The high frequency transformer is the most important part of the switching power supply. The switching power supply generally uses a half-bridge power conversion circuit. When working, two switching transistors are turned on in turn to generate a 100kHz high-frequency pulse wave, and then the high-frequency transformer is used to step down and output low-voltage alternating current.

In the evolving landscape of electrical engineering, where waveforms are increasingly complex, the limitations of traditional measurement methods become starkly apparent. Oswell's Rogowski coils transcend these limitations by offering a blend of linearity, dynamic range, frequency response, and safety that is perfectly suited for the modern grid. They are not merely an alternative to traditional CTs; they are an enabling technology for accurate measurement in the age of power electronics and distributed generation, providing the clarity needed to optimize, protect, and innovate within increasingly sophisticated electrical ecosystems.

The strategic selection of high-permeability ferrite cores represents a critical engineering decision that directly impacts transformer efficiency, size, and reliability in high-frequency applications. Oswell's systematic approach to core material optimization, combined with advanced manufacturing techniques, demonstrates that 20% loss reduction at 100kHz is achievable through careful balance of material properties and design parameters. As power electronics continue to evolve toward higher frequencies and greater power densities, these core selection strategies will remain essential for developing next-generation energy-efficient systems.