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HOME >> What is the difference between switching power supply and normal power supply?
What is the difference between switching power supply and normal power supply?
Source: | Author:pmo89cafb | Published time: 2020-11-02 | 4164 Views | Share:
direct current is output.
Because the size of the magnetic core of the transformer is inversely proportional to the square of the working frequency of the switching power supply, the higher the frequency, the smaller the core. In this way, the transformer can be greatly reduced and the weight and volume of the power supply can be reduced. Moreover, the efficiency of this power supply is much higher than that of linear power supply because it directly controls DC. This saves energy, so it is favored by people. But it also has its disadvantages, that is, the circuit is complex, difficult to maintain, and seriously pollutes the circuit. The power supply is noisy, so it is not suitable for some low noise circuits.


Characteristics of switching power supply
Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET. With the development and innovation of power electronic technology, switching power supply is widely used in almost all electronic equipment with the characteristics of small size, light weight and high efficiency.