| ZHE JIANG UNIVERSITY Patent applications |
| Patent application number | Title | Published |
|---|
| 20100245008 | ENTIRELY INTEGRATED EMI FILTER BASED ON A FLEXIBLE MULTI-LAYER STRIP MATERIAL - An entirely integrated EMI filter is based on a flexible multi-layer strip material. An EE or EI core comprises two side pillars and one middle pillar and forms a closed magnetic circuit. The middle pillar has an air gap. A first winding and a second winding respectively are wound around the two side pillars in a same winding direction. The middle pillar is wound with a third winding and a fourth winding, or with only a fifth winding. Passive components (e.g., all passive components) of the EMI filter are integrated into one core so that in its differential mode, insertion loss is significantly reduced, the size and volume are reduced, and the distribution constant of the EMI filter has less impact on the filter's performance. | 09-30-2010 |
| 20090270244 | Low-Loss Microwave Dielectric Ceramic - There is provided a low-loss microwave dielectric ceramic having a composition represented by xCaO.yLn | 10-29-2009 |
| 20090128258 | EMI filter with an integrated structure of common-mode inductors and differential-mode capacitors realized by flexible printed circuit board - An integrated structure of common-mode inductors and differential-mode capacitors in an EMI filter realized using a flexible circuit board, including: a closed magnetic circuit formed by a first magnetic core and a second magnetic core, optionally including an air gap formed in a middle pillar of the magnetic cores, and with a flexible printed circuit board (FPC) wound on at least one pillar, the FPC formed by laminating alternating insulating and copper foil layers. The integrated structure of inductors and capacitors is advantageous in reducing the volume of the EMI filter and improving the power density of an electronic power transformer. | 05-21-2009 |
| 20080224809 | MAGNETIC INTEGRATION STRUCTURE - A magnetic part having a first iron core wound with a winding constituting a transformer and an inductance component of a parallel coil and a second iron core wound with an inductance component of a series coil, in which a ratio of the dimensions of the first iron core and the second iron core are in accordance with their respective winding densities. | 09-18-2008 |
