Why the use of high-frequency switching power supply
High frequency, can increase the power density, the smaller the size of the machine, the cost is reduced
Improve the switching frequency can improve efficiency, thereby reducing the size of the transformer, and then the entire power supply volume will come down
There is, switch state, oscillation, then the frequency of <20KHZ ears can hear the noise, so from this point of view can not be less than 20K
Because the high-frequency operation of the state, the transformer electromagnetic conversion speed, so the same energy conversion, the unit time within the transformer stored in the energy can be greatly reduced, thereby greatly reducing the size of the transformer and the loss in the transformer, thus Play to reduce weight, improve efficiency.
