Can the power supply of the mobile phone signal shielding system be changed from AC to DC?

In the process of building a mobile phone signal shielding system, the power supply to each mobile phone signal jammer device in the system is an essential construction link. As the construction unit of the project contractor, the power supply for the entire mobile phone signal shielding system is AC or It is DC that there are doubts and disagreements, and here we provide explanations and explanations on this issue.

First of all, let's talk about the difference and advantages and disadvantages of AC power supply and DC power supply:

The AC power supply uses ordinary commercial power to provide power supply to the equipment in the mobile phone signal shielding system. .

DC power supply is to first supply power to each signal shielding device in the mobile phone signal shielding system through an AC to DC power conversion device in the form of DC power. The biggest advantage of this method is that it can facilitate the unification of the devices in the system. The power supply management is equivalent to the realization of a unified power-on and power-off function.

However, with the iterative upgrade of the mobile phone signal shielding system, in today's 5G era, the power consumption of each individual mobile phone signal shielding device in the system is at least 100W or more. The current that needs to be carried is less than 1A. However, if it is replaced with DC power supply, the DC voltage for each shielding terminal in the mobile phone signal shielding system is generally 5V or 12V. After calculation, it can be known that the carrying current required by each shielding terminal will be about 15A-30A. It is not difficult to see that this current value is already very large. If multiple mobile phone signal shielding devices are connected in parallel on a DC power supply line at the same time, the current carried by this DC power supply line will exceed 100A, which is very harmful to the power line. Wire diameter and transmission safety bring more stringent requirements. It will also bring about a substantial increase in material costs.

Through the above analysis, it is easy to draw a conclusion that the current power supply mode of the mobile phone signal shielding system is definitely AC power supply.