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The main functions and uses of switching power supplies

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.04.15
A switching power supply is a power supply device used to convert alternating current into stable direct current. It receives power from the power grid through an AC input port and processes voltage and current through internal circuit components such as transformers, rectifiers, filters, and regulators, outputting stable DC power for load use.



Switching power supplies have the characteristics of high efficiency, stability, and reliability, and have been widely used in modern electronic equipment, communication equipment, industrial automation, and other fields.

The main functions of a switching power supply include:

1. Stable voltage output: Switching power supplies can output stable DC power, effectively avoiding damage to electronic devices caused by instantaneous voltage fluctuations.

2. Increase circuit efficiency: The switching power supply adopts high-frequency switching technology, which improves its conversion efficiency, stability, and reliability, thereby improving the efficiency and quality of the entire circuit.

3. Reduce heat loss: Compared with traditional linear power supplies, switch mode power supplies have lower heat loss, which can not only reduce the power consumption of equipment, but also prolong the lifespan of the power supply.

4. Support for a wide range of input voltage: Switching power supplies have a wide input range, usually supporting AC 90-240V voltage input, making electronic devices more adaptable.

5. Smaller size: Due to the use of high-frequency switching technology, the overall volume of the switching power supply is smaller, making it more flexible to use in design and saving space.

Switching power supplies are widely used in fields such as industrial automation, communication, medical equipment, computers, and their peripherals. In industrial applications, switching power supplies are used in DC motors, servo motors, frequency converters, inductive heating devices, and other applications. In the field of communication, switching power supplies are used for AC/DC conversion, battery pack backup, network routers, switches, transmission equipment, and other places. In medical equipment, switch mode power supplies are widely used in electronic medical devices such as medical monitors, medical light sources, electronic blood pressure monitors, and ultrasound diagnostic devices. In addition, switch mode power supplies are also widely used in various types of computers and their peripheral devices, such as laptops, monitors, printers, scanners, and other devices.
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