- 专利标题: Common mode (CM) electromagnetic interference (EMI) filters for reducing radiated EMI in power converters
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申请号: US17103062申请日: 2020-11-24
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公开(公告)号: US11356011B2公开(公告)日: 2022-06-07
- 发明人: Shuo Wang , Juntao Yao , Yiming Li
- 申请人: University of Florida Research Foundation, Incorporated
- 申请人地址: US FL Gainesville
- 专利权人: University of Florida Research Foundation, Incorporated
- 当前专利权人: University of Florida Research Foundation, Incorporated
- 当前专利权人地址: US FL Gainesville
- 代理机构: Alston & Bird LLP
- 主分类号: H02M1/12
- IPC分类号: H02M1/12 ; H02M7/217
摘要:
Provided are examples of electromagnetic interference (EMI) filters for reducing radiated EMI in power converters. An example EMI filter includes a common mode (CM) choke located on an input cable connected to a first side of a converter a first set of Y-capacitors located between a primary ground (PGND) node of the converter and a secondary ground (SGND) node of the converter, and a second set of Y-capacitors located between the first side of the converter and the SGND node. A first shielding may be connected to the SGND node. One or more additional shieldings may be inside the first shielding and connected to one of the PGND node or the SGND node. The converter may be one or more of an isolated converter, an LLC resonant power converter, a Flyback converter, a forward converter, or a push-pull power converter.
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