High-Performance High-Power Inductor Design for High-Frequency Applications
The performance and size of power electronic circuits are greatly impacted by magnetic components. This is especially true at Radio Frequencies (RF) of many MHz and above. In the High Frequency (HF, 3-30 MHz) range, coreless (or "air-core") inductors with a typical quality factor (Q) of 20...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2024
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| Online Access: | https://hdl.handle.net/1721.1/154375 |
| _version_ | 1826197412320903168 |
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| author | Joisher, Mansi Vipul |
| author2 | Perreault, David J. |
| author_facet | Perreault, David J. Joisher, Mansi Vipul |
| author_sort | Joisher, Mansi Vipul |
| collection | MIT |
| description | The performance and size of power electronic circuits are greatly impacted by magnetic components. This is especially true at Radio Frequencies (RF) of many MHz and above. In the High Frequency (HF, 3-30 MHz) range, coreless (or "air-core") inductors with a typical quality factor (Q) of 200-300 are conventionally used and are often the major contributor to the overall system’s loss and size. Even when they can achieve high Q, air-core inductors can induce electromagnetic interference (EMI) and eddy current loss in surrounding components, thus limiting system miniaturization. With the recent advancements in high-performance, high-frequency magnetic materials, there is interest in leveraging these magnetic materials at RF and replacing lossy air-core inductors with cored inductors to achieve an improved combination of size and loss. This thesis investigates high-power, high-frequency, high-Q cored inductors. This approach leverages high-frequency high-performance magnetic materials, core geometry, and quasi-distributed gaps to achieve a self-shielded inductor that emits less flux outside its physical volume and can be placed close to other circuit components without inducing EMI or eddy current loss. The performance and self-shielding characteristics of the proposed design procedure are experimentally verified for a 500 nH inductor (Q = 1150) designed to operate at 13.56MHz with a peak ac current of up to 80 Amps. |
| first_indexed | 2024-09-23T10:47:36Z |
| format | Thesis |
| id | mit-1721.1/154375 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:47:36Z |
| publishDate | 2024 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1543752024-05-02T03:45:26Z High-Performance High-Power Inductor Design for High-Frequency Applications Joisher, Mansi Vipul Perreault, David J. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science The performance and size of power electronic circuits are greatly impacted by magnetic components. This is especially true at Radio Frequencies (RF) of many MHz and above. In the High Frequency (HF, 3-30 MHz) range, coreless (or "air-core") inductors with a typical quality factor (Q) of 200-300 are conventionally used and are often the major contributor to the overall system’s loss and size. Even when they can achieve high Q, air-core inductors can induce electromagnetic interference (EMI) and eddy current loss in surrounding components, thus limiting system miniaturization. With the recent advancements in high-performance, high-frequency magnetic materials, there is interest in leveraging these magnetic materials at RF and replacing lossy air-core inductors with cored inductors to achieve an improved combination of size and loss. This thesis investigates high-power, high-frequency, high-Q cored inductors. This approach leverages high-frequency high-performance magnetic materials, core geometry, and quasi-distributed gaps to achieve a self-shielded inductor that emits less flux outside its physical volume and can be placed close to other circuit components without inducing EMI or eddy current loss. The performance and self-shielding characteristics of the proposed design procedure are experimentally verified for a 500 nH inductor (Q = 1150) designed to operate at 13.56MHz with a peak ac current of up to 80 Amps. S.M. 2024-05-01T14:31:52Z 2024-05-01T14:31:52Z 2023-06 2023-07-13T14:21:39.110Z Thesis https://hdl.handle.net/1721.1/154375 In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Joisher, Mansi Vipul High-Performance High-Power Inductor Design for High-Frequency Applications |
| title | High-Performance High-Power Inductor Design for High-Frequency Applications |
| title_full | High-Performance High-Power Inductor Design for High-Frequency Applications |
| title_fullStr | High-Performance High-Power Inductor Design for High-Frequency Applications |
| title_full_unstemmed | High-Performance High-Power Inductor Design for High-Frequency Applications |
| title_short | High-Performance High-Power Inductor Design for High-Frequency Applications |
| title_sort | high performance high power inductor design for high frequency applications |
| url | https://hdl.handle.net/1721.1/154375 |
| work_keys_str_mv | AT joishermansivipul highperformancehighpowerinductordesignforhighfrequencyapplications |