Protocol introduction
Driven by the use of smartphones and video content, the volume of mobile data traffic is growing exponentially, so radio broadcast network service providers need to provide higher bandwidth to support it. The general trend is to reduce the amount of base station cell and better distribution of traffic. The increase in the number of sites required means that those previously thought are not very ideal will be reused. Difficult to access sites or sites located at sites prone to lightning and other transient surges can bring some harsh environmental conditions and various design challenges. Not only to reduce the size of power, but also to improve efficiency to simplify thermal management. In addition, you need to work under fault conditions and meet strict EMI standards.
Scheme situation and advantages
In case the strict selection team uses PFM, isolated AC-DC converter and ZVS regulator to provide 24V and 5V low voltage, and the PRM regulator and VTM current multiplier for higher voltage of 48V voltage, the customer reduced the system size by integrating the power supply into the system circuit board. The solution saves more than 60% of the space compared to the previously designed power supply, and makes the use of the system's conduction and heat dissipation to further improve the reliability of the system. Strict application engineers provide support to meet global standards and quickly prototype the solution using the standard evaluation board.