Switched-mode power supply (SMPS) transformers are a key component in switched-mode power supplies, used to convert electrical energy from one voltage level to another while maintaining high efficiency and compact size. These transformers are designed for high-frequency operation, typically in the range of tens to hundreds of kilohertz, allowing for smaller size and lighter weight compared to traditional power transformers. SMPS transformers are critical in electronic devices and systems, from consumer electronics like laptops and smartphones to industrial applications such as data centers and telecommunications equipment.

The high-frequency operation of SMPS transformers allows them to use smaller magnetic cores and fewer windings, leading to reduced size and weight. They also feature specialized designs to minimize energy loss through heat and reduce electromagnetic interference (EMI), ensuring efficient energy transfer and compliance with regulatory standards. These transformers can be custom-designed for specific applications, with a variety of core materials, shapes, and winding techniques available to optimize performance. SMPS transformers are central to creating energy-efficient and compact power supply units, which are increasingly in demand in modern electronics and industrial systems.