Switching power adapter products are closely related to life. Many electronic devices need to be applied. It is one of the indispensable accessories of electronic products. It has stable performance, low heat generation, small size and easy heat dissipation, and high efficiency. At the same time, switching power adapter products are also common things in life, such as: notebook computers, tablets, game consoles, Walkmans, etc. are all applied, it is a small portable power conversion device, its appearance is small, easy to carry, high performance Stable and widely used.

Let's talk about the advantages of switching power adapter products extensively. I hope you will get closer to your knowledge of switching power adapter:
1. Small size and light weight.​​
The switching power adapter does not use a bulky power frequency transformer. Since the dissipated power on the switch MOS tube is greatly reduced, a larger heat sink is omitted.
2. Wide range of voltage regulation.
The output voltage of the switching power adapter is adjusted by the duty cycle of the excitation signal, and the change of the input signal voltage can be compensated by frequency modulation or width modulation. In this way, when the power frequency grid voltage changes greatly, it can still ensure a relatively stable output voltage. Therefore, the voltage regulation range of the switching power adapter is very wide, and the voltage regulation effect is very good. In addition, there are two methods of changing the duty ratio: a pulse width modulation type and a frequency modulation type.
3. Low power consumption and high efficiency.
In the switching power adapter circuit, under the excitation of the excitation signal, the switching MOS tube works alternately in the on-off and off-on switching states, the switching speed is very fast, and the frequency is generally above 50kHz. In some advanced switches In the power supply line, several hundred or nearly megahertz can be achieved. This makes the power consumption of the switch MOS tube very small, and the efficiency of the power supply can be greatly improved, and its efficiency can reach 90%.
4. The filtering efficiency is greatly improved, which greatly reduces the capacity and volume of the filtering capacitor.
The operating frequency of the switching power adapter is basically above 50kHz, which is more than 1000 times that of the linear regulated power adapter, which increases the filtering efficiency after rectification by almost 1000 times. Under the same ripple output voltage, when the switching power supply is used, the capacity of the filter capacitor is only 1/500 ~ 1/1000 of the filter capacitor in the linear regulated power supply.
The advantages of switching power adapter products are described above, which are very helpful for many newbies who have just come into contact with switching power adapters!