What kind of 48V input power supply will be higher(3)

The core problem of the LED advertising screen power supply is the IC, which is like the brain of the LED advertising screen power supply. The quality of the IC can directly affect the various working parameters of the LED advertising screen power supply.

Three: Transformer components

Determine power, temperature and transformer. The transformer is responsible for the AC-DC LED advertising screen power supply, and the energy overload will saturate.

reasonable core structure and compact structure.
At the same time, in order to reduce the size of the module switching power supply, the switching frequency of the module switching power supply should be increased as much as possible. If it is to be increased to about 500kHz or higher, the loss of the ordinary magnetic core material is very large, and the magnetic core is easily overheated and magnetically saturated, and even It cannot work normally, so the high-frequency magnetic core material with excellent magnetic properties must be selected in the module switching power supply.

48V input LED advertising screen power supplyFour: Electrolytic and ceramic capacitors

Electrolytic capacitors, aluminum electrolytic capacitors and monolithic gallbladders, which use sulfuric acid to make the insulating medium, large capacity can carry out smaller volumes for the above, and are marked with a + sign, some are marked with a mark, generally do low cross-linking and side-by-side Circuit filter with larger loss meson, integral aluminum electrolytic capacitor, due to the shortcomings of using special materials, the electrolytic performance is better than ordinary, the preferred frequency, but can not do too much capacity, it can be used to accurately circuits, such as oscillators, or timing circuits.