| Presentation | 2009-09-17 FPGA implementation and accuracy evaluation of a power-supply voltage control circuit Masato SOEJIMA, Jyunya SAKEMI, Yuichiro SHIBATA, Fujio KUROKAWA, Tsuyoshi HAMADA, Tomonari MASADA, Kiyoshi OGURI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Demands for more steady and more efficient direct voltage power supplies have been increasing in the context of energy conservation measures. Digital DC-DC converters are especially gathering attention because they have a high degree of reliability and flexibility. This paper addresses an FPGA-based control mechanism for a DC-DC converter. This approach enables programmability for a wide range of control algorithms while higher operational speed is anticipated. In this paper, we discuss required arithmetic precision and trade-off relationship between control accuracy and hardware costs through prototype implementation of an FPGA-based DC-DC converter. Evaluation of the prototype system reveals that fixed point arithmetic with 10-bit fraction part is enough in terms of dynamic characteristics. Design of a counter module which uses multiple phase-shifted clock signals to increase the PWM resolution while keeping the system clock frequency low is also discussed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FPGA / DC-DC Converter / Switching Power Supply / Digital Control |
| Paper # | RECONF2009-22 |
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| Conference Information | |
| Committee | RECONF |
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| Conference Date | 2009/9/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Reconfigurable Systems (RECONF) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | FPGA implementation and accuracy evaluation of a power-supply voltage control circuit |
| Sub Title (in English) | |
| Keyword(1) | FPGA |
| Keyword(2) | DC-DC Converter |
| Keyword(3) | Switching Power Supply |
| Keyword(4) | Digital Control |
| 1st Author's Name | Masato SOEJIMA |
| 1st Author's Affiliation | Nagasaki University() |
| 2nd Author's Name | Jyunya SAKEMI |
| 2nd Author's Affiliation | Nagasaki University |
| 3rd Author's Name | Yuichiro SHIBATA |
| 3rd Author's Affiliation | Nagasaki University |
| 4th Author's Name | Fujio KUROKAWA |
| 4th Author's Affiliation | Nagasaki University |
| 5th Author's Name | Tsuyoshi HAMADA |
| 5th Author's Affiliation | Nagasaki University |
| 6th Author's Name | Tomonari MASADA |
| 6th Author's Affiliation | Nagasaki University |
| 7th Author's Name | Kiyoshi OGURI |
| 7th Author's Affiliation | Nagasaki University |
| Date | 2009-09-17 |
| Paper # | RECONF2009-22 |
| Volume (vol) | vol.109 |
| Number (no) | 198 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |