| 講演抄録/キーワード |
| 講演名 |
2010-12-17 16:15
A 1-V Input, 0.2-V to 0.47-V Output Switched-Capacitor DC-DC Converter with Pulse Density and Width Modulation (PDWM) for 57% Ripple Reduction ○Xin Zhang・Yu Pu・Koichi Ishida(Univ. of Tokyo)・Yoshikatsu Ryu・Yasuyuki Okuma(STARC)・Po-Hung Chen(Univ. of Tokyo)・Kazunori Watanabe(STARC)・Takayasu Sakurai・Makoto Takamiya(Univ. of Tokyo) ICD2010-127 |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
To effectively reduce output ripple of switched-capacitor DC-DC converters which generate variable output voltages, a novel feedback control scheme is presented. The proposed scheme uses pulse density and width modulation (PDWM) to reduce the output ripple with low output voltage. The prototype chip was implemented using 65nm CMOS process. The switched-capacitor DC-DC converter has 0.2-V to 0.47-V output voltage and delivers 0.25-mA to 10-mA output current from a 1-V input supply with a peak efficiency of 87%. Compared with the conventional pulse density modulation (PDM), the proposed switched-capacitor DC-DC converter with PDWM reduces the output ripple by 57% in the low output voltage region with the efficiency penalty of 2%. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
Switched-Capacitor / DC-DC Converter / Ripple / / / / / |
| 文献情報 |
信学技報, vol. 110, no. 344, ICD2010-127, pp. 163-167, 2010年12月. |
| 資料番号 |
ICD2010-127 |
| 発行日 |
2010-12-09 (ICD) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
ICD2010-127 |