The Trend Toward Miniaturization of High-Frequency PFC Inductors Is Gaining Momentum, Bringing New Changes to Consumer Electronics and Industrial Power Supplies

The widespread adoption of miniaturized high-frequency PFC inductors is having a profound impact on multiple downstream markets. In the consumer electronics sector, the relentless pursuit of minimal PCB space in products such as PD chargers and TV power supplies makes the design flexibility afforded by halving the inductor’s volume particularly valuable. In the industrial and medical power supply sectors, smaller cores and PCB footprints directly reduce BOM costs while meeting high reliability requirements.

Of even greater strategic significance are the new energy vehicle and data center sectors. In on-board chargers (OBCs), the miniaturization of high-frequency PFC inductors directly determines the power density of the charging system and the space utilization of the entire vehicle. In the AI server and data center power supply sectors, as standards such as the Open Compute Project (OCP) continue to tighten requirements for power supply size and energy efficiency, GaN-based high-frequency PFC designs have achieved a power density of 120 W/in³ and an efficiency of over 99%, with miniaturized high-frequency inductors serving as the key enabling technology.

From fast charging in consumer electronics to industrial and medical power supplies, and from data center power distribution to OBCs for new energy vehicles, the trend toward miniaturizing high-frequency PFC inductors is reshaping the rules of the game in power supply design—smaller size, higher efficiency, and lower cost make it possible to “have your cake and eat it too,” while also providing a solid foundation for the next generation of high-performance, compact power supply products.