Core Insights - The switch power supply is a crucial component in power supply systems, widely used in various electronic devices, converting power voltage into stable voltage required by devices, with advantages such as miniaturization, lightweight, and high conversion efficiency [1][12] - The market for switch power supplies in China is projected to grow from 114.98 billion yuan in 2015 to 253.2 billion yuan by 2025, with a compound annual growth rate (CAGR) of 8.55% [1][14] - The demand for high-performance power supplies is driven by the construction of 5G networks, the proliferation of the Internet of Things (IoT), and the expansion of data centers, particularly in servers, edge devices, and smart terminals [1][13] Industry Overview - Switch power supplies, also known as switched-mode power supplies (SMPS), are high-frequency power conversion devices that convert voltage from AC or DC sources to the required DC voltage for devices [4][9] - The industry has a well-established supply chain, with upstream suppliers controlling the manufacturing technology of power supply IC chips, midstream manufacturers providing various power products, and downstream applications spanning multiple sectors including industrial automation, medical devices, and consumer electronics [11][12] Market Dynamics - The application of switch power supplies is concentrated in the industrial sector (53.94%) and consumer electronics (33.05%), indicating a high industry concentration [15] - The rapid development of new energy industries such as photovoltaics and wind power has significantly increased the demand for related power supply equipment [1][13] Competitive Landscape - The switch power supply industry in China features both international and domestic players, with global leaders like TDK-Lambda and Mean Well dominating the high-end market, while domestic companies like Oulutong and Maoshuo Power are rapidly emerging through technological innovation and cost advantages [16][17] Development Trends - The industry is expected to see advancements in high frequency, modularization, low noise, and enhanced stability, driven by new semiconductor materials and innovative circuit designs [18][19][20][21]