What is a switching power supply? Many people understand switching power supply as 'switch'

by:MOSO     2020-02-18
'Power supply'The word is a bit general. On a business trip to stay in the hotel, can not find the 220 v ac socket, you may say that this hotel does not provide'Power supply'. In this context,'Power supply' It refers to the 'can be used at the input of a power supply equipment'AC input power supply'. On a business trip, you find that your laptop is not with it. 'Power Adapter' , You will also get used to saying that you brought a computer, but you didn't bring it. 'Power supply'. If someone asks you what your career is, you say you do it. 'Power supply'Or answer to do'Switching Power Supply' Yes, the other party may suddenly think that your occupation is very general, not high-tech. But the power supply is high-tech in your heart, because what you are doing is a high-end power supply, and no one in China can make it, but the person who asks you, his mind'Power supply' It's just 220 v ac on the wall, or a switch on the wall. You two are not on the same channel. The power supply seems too common because it appears everywhere. In general terms, as long as the equipment and facilities that can provide electric energy are all power supplies. In a narrow sense, the power supply in the heart of the power supply is only a switching power supply. What I want to talk about is switching power supply. I did not search for the official definition of switching power supply. In my understanding, switching power supply is to realize the conversion of electric energy by turning on and off the switch tube. The conversion of electric energy includes: 1, AC/DC. Convert AC to DC, usually 220 V, two-phase alternating current or 380 V, three-phase alternating current from the power grid to direct current. The AC input of low-power AC/DC is 220 V, and the AC input of high-power is 380 V. According to different application industries and occasions, it is also called AC/DC converter, rectifier, primary power supply, communication power supply, power adapter, lighting power supply, etc. 2, DC/DC Converting DC to DC, such as converting high voltage and small current to low voltage and large current, may be called DC/DC converter, secondary power supply and module power supply according to different application industries and occasions, power supply on board, etc. 3, DC/AC Converting DC to AC may be called UPS, inverter, grid-connected inverter, motor controller, etc. according to different application industries and occasions. 4, AC/AC Convert AC into AC, and the usual product form is frequency converter, which is used for motor control. In the industry market corresponding to AC/DC and DC/DC, industry insiders call it'Switching Power Supply' , Specific industries have relatively high-end primary power supply ( Also called communication power supply, but the meaning of communication power supply seems to be wider) , Generally refers to the 48V power supply, secondary power supply, customer customized power supply, power supply, computer power supply, notebook computer and other electrical equipment power adapter, mobile phone charger power supply, charging pile power supply, vehicle charger ( OBC, on-board charger) , Vehicle-mounted DC/DC converter, lighting power supply ( Can be divided into LED power supply, electronic ballast, HID power supply), Etc. However, in the industry market corresponding to DC/AC and AC/AC, people generally say that they do UPS and photovoltaic (According to the photovoltaic panel, direct current is converted into alternating current) , Do energy storage, do inverter, do motor controller. Data collation comes from the network!
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