Improving power conversion efficiency is crucial for reducing energy consumption and device heat generation. The company’s R&D team will adopt advanced power supply topologies and high-efficiency power devices, such as synchronous rectification technology and gallium nitride (GaN) devices, to enhance the power supply’s conversion efficiency. The goal is to increase the efficiency of the new LED display switching power supply to over 95%, significantly reducing energy loss compared with traditional power supplies and achieving green energy conservation. For example, by using synchronous rectification technology—where power MOSFETs are reverse-connected to serve as rectifier switching diodes instead of Schottky barrier diodes (SBDs)—the voltage drop across the diodes can be effectively reduced, thereby improving circuit efficiency. Meanwhile, the R&D team will conduct in-depth research on the application of GaN devices in power supplies. Leveraging GaN’s characteristics such as high electron mobility and low on-resistance, the team will further enhance the power density and conversion efficiency of the power supply.

Stability and reliability are core performance indicators of LED display switching power supplies. To ensure the new power supply operates stably in various complex environments, the R&D team will optimize the design from multiple aspects. In terms of circuit design, multiple protection circuits will be adopted, including over-voltage protection (OVP), over-current protection (OCP), short-circuit protection (SCP), and over-temperature protection. These measures effectively prevent power supply damage and display malfunctions caused by abnormal conditions. For instance, MOV (lightning protection) and NTC (surge suppression) components will be added to the input stage, while precise OVP, OCP, and SCP circuits will be installed at the output stage. At the same time, thermistors will be used for real-time temperature monitoring of the power supply. When the temperature exceeds a safe threshold, the power supply will automatically reduce power or shut down, ensuring safe and stable operation.

In addition, the R&D team will focus on the electromagnetic compatibility (EMC) design of the power supply. Measures such as using a two-stage π-type filter to suppress interference in the 100kHz–1GHz range, optimizing grounding design (with multi-point grounding for the power supply housing, separation of signal ground and power ground), adopting a metal housing for the power supply to shield radiation, and adding magnetic rings to output wires to suppress common-mode noise will be implemented. These efforts reduce the power supply’s interference with surrounding electronic devices and enhance its own anti-interference capability, ensuring stable operation even in complex electromagnetic environments.

As LED displays develop toward thinner and lighter forms, higher requirements are placed on the size and weight of switching power supplies. The R&D team at Beidouxing Electronic Technology will achieve miniaturization and lightweight design of the power supply by using new magnetic materials and capacitors, as well as optimizing circuit layout. In terms of magnetic materials, materials with low loss, good heat dissipation, and excellent magnetic properties—such as nanocrystalline soft magnetic materials—will be selected to reduce the volume and weight of high-frequency magnetic components. Meanwhile, the team will research and develop new capacitors suitable for power supply systems, which require large capacitance, low equivalent series resistance (ESR), and small size. In circuit layout, advanced integration technology will be used to integrate multiple functional modules into a single chip or circuit board, reducing the number of components and wiring space, thereby achieving miniaturization and lightweight of the power supply. The goal is to reduce the volume of the new LED display switching power supply by more than 30% and its weight by more than 20%, providing strong support for the thin and lightweight design of LED displays.

Intelligence is a key trend in the development of electronic technology products, and new LED display switching power supplies are no exception. Beidouxing Electronic Technology will incorporate intelligent control technology into the power supply to enable real-time monitoring and remote control of its operating status. Equipped with a built-in intelligent chip, the power supply can collect real-time parameters such as its own voltage, current, and temperature, and transmit this data to a monitoring center via a wireless network. Users can check the power supply’s operating status anytime and anywhere through a mobile APP or computer client. When an abnormality occurs in the power supply, the system can issue an alarm in a timely manner and perform automatic adjustments or remote control according to preset strategies, realizing intelligent management of the power supply. For example, in large outdoor LED display projects, maintenance personnel can remotely monitor and manage power supplies distributed in different locations through the intelligent control system, promptly identifying and resolving potential issues, which greatly improves maintenance efficiency and reduces maintenance costs.

To ensure the smooth progress of the new LED display switching power supply R&D project, Beidouxing Electronic Technology has formulated a detailed R&D plan. In the first half of 2025, the R&D team will focus on technical research and program design: conducting in-depth research on the latest industry technology trends, combining market demands with the company’s own technical advantages to determine the optimal R&D program, and advancing key technology breakthroughs (such as high power conversion efficiency technology and high-stability protection circuit design).

In the second half of 2025, the project will enter the prototype development phase. Based on the previously determined program, the R&D team will carry out circuit design, PCB manufacturing, component selection, and soldering assembly to produce the first batch of product prototypes. Subsequently, comprehensive performance testing and optimization of the prototypes will be conducted, including load testing, high-temperature aging testing, EMC testing, and cyclic power-on/off testing, to ensure the prototypes meet the design requirements. It is expected that by the end of 2025, the development of prototypes for the new LED display switching power supply will be completed, and small-batch trial production will be launched.

Through the R&D efforts in 2025, Beidouxing Electronic Technology is expected to achieve the following outcomes: