Why does the communication base station use -48V power supply?
Communication base station power supply in the tower room power supply system is an essential and important part of the mobile communication network. The current communication power
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Feb 10, 2022 · Communication base stations use -48V power supply for most historical reasons. Historically, the communications industry equipment has
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4 Frequently Asked Questions about “How many power supplies does the communication base station have ”
What are the components of base station?
A base station in digital communication consists of two main components: the transceiver and the controller. The transceiver manages the radio-link protocols, while the controller serves as the connection between the station and the switching centre.
How much power does a base station need?
There is no general maximum output power requirement for base stations. As mentioned in the discussion of base-station classes above, there is, however, a maximum power limit of 24 dBm output power for Local Area base stations and of 20 dBm for Home base stations, counting the power over all antennas.
How much power does a PSU need?
This is when the PSU is no longer powering the PA, which is the main power draw, but still needs to power other electronics. The current target for low-load efficiency is about 30 W. Some OEMs would like to see that drop to nearly 10 W.
How will mmWave based 5G affect PA & PSU designs?
Site-selection considerations also are driving changes to the PA and PSU designs. The higher the frequency, the shorter the signals travel, which means mmWave-based 5G will require a much higher density of small cells compared to 4G. Many 5G sites will also need to be close to street level, where people are.