Power adapter technology is widely used

　　Power adapters represent the development direction of stabilized power supplies due to their high efficiency, low power consumption, small size and light weight. They have become the mainstream products of modern stabilized power supplies. They are used in energy, electric power, industrial control, transportation, water conservancy and other industries. Widely used, it is also an important development direction of the energy and power industry.

　　With the rapid development of modern science and technology, power adapters, as a new type of regulated power supply, are used more and more widely, including not only power supply for meters, measurement systems and computer systems, but also widely used in various consumer electronic products, power adapters It has outstanding characteristics such as high efficiency, low power consumption, small size and light weight.

　　The design of notebook power supplies involves analog electronic technology, digital electronic technology, power electronic technology, automatic control principles and other disciplines. For beginners and R&D engineers with many years of development experience, it is difficult to design high efficiency, low power consumption, and dynamic performance. Excellent power supply with low ripple. The power adapter is essential for the stable operation of electrical equipment. It is no exaggeration to say that the power adapter is the "anchor" for the stable operation of electrical equipment. Once the power adapter is abnormal, it will cause the MCU to work chaotically, the industrial communication will be interrupted abnormally, and the equipment fire will cause serious personal injury! Therefore, the design of the power adapter is very important, and it is of inestimable significance to our production and life! It is even more difficult to simulate a power adapter. The current mainstream power adapter simulation software on the market includes MATLABSimulink, Saber, CadencePSpice, etc., each of which has its own strengths. Saber is a recognized simulation software in the power field. The Saber simulation software of Synopsys of the United States is a kind of EDA software, known as the most advanced system simulation software in the world. It can perform different types of systems such as electronics, power electronics, mechatronics, machinery, optoelectronics, optics, and control. Hybrid simulation solves a series of problems from system development to detailed design verification.

　　Electricity is an indispensable energy source in today's society. Electricity is indispensable in industrial control, rail transit, energy power, new energy vehicles, construction machinery, military communications and other fields. Since the British physicist Faraday discovered electromagnetic induction in 1831, the development or activity of electric energy has been closely related to human beings. Modern society is not only satisfied with electricity, but modern science and technology have increasingly higher requirements for power quality. Different equipment and equipment require different power sources, and need to transform and control electrical energy, such as AC and DC, control voltage, current, and AC frequency. , In order to improve the quality and efficiency of electric energy, and put forward higher requirements for energy saving and environmental protection.bag in box custom

　　Power adapter technology is widely used. In just a few decades, it has been widely used in various industries in human society, and has played a positive role in promoting scientific and technological progress and productivity development in human society. The following are some common applications. Independent photovoltaic power generation, also known as off-grid photovoltaic power generation, is mainly composed of solar cell components, controllers and batteries, as shown in Figure 1-1. In order to supply power to the AC load, an AC inverter must also be configured. Independent photovoltaic power plants include village power supply systems in remote areas, solar home power supply systems, communication signal power supplies, cathodic protection, solar street lights and other battery-operable photovoltaic power generation systems.

　　In traditional industries such as banking, electric power, and chemical industries, uninterruptible power supplies (UPS) are mainly used to prevent data loss during sudden power outages and maintain stable operation of equipment.

　　The computer power supply is a device that converts 220V alternating current into direct current and supplies power to computer accessories (such as motherboards, drivers, graphics cards, etc.). ) It is the hub of power supply for computer components and an important part of the computer.

　　An electric vehicle (BEV) is a vehicle powered by an on-board power supply and driven by an electric motor, which meets the requirements of road traffic and safety regulations. Compared with traditional cars, it has a smaller impact on the environment, so its prospects are widely optimistic, but the current technology is not yet mature. Working principle: battery-current-power regulator-motor-power transmission system-drive the car on the road. Compared with fuel vehicles, pure electric vehicles are mainly different from four major components: drive motor, speed controller, power battery and vehicle charger. Compared with gas stations, it has a public super fast charging station. The quality difference of pure electric vehicles depends on these four components, and its value also depends on the quality of these four components. The use of pure electric vehicles is also directly related to the selection and configuration of the four major components.

　　A new type of car refers to a car that uses unconventional car fuel as a power source (or uses traditional car fuel and new on-board power devices), and combines advanced technology with the power control and drive of the car. The technical principle is advanced, the technology is novel, and the car is novel in structure. Figure 1-5 shows the power supply system of a new energy vehicle.

　　Use the charger to charge the mobile phone to ensure the normal use of the mobile phone. It is mainly composed of self-excited vibration circuit, voltage regulation protection circuit, charging output circuit and so on. Its input voltage is AC220V, 50/60 Hz, 40 mA, and its output voltage is DC5V, 150~180 mA.

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