Comparison between switching power supply and linear power supply
Switching Power Supply is a kind of power supply that uses modern power electronics technology to control the time ratio of switching tube on and off to maintain stable output voltage. Switching power supply is generally modulated by pulse width (PWM)Control IC and MOSFET composition.
With the development of power electronics technology and * *, switching power supply technology is also constantly **.
At present, switching power supply is widely used in almost all electronic equipment with the characteristics of small size, light weight and high efficiency. It is an indispensable power supply mode for the rapid development of electronic information industry.
Compared with linear power supply, the cost of switching power supply increases with the increase of output power, but the growth rates of the two are different.
The cost of linear power supply is higher than that of switching power supply at a certain output power point.
With the development of power electronics technology and **, the switching power supply technology is constantly **, and this cost reversal point is increasingly moving to the low output power end, this provides a wide development space for switching power supply.
High-frequency switching power supply is its development direction. High-frequency switching power supply is miniaturized and has entered a wider range of applications, especially in high-tech fields, it has promoted the miniaturization and portability of high-tech products.
In addition, the development and application of switching power supply are of great significance in security monitoring, energy conservation, resources conservation and environmental protection.
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