source:Industry News Popular:adapter release time:2020-12-16 18:17:45 Article author:sznbone
Electric energy is inseparable from the production and life of our human beings today. Because of this, people have been trying to find stable and efficient power generation methods, methods and equipment, and carefully study the reasonable architecture and transmission and distribution modes of regional power supply networks. Analyze the quality requirements of electrical equipment for power supply, explore new theories and new technologies for the scientific and rational use of electrical energy, and constantly improve theories and regulations on the development, operation, operation, maintenance and management of the electrical energy supply system and its equipment, with a view to more Scientifically, reasonably, safely and efficiently develop and utilize electric energy.
What we call "electricity" is actually a form of energy, and the energy from another form is converted to power provided by the public grid. Almost all the electrical energy used by enterprises, institutions and households is directly or indirectly provided by the power grid. The power source of the power grid comes from power plants. At present, the power generation methods of power plants mainly include thermal power, hydropower and nuclear power. Thermal power is the conversion of thermal energy into electrical energy, while hydropower is the conversion of mechanical energy c water potential energy, and the conversion of electrical energy into electrical power generation converts nuclear energy into electrical energy. In addition to the three main power generation methods described above, there are also renewable energy power generation methods such as wind power, solar power, hydrogen (fuel cell) power generation, and emergency power generation such as diesel and gasoline generator sets. The power adapters provided to ordinary users by the public power grid are all industrial frequency AC power adapters. Another power adapter that can provide electrical energy is a chemical power adapter. Storage batteries, dry batteries, strontium ion batteries, etc. are typical representatives. Although the electric energy provided by this kind of power adapter occupies a small proportion, it is more and more closely related to people's daily life. Although the chemical energy stored in the chemical power adapter is obtained by the charging power adapter, the chemical power adapter is still a power adapter that provides electrical energy because the electrical energy during use (discharge) is directly converted from chemical energy.
Of course, the above method of classifying power conversion power supplies is not unique, that is to say, there are other classification methods for power conversion power supplies, such as AC power and AC power according to whether the output is DC or AC. The specific technologies used are different, and can be divided into linear power supplies, phase-controlled power supplies, and switching power supplies.
The power adapter is a DC stable power supply controlled by a switch. Because of its small size, light weight and high efficiency, it is widely used in almost all electronic equipment such as various terminal equipment and communication equipment led by electronic computers. It is an indispensable power source for the rapid development of today's electronic information industry. On the other hand, this kind of power adapter still has a big technical problem to be solved. It is a major subject in electronic engineering that needs to be overcome, and it is deeply concerned by the majority of engineering and technical personnel.
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