| Presentation | 2018-01-25 Examination of Multi-phase Ripple-based Converter with Constant On-Time Control Yi Xiong, Koyo Asaishi, Natsuko Miki, Yifei Sun, Nobukazu Tsukiji, Yasunori Kobori, Haruo Kobayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigated multiphase buck converter in ripple control DC - DC power supply with constant on - time (COT) control by simulation. In the ripple control power supply, since there is no fixed clock inside due to the fluctuating cycle, the period is detected by the peak hold voltage based on a saw-tooth wave circuit. As a four-phase system, by quartering the peak voltage and comparing them with the saw-tooth wave, a set of four-phase PWMs is generated to obtain stable current balanceand excellent response characteristics. Compared to single phase converter, low output ripple and fast transient response are shown. As a result, the output voltage ripple was greatly reduced and the supply of large output current was confirmed. Moreover, we confirmed the element sensitivity of the current balance, it turned out that the sensitivity of the on time error of the main control PWM signal was high and the influence of the other element variation was small. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ripple control converter / COT / clock-less converter / four-phase control / current balance / element sensitivity |
| Paper # | CAS2017-113,ICTSSL2017-40 |
| Date of Issue | 2018-01-18 (CAS, ICTSSL) |
| Conference Information | |
| Committee | ICTSSL / CAS |
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| Conference Date | 2018/1/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Student Session, etc. |
| Chair | Kazunori Okada(NICT) / Mitsuru Hiraki(Renesas) |
| Vice Chair | Hiroshi Tamura(Chuo Univ.) / Keisuke Nakano(Niigata Univ.) / Hideaki Okazaki(Shonan Inst. of Tech.) |
| Secretary | Hiroshi Tamura(NTT DoCoMo) / Keisuke Nakano(Shizuoka Univ.) / Hideaki Okazaki(Renesas) |
| Assistant | Shosuke Sato(Tohoku Univ.) / Tomotaka Wada(Kansai Univ.) / Kazuyuki Miyakita(Niigata Univ.) / Yohei Nakamura(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Information and Communication Technologies for Safe and Secure Life / Technical Committee on Circuits and Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Examination of Multi-phase Ripple-based Converter with Constant On-Time Control |
| Sub Title (in English) | |
| Keyword(1) | ripple control converter |
| Keyword(2) | COT |
| Keyword(3) | clock-less converter |
| Keyword(4) | four-phase control |
| Keyword(5) | current balance |
| Keyword(6) | element sensitivity |
| 1st Author's Name | Yi Xiong |
| 1st Author's Affiliation | Gunma University(Gunma Univ.) |
| 2nd Author's Name | Koyo Asaishi |
| 2nd Author's Affiliation | Gunma University(Gunma Univ.) |
| 3rd Author's Name | Natsuko Miki |
| 3rd Author's Affiliation | Gunma University(Gunma Univ.) |
| 4th Author's Name | Yifei Sun |
| 4th Author's Affiliation | Gunma University(Gunma Univ.) |
| 5th Author's Name | Nobukazu Tsukiji |
| 5th Author's Affiliation | Gunma University(Gunma Univ.) |
| 6th Author's Name | Yasunori Kobori |
| 6th Author's Affiliation | Gunma University(Gunma Univ.) |
| 7th Author's Name | Haruo Kobayashi |
| 7th Author's Affiliation | Gunma University(Gunma Univ.) |
| Date | 2018-01-25 |
| Paper # | CAS2017-113,ICTSSL2017-40 |
| Volume (vol) | vol.117 |
| Number (no) | CAS-400,ICTSSL-401 |
| Page | pp.pp.23-27(CAS), pp.23-27(ICTSSL), |
| #Pages | 5 |
| Date of Issue | 2018-01-18 (CAS, ICTSSL) |