I. Introduction
5G base station is the core equipment of 5G network, which realizes wireless signal transmission between wired communication network and wireless terminals, and 5G base station is mainly divided into macro base station and small base station. Due to the high power consumption of communication equipment, 5G base stations use electrical cabinets composed of power sockets, AC and DC power distribution, lightning protectors, rectifier modules and monitoring modules. Therefore, as the name suggests, 5G power supply refers to the special power supply for 5G communication equipment.
5G base station power supply, divided into two mainstreams: At present, there are two mainstreams of 5G base station power supply system, one is UPS power supply system, and the other is HVDC power supply system. The development trend of 5G base station power supply is mainly towards the goal of solution miniaturization, high frequency, high reliability and efficiency improvement.
2. Typical application topology
For the application of MOS transistors in 5G power supply, two product series of Ruisen Semiconductor are recommended
In the PFC line and FlyBac** road, we recommend the Risen Semiconductor superjunction MOSFET series:
It is transformed from the original deep trench process to a multi-layer epitaxial process, which has the characteristics of low on-resistance, excellent EMI characteristics, low loss, high efficiency, and low temperature rise. The on-resistance per unit area at high voltages can be significantly reduced, which in turn reduces the conduction loss. At the same time, superjunction MOSFETs have very low FOM values, resulting in very low switching and driving energy losses.
In order to meet the needs of high-efficiency miniaturization of power supply systems, the synchronous rectification circuit diagram recommends the use of Risen Semiconductor's low-voltage SGT MOS series
The design and process manufacturing technology of SGT trench shield screen have the advantages of higher process stability and reliability, faster switching speed, smaller gate charge and higher application efficiency.
3. Recommended product selection
For the PFC line and FlyBAC ** road of the 5G circuit diagram, we recommend the Superjunction MOSFET series of Risen Semiconductor.
In order to meet the needs of high-efficiency miniaturization of power supply systems, the synchronous rectification line recommends the low-voltage SGT MOS series of Ruisen Semiconductor.