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  Leveraging Common-Mode Choke Leakage for Better EMI Filtering In an ideal inductance model, magnetic flux is fully confined within the core. However, real-world inductors rarely achieve perfect coupling. Incomplete winding or loose coil structures allow part of the magnetic flux to escape, forming leakage inductance. Common-mode inductors inherently exhibit this effect due to the spacing between their two windings. The resulting leakage flux generates differential-mode inductance, giving common-mode chokes a natural ability to suppress differential-mode noise. This characteristic is widely applied in EMI filter design. In many conventional filters, only a common-mode inductor is used, with its leakage inductance serving as the differential-mode suppression element. In more demanding applications, designers may deliberately increase leakage inductance to strengthen differential-mode attenuation and achieve improved EMI filtering results.

  Researchers Develop Novel Manufacturing Process for High-Performance Vertical Toroidal Inductors A research team at the Tokyo Institute of Technology has unveiled a groundbreaking manufacturing process for **high-performance vertical toroidal inductors. Using advanced 3D printing techniques, the team has achieved unprecedented precision in creating intricate inductor structures.   Traditional manufacturing methods for toroidal inductors often face challenges in achieving consistent quality and scalability. However, this new process utilizes a combination of additive manufacturing and laser sintering to produce inductors with superior electrical performance and thermal stability.   Professor Hiroshi Tanaka, lead researcher on the project, explained, "Our method allows us to create vertical toroidal inductors with complex geometries that were previously impossible to achieve. This opens up new possibilities for high-frequency applications, such as 5G communicat...