the base current Ib, that is, Ic=Ib+Ie.
The functions of the transistor include amplifying weak signals into electrical signals with larger amplitudes and serving as contactless switches. In electronic circuits, triodes are often used as amplifiers or switching circuits.
Darlington tube
A Darlington Transistor is a compound semiconductor device composed of two bipolar transistors whose output current is twice the input current. Darlington tubes have a very high amplification factor, which can reach hundreds or even thousands of times, so they are widely used in high-amplification circuits.
Darlington tubes are characterized by high current gain and low noise performance, and can achieve linear amplification of current. Due to its high amplification and low noise characteristics, Darlington tubes are widely used in audio amplifiers, servo systems, control systems and other fields. In addition, it can also be used in high-power switching circuits, motor drives, power amplification and other fields.
There are two basic types of Darlington tubes: coemitter-cobase and cobase-cobase. The cascode-cascode Darlington connects the collectors of two transistors. The input signal is input from the base of the first transistor, and the output signal is output from the collector of the second transistor. Common-base Darlington connects the bases of two transistors, the input signal is applied to the bases of both transistors at the same time, and the output signal is output from the collector of the first transistor.
In short, the Darlington tube is a high-performance, high-reliability semiconductor device with wide application prospects and market demand. As technology continues to advance and application demands continue to grow, the design and manufacturing technology of Darlington tubes will continue to develop and improve.
LED semiconductor devices
LED (Light Emitting Diode) is a solid-state semiconductor device that can directly convert electrical energy into light energy. Its core part is a semiconductor wafer. When current passes through this wafer, electrons and holes recombine and emit energy in the form of photons.
The LED chip is composed of two parts, one part is a P-type semiconductor, where holes dominate; the other end is an N-type semiconductor, where electrons are dominant. When these two semiconductors are connected, a P-N junction is formed between them.
When an electric current acts on this wafer through a wire, electrons are pushed to the P region, where they recombine with holes and then emit energy in the form of photons.
The main function of an LED is to emit light, and the color of its light can be adjusted by changing the semiconductor material. The color of an LED depends on the material forming the P-N junction, and the wavelength and color of the light are determined by the energy gap of the semiconductor.
For example, red LEDs have an energy gap of approximately 1.63eV, while blue and green LEDs have higher energy gaps of approximately 2.26eV and 2.58eV respectively.
LEDs are widely used in lighting, display, signal indication and other fields. For example, in displays, LEDs can be used as backlight sources or directly as display pixels; in traffic lights, LEDs can be used to make red, yellow, and green signal lights; in cars, LEDs can be used for headlights; in decorative lighting , LEDs can be used to create a variety of colorful and flashing effects.
Field Effect Transistor
Field Effect Transistor (FET) is a common semiconductor device. Its working principle is to control the conductive properties of semiconductor materials by changing the electric field, thereby achieving signal amplification or switching control.
A field effect transistor is mainly composed of three electrodes, namely source, gate and drain. When a voltage is applied between the gate and source, an electric field is created in the semiconductor material, controlling the current flow between the source and drain.
Since the conductive properties of field effect transistors are related to the intensity of the electric field, they have high input impedance and noise suppression capabilities, which makes field effect transistors widely used in many fields.
According to different structures and working principles, field effect transistors can be divided into junction field effect transistors (JFET) and metal oxide semiconductor field effect transistors (MOSFET). Among them, MOSFET is one of the most widely used field effect transistors at present.
It has the characteristics of high speed, low noise, low power consumption, etc., and is widely used in amplifiers, switching power supplies, motor drives and other fields.
In short, the field effect transistor is a high-performance, high-reliability semiconductor device with wide application prospects and market demand.
As technology continues to advance and application demands continue to grow, the design and manufacturing technology of field effect transistors will continue to develop and improve.
Thyristor
Thyristor is the abbreviation of thyristor, also known as silicon controlled rectifier. It was previously referred to as silicon controlled rectifier. It is a PNPN four-layer semiconductor structure with three poles: anode, cathode and gate.
The working conditions of the thyristor are: forward voltage is applied and the gate has trigger current. Its derivative devices include: fast thyristor, bidirectional thyristor, reverse conduction thyristor, light-controlled thyristor, etc. It is a high-power switching semiconductor device, represented by the text symbols “V” and “VT” in the circuit (represented by the letters “SCR” in the old standard).
Thyristors have the characteristics of silicon rectifier devices and can work under high voltage and large current conditions, and their working process can be controlled.
They are widely used in controlled rectification, AC voltage regulation, non-contact electronic switches, inverters and frequency conversion electronics. in the circuit.
Integrated Circuit ( IC )
An integrated circuit is a miniature electronic device or component that interconnects the transistors, resistors, capacitors, inductors and other components and wiring required in a circuit, and is made on a small or several small semiconductor wafers or dielectric substrates.
It is then packaged in a tube and becomes a microstructure with the required circuit functions. The inventors of the integrated circuit are Jack Kilby (integrated circuits based on germanium (Ge)) and Robert Noyce (integrated circuits based on silicon (Si)).
Integrated circuits play an important role in modern electronic equipment. It is the core part of electronic equipment and can realize various complex functions, such as computing, communication, control, etc. The manufacturing of integrated circuits requires multiple process steps, including oxidation, photolithography, diffusion, epitaxy, aluminum evaporation, etc.
The manufacturing process is extremely complex. With the development of technology, the integration level of integrated circuits continues to increase, the performance becomes more and more powerful, and the size is getting smaller and the power consumption is getting lower and lower.
Integrated circuits are widely used in almost every field, such as computers, communications, consumer electronics, medical care, industrial control, etc. For example, the CPU in a computer, the GPU in a graphics card, and the chip in a mobile phone are all examples of integrated circuits. In the future, with the advancement of technology and the expansion of applications, integrated circuits will continue to develop and grow.
Power Electronics
Power Electronic Devices, also known as power semiconductor devices, are mainly used for high-power electronic devices in power conversion and control circuits of power equipment (usually referring to currents ranging from tens to thousands of amperes and voltages of hundreds of volts above).
Power electronic devices can be divided into semi-controlled devices, fully controlled devices and uncontrollable devices.
Thyristors are semi-controlled devices with the highest voltage and current capacity among all devices; power diodes are uncontrollable devices with simple structure and principle and reliable operation; they can also be divided into voltage-driven devices and current-driven devices, among which GTO, GTR is a current-driven device, and IGBT and power MOSFET are voltage-driven devices.
Microelectromechanical Systems (MEMS) devices
A microelectromechanical system (MEMS) device is a microdevice or system that integrates micromechanisms, microsensors, microactuators, and signal processing and control circuits. It is based on micro/nano technology and uses semiconductor materials and processes for design and manufacturing. It has the advantages of small size, light weight, low power consumption and high reliability.
The manufacturing of MEMS devices requires multiple process steps, including material selection, structural design, manufacturing process, packaging, etc.
The manufacturing process requires the use of micro-machining technologies, such as photolithography, etching, thin film deposition, etc., to achieve micron-level precision processing. Common MEMS devices include micro-sensors, micro-actuators, micro-pumps, micro-valves, micro-gears, micro-springs and micro-optical devices.
MEMS devices are widely used in various fields, such as automotive electronics, medical equipment, aerospace, environmental monitoring, consumer electronics, etc.
For example, the acceleration sensor in a car airbag is a MEMS device, used to detect changes in acceleration during a collision; the gyroscope and accelerometer in a smartphone are also MEMS devices, used to implement functions such as automatic rotation and gesture recognition.
In the future, with the development of MEMS technology and the expansion of applications, MEMS devices will become more intelligent and multi-functional, and are expected to play a greater role in the Internet of Things, smart manufacturing and other fields.
Optical semiconductor devices (such as lasers, photodetectors, etc.)
Optical semiconductor devices refer to devices made by utilizing the optical properties of semiconductors and are mainly used in the field of optoelectronics. The following are some common optical semiconductor devices:
Light-emitting diode (LED)
An electroluminescent device that converts electrical energy into light radiation.
Laser diode (LD)
A semiconductor device that generates laser light, often used in fiber optic communications, optical disk storage and other fields.
Optical detector
A device that converts optical signals into electrical signals. It is often used in optical fiber communications, environmental monitoring and other fields.
Photomultiplier tube (PMT)
A highly sensitive light detector commonly used in night vision, spectral analysis and other fields.
Solar cell
A device that converts light energy into electrical energy and is the core part of the solar power generation system.
Photoconductivity sensor
A sensor made using the photoconductivity effect of semiconductors, which is often used in fields such as light intensity and light spot positioning.
Phototransistor
A semiconductor device that uses light signals to control current. It is often used in optical communications, light detection and other fields.
Optical crystal
A semiconductor material that can control the propagation of light waves. It is often used in fields such as generating lasers and modulating optical signals.
These optical semiconductor devices play an important role in the field of optoelectronics and promote the development and application of optoelectronic technology.
Sensors (such as temperature sensors, pressure sensors, etc.)
A sensor is a detection device that can sense measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the needs of information transmission, processing, storage, display, recording and control. Require. Semiconductor sensors refer to sensors that use the physical or chemical effects of semiconductors to sense and convert physical quantities, chemical quantities, or biological quantities.
There are many types of semiconductor sensors, including temperature sensors, humidity sensors, pressure sensors, flow sensors, gas sensors, ion sensors, etc.
They have the advantages of small size, high precision, good stability, and strong anti-interference ability, so they are widely used in industrial automation, environmental protection, medical care, smart home and other fields.
The working principle of semiconductor sensors is mainly based on the physical or chemical effects of semiconductors.
For example, semiconductor temperature sensors work based on the Seebeck effect or Peltier effect; semiconductor gas sensors use the adsorption of gas on the semiconductor surface to cause changes in the resistance or capacitance of the semiconductor to detect The composition and concentration of the gas.
With the development of the Internet of Things and smart devices, the application prospects of semiconductor sensors are even broader.
In the future, semiconductor sensors will be more intelligent, miniaturized, and multifunctional, bringing more convenience to human production and life.
Application Specific Integrated Circuit (ASIC)
Application-Specific Integrated Circuit (ASIC) is a customized, dedicated integrated circuit chip that is usually designed and manufactured according to the needs of specific users and the requirements of specific electronic systems.
ASIC chips have the advantages of high integration, high performance, low power consumption, and high reliability, so they are widely used in many fields.
ASIC chips go through multiple stages in their design and fabrication. First, the function and performance parameters of the chip need to be determined according to the user’s needs, and then logic design, circuit design, layout design, etc. are carried out. Then, the designed layout is handed over to the semiconductor manufacturing factory for processing, and finally the ASIC chip is obtained.
ASIC chips can be divided into two types: fully custom ASIC and semi-custom ASIC. A fully custom ASIC is a chip that is completely customized according to the user’s needs and requires the entire circuit to be designed and manufactured; while a semi-custom ASIC can be pieced together using cells from a standard cell library and only requires the design of part of the circuit.
ASIC chips are widely used in many fields, such as communications, military, aerospace, industrial control, consumer electronics, etc.
For example, in the field of communications, ASIC chips can be used for baseband processing, radio frequency processing, optical communications, etc.; in the military field, ASIC chips can be used for missile guidance, radar signal processing, etc.
In short, application specific integrated circuit (ASIC) is a high-performance, high-reliability semiconductor device with wide application prospects and market demand. As technology continues to advance and application requirements continue to grow, the design and manufacturing technology of ASIC chips will continue to develop and improve.
These semiconductor devices are widely used in various fields of electronic equipment and systems. For example, their application examples can be found in computers, communications, consumer electronics, industrial automation, automotive electronics and other fields.
Semiconductor purchasing wholesaler
Semiconductor device suppliers refer to companies that provide semiconductor device products. These companies usually have cooperative relationships with semiconductor manufacturing plants, electronic manufacturers, etc., and provide various types of semiconductor devices, such as transistors, diodes, integrated circuits, etc. Supplier strength and credibility are critical to electronics manufacturers because the quality and reliability of their products directly affects the performance of the final product.
Top 12 Semiconductor Device Examples FAQs on YouTube
MOSFETs and junction field effect transistors are both semiconductor devices, but there are significant differences. MOSFET is a voltage-controlled device that controls the drain current by controlling the gate voltage. It has the advantages of strong driving capability, high reliability, small size, and low power consumption. It is suitable for electronic switches, signal amplification, rectifiers and other fields. The junction field effect transistor is a current-controlled device that controls the drain current by controlling the base current. It has the advantages of high voltage gain, low noise, and low distortion, and is suitable for low-frequency amplification applications. Therefore, MOSFET and junction field effect transistor have their own characteristics in structure and application, and they need to be selected according to specific needs.
Semiconductors refer to materials whose electrical conductivity at room temperature is between conductors and insulators.
MOSFETs and junction field effect transistors each have their own advantages and disadvantages. MOSFET has the advantages of high input impedance, low noise, low power consumption, and high switching speed, and is suitable for high-frequency applications, such as audio amplifiers and radio frequency receivers. The junction field effect transistor has the advantages of high reliability, stability, and strong controllability, and is suitable for switching, amplification, and adjustment functions in analog circuits and digital circuits.
The advantages of thyristor 7BA1 are high efficiency and high reliability, but the disadvantage is limited fast turn-on and turn-off capabilities.
Thyristor 7BA1 is a unidirectional silicon controlled rectifier device, mainly used in AC voltage regulation, motor control, lighting control and other fields.
Thyristor switch is a high-power switching semiconductor device with controllable unidirectional conductivity.
A PN channel field effect transistor is a semiconductor device whose conductive channel is formed by a structure between a P-type semiconductor and an N-type semiconductor. By controlling the gate voltage, the carrier distribution in the channel can be modulated, thereby controlling the drain current. size. This device has the advantages of high input impedance, low noise, and low power consumption, and is widely used in electronic circuits.
An integrated circuit is a miniature electronic component that integrates multiple electronic components on a substrate to complete certain circuit or system functions. Semiconductors refer to materials whose electrical conductivity at room temperature is between conductors and insulators. Integrated circuits are made of semiconductor materials and implement various circuit functions in a tiny volume.
Power electronic devices can be divided into semi-controlled devices and uncontrollable devices according to their control characteristics. A semi-controlled device is a device that can be controlled to be turned on but cannot be controlled to turn off through a control signal, such as a thyristor. Uncontrollable devices are devices whose on-off is completely determined by the operating voltage or current, such as power diodes.
Both integrated circuits and semiconductors can be used as computer CPU chips, but integrated circuits are more suitable for large-scale integration, while semiconductors are more suitable for small-scale integration. Therefore, integrated circuits are more common in the manufacture of computer CPU chips.
There is no obvious advanced difference between integrated circuits and semiconductors. Both are important components of modern electronic technology, and each has different applications and advantages in specific fields. Integrated circuits are microelectronic components that integrate multiple electronic components on a substrate to complete certain circuit or system functions. They have the advantages of miniaturization, high performance, and low cost. Semiconductors refer to materials whose electrical conductivity at room temperature is between conductors and insulators. They have a wide range of applications and are of important strategic significance. In some specific cases, integrated circuits and semiconductors may be used complementary or alternatively to each other, so one cannot simply say which one is more advanced.
The computer CPU chip is the physical implementation of the Central Processing Unit (Central Processing Unit) and is the core component of the computer responsible for executing instructions, processing data and controlling hardware.
Power diode is an electronic component that can withstand high voltage and large current. It is widely used in rectifier equipment of various high-voltage DC power supplies.
Thyristor power diode is a semiconductor device capable of controlling large current and voltage, and is widely used in power electronic equipment and strong current control systems. It is characterized by realizing unidirectional conduction within a larger current and voltage range and being able to control a larger load current by applying a smaller control signal.
A thyristor rectifier is a power electronic device that uses thyristors to convert AC to DC power. It consists of multiple thyristors, each of which controls the behavior of the current. The thyristor rectifier accepts alternating current input, and after rectification and transformation, outputs stable direct current.
NPN type and PNP type transistors are two different types and structures of semiconductor transistors. The main difference lies in the voltage relationship between their base and emitter and the current flow direction.
The PN junction is a semiconductor structure composed of an N-type semiconductor and a P-type semiconductor. The interface between the two semiconductors forms a special thin layer with unidirectional conductivity. In P-type semiconductors, holes are majority carriers, and in N-type semiconductors, electrons are majority carriers. When P-type and N-type semiconductors are combined, due to the difference in carrier concentration, some multipliers diffuse through the interface to the other side, leaving immovable charged ions, forming a space charge region. In the PN junction, the diffusion of electrons and holes causes current to flow from the N-type side to the P-type side, forming a forward current. At the same time, the reverse current is very small. This phenomenon is called the unidirectional conductivity of the PN junction.
Silicon controlled rectifier is an electronic device that uses the characteristics of silicon controlled rectifier (SCR) to control and regulate current. SCRs have many advantages such as high efficiency, no mechanical noise and wear, fast response, small size, and light weight. They are widely used in industrial automation systems, frequency conversion speed regulation, photovoltaic power generation and other fields.
AC to DC is the process of converting alternating current into direct current, usually through a rectifier. A rectifier is an electronic device that converts alternating current into direct current. It is widely used in various situations that require direct current power. Its working principle is to rectify the positive and negative half cycles of alternating current into waveforms of opposite polarity of direct current through the unidirectional conductivity of the rectifier diode, so that the output terminal obtains stable direct current.
An inverter is an electronic device that converts DC power into AC power. It is commonly used in various situations where batteries or DC power supply need to be converted into AC power.
Antielectron holes are a concept corresponding to ordinary electrons and holes, which exist in certain materials, such as wide bandgap semiconductor materials such as gallium nitride. Under the influence of a strong electric field, the electrons in gallium nitride will gain enough energy to jump into the conduction band, leaving a vacancy, that is, a hole. This hole is negatively charged and is called an antielectron hole.
Transistors can amplify electrical signals because the voltage relationship between their base and emitter and the direction of current flow can control the size and direction of the collector current, thereby amplifying the signal.
Excellent transistor brands include ROHM, ONsemi, ST, WeEn, VISHAY, DIODES, China Resources Microelectronics, etc.
Gallium nitride is an inorganic substance with the chemical formula GaN. It is a compound of nitrogen and gallium. It is a direct bandgap semiconductor and has been commonly used in light-emitting diodes since 1990. This compound has a structure similar to wurtzite, has high hardness and a large bandgap. It can be used in high-power, high-speed optoelectronic devices. For example, gallium nitride can be used in violet laser diodes, which can produce light without the use of nonlinear semiconductor-pumped solid-state lasers. Violet (405nm) laser.
In addition, gallium nitride is also one of the core materials of the third generation semiconductor. It has the advantages of high switching frequency, large band gap, and lower on-resistance. This material is usually used in LED (lighting, display), radio frequency communications and In the field of high-frequency power devices, mobile phone fast charging is one of the representative applications of gallium nitride in the field of high-frequency power devices. Compared with traditional fast charging, gallium nitride fast charging has greater power density, faster charging speed, smaller size and easy portability, which can meet consumers’ dual needs for fast charging and lightweight electronic products.
The shortcomings of MEMS devices mainly include insufficient mechanical strength and stability, high manufacturing costs, reliability issues, insufficient integration, and immature production processes.
The advantage of MEMS devices is that they can realize micro-nanoscale measurement and perception of complex mechanical motion and various physical quantities (such as force, heat, light, sound, etc.), and have the characteristics of miniaturization, high precision, high reliability, low energy consumption, and low cost. and other advantages, so it is widely used in automobiles, aerospace, biomedical and other fields.
The advantages of MEMS devices are: small size, light weight, low power consumption, high reliability, high sensitivity, easy integration, etc.
The main characteristics of MEMS devices are miniaturization, high precision, high reliability, low energy consumption, low cost, etc. In addition, MEMS devices also have the advantages of high sensitivity, fast response, and mass production. These characteristics make MEME devices have broad application prospects in many fields.
The main difference between MEMS devices and silicon-based chips is the manufacturing process and use. Silicon-based chips integrate multiple electronic components on a silicon chip to realize circuit and system functions. They are mainly used in the manufacturing of integrated circuits, such as computer processors, memories, etc. MEMS devices integrate tiny mechanical structures with electronic circuits and are mainly used in the manufacture of sensors, actuators and other devices, such as accelerometers, gyroscopes, etc. There are major differences between the two in terms of manufacturing processes, materials, structures, etc.
Laser technology is widely used in various fields, such as industrial production, medical care, military, scientific research, etc. For example, lasers are used to manufacture various materials, perform metal cutting, marking, welding, etc.; in the medical field, lasers are used in surgeries, treatment of various diseases, etc.; in the military field, lasers are used in guided weapons, lidar, etc. etc.; In the field of scientific research, lasers are used for spectral analysis, measurement, etc.
A laser transmitter is a device that uses the principle of stimulated emission of light to generate and amplify laser light. It is an electronic light source device that can produce collimated, monochromatic and coherent beams. It usually consists of main components such as laser medium and pump source, and is widely used in various fields.
Fiber optic transmission is a communication method that uses optical fibers as transmission media, and information is transmitted through the transmission of optical signals in optical fibers. Optical fiber transmission has the advantages of long transmission distance, fast speed, wide frequency bandwidth, large information capacity, strong anti-interference ability, and good confidentiality. It is one of the main transmission methods of modern communication networks.
LED has the characteristics of high efficiency, environmental protection, safety, small size, fast response speed, impact resistance, good weather resistance, good directionality, rich colors, and long life.
The development history of optical semiconductor devices can be traced back to the last century. With the continuous development of information technology, optical semiconductor devices have been widely used in communications, sensing, lighting and other fields. Among them, the invention and promotion of optical fibers made optical signal transmission possible, thus promoting the development of optical communication technology. In addition, the invention of lasers also provided important support for the development of optical semiconductor devices. Today, optical semiconductor devices have become an important part of modern information technology, bringing great convenience to people’s lives and work.
The advantages of optoelectronic semiconductor devices include high photoelectric conversion efficiency, high response speed, easy integration, etc. Its disadvantages include poor temperature stability and high noise.
A humidity sensor is a sensor that senses humidity and converts it into a usable output signal. It is used to measure the humidity in the environment and provide associated electrical signals for further processing or control.
There are mainly the following types of semiconductor devices for sensors:
Resistive sensor: Uses the resistance change of semiconductor materials to measure parameters such as temperature, pressure, humidity, etc.
Capacitive sensor: uses the capacitance change of semiconductor materials to measure parameters such as displacement, angle, vibration, etc.
Voltage sensor: uses the voltage effect of semiconductor materials to measure parameters such as temperature, pressure, magnetic field, etc.
Current sensor: Use the current effect of semiconductor materials to measure parameters such as temperature, pressure, humidity, etc.
Hall sensor: uses the Hall effect of semiconductor materials to measure parameters such as magnetic field and current.
These sensors are widely used in various fields, such as industrial automation control, environmental monitoring, medical equipment, aerospace and other fields.
A general-purpose integrated circuit refers to an integrated circuit that can realize a variety of different functions of electronic components integrated onto a chip. This kind of integrated circuit can realize various functions such as data processing and power control through electrostatic control, so it is widely used in various industries.
Poor temperature stability means that during the working process of electronic components such as optoelectronic semiconductor devices, their performance parameters are easily affected by changes in ambient temperature, causing the output to be unstable or deviate from expected values.
Common-emitter-common-base Darlington tubes and common-base-complex Darlington tubes are two different types of Darlington tubes. The cascode-cascode Darlington is composed of two triodes, one of which acts as a basic amplifier and the other acts as an emitter follower. The two triodes are connected together through a common base. The common-base Darlington tube is composed of two triodes connected by a common base. Each triode has an independent base and collector, and they are connected together through a common emitter.
Darlington tubes and thyristors each have their own advantages and applicable scenarios, and they cannot be compared simply. Darlington is a high-amplification transistor that is often used in circuits that require large current drive, such as audio amplifiers, motor drives, etc. The thyristor is a silicon-controlled rectifier, mainly used for the control and regulation of alternating current, such as dimmers, power supplies, etc. Therefore, the choice of Darlington or thyristor should be decided based on actual needs and circuit requirements.
The essential difference between common-base and common-base is the frequency of the input signal. The input signal to a cascode circuit is at a lower frequency, while the input signal to a cascode-to-cascode circuit is at a higher frequency.
Metal oxide semiconductor field effect transistor is a field effect transistor that can be widely used in analog circuits and digital circuits, referred to as metal oxide half field effect transistor.
MOSFET is the abbreviation of MetalOxideSemiconductorFieldEffectTransistor, which is translated into Chinese as “metal oxide semiconductor field effect transistor”. It is a device made of three materials: metal, oxide (SiO2 or SiN) and semiconductor. The junction field effect transistor is a three-terminal active device with amplification function. It is the simplest type of unipolar field effect transistor. It can be divided into N channel or P channel.
