Switching Power Supply uses modern power electronics technology
With the high-speed prospect of power electronics technology, the relationship between power electronics equipment and people's work and life is increasingly close, and electronic equipment cannot be separated from reliable power supply, in 1980s, the computer power supply * * realized the switching power supply, took the lead in completing the upgrading of computer power supply, and in 1990s, the switching power supply successively entered various fields of electronic and electrical equipment, program-controlled exchange, communication, electronic testing equipment power supply, control equipment power supply and so on have been widely used in switching power supply, which has promoted the rapid prospect of switching power supply technology.
Switching Power Supply is a kind of power supply that uses modern power electronics technology to control the time ratio of switching transistor on and off to maintain stable output voltage. Switching power supply is generally modulated by pulse width (PWM)Control IC and switching device composition.
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 prospect 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 prospect space for switching power supply.
High frequency of switching power supply is the direction of its prospect. High frequency makes switching power supply miniaturized and makes switching power supply enter a wider application field, especially in high-tech fields, it has promoted the miniaturization and portability of high-tech products.
In addition, the prospect and application of switching power supply are of great significance in saving energy, resources and environment. Dear Customer: Hello!
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