| Presentation | 1997/11/7 Operation Characteristics of Micro DC-DC Converter using a Layered Inductor with High Resistive Fe(Co-Fe)-Hf-O Thin Films. Sumihito Morita, Yoshito Sasaki, Takashi Hatanai, Akihiro Makino, Toshiro Sato, Kiyohito Yamasawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes the charactaristics of layered inductor made of nanocrystalline Fe(Co-Fe)-Hf-O thin films with high resistive and the operation characteristics of the micro DC-DC converter using the layered inductor. Fe(Co-Fe)-HF-O thin films have low loss characteristics at high frequency up to 100 MHz owing to their high electrical resistivity. As a result, the layered inductor utilizinig a Co_<44>Fe_<19>Hf_<15>O_<22> thin film exhibits Q value of 12.3 at 5MHz. The output power from 0.19W to 0.42W and the efficiency of 81% were obtained for the micro DC-DC converter operated at 5MHz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | high resistivity / layered inductor / DC-DC converter / high frequency |
| Paper # | EE97-51 |
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| Conference Information | |
| Committee | EE |
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| Conference Date | 1997/11/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Energy Engineering in Electronics and Communications (EE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Operation Characteristics of Micro DC-DC Converter using a Layered Inductor with High Resistive Fe(Co-Fe)-Hf-O Thin Films. |
| Sub Title (in English) | |
| Keyword(1) | high resistivity |
| Keyword(2) | layered inductor |
| Keyword(3) | DC-DC converter |
| Keyword(4) | high frequency |
| 1st Author's Name | Sumihito Morita |
| 1st Author's Affiliation | Alps Electric Co.,Ltd.() |
| 2nd Author's Name | Yoshito Sasaki |
| 2nd Author's Affiliation | Alps Electric Co.,Ltd. |
| 3rd Author's Name | Takashi Hatanai |
| 3rd Author's Affiliation | Alps Electric Co.,Ltd. |
| 4th Author's Name | Akihiro Makino |
| 4th Author's Affiliation | Alps Electric Co.,Ltd. |
| 5th Author's Name | Toshiro Sato |
| 5th Author's Affiliation | Shinsyu University |
| 6th Author's Name | Kiyohito Yamasawa |
| 6th Author's Affiliation | Shinsyu University |
| Date | 1997/11/7 |
| Paper # | EE97-51 |
| Volume (vol) | vol.97 |
| Number (no) | 367 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |