標題: Regulated Charge Pump With New Clocking Scheme for Smoothing the Charging Current in Low Voltage CMOS Process
作者: Luo, Zhicong
Ker, Ming-Dou
Cheng, Wan-Hsueh
Yen, Ting-Yang
電子工程學系及電子研究所
生醫電子轉譯研究中心
Department of Electronics Engineering and Institute of Electronics
Biomedical Electronics Translational Research Center
關鍵字: Charge pump;charging current ripples;high-voltage-tolerant;peak current;power efficiency;transient behaviors
公開日期: 1-Mar-2017
摘要: A regulated cross-couple charge pump with new charging current smoothing technique is proposed and verified in a 0.18-mu m 1.8-V/3.3-V CMOS process. The transient behaviors of 3-stage cross-couple charge pump and the expressions for the charging current are described in detail. The experiment results show that the charging current ripples are reduced by a factor of three through using the proposed new clocking scheme. The voltage ripples in the power supply line, which is connected with the charge pump input, are also smoothed greatly as the filter circuit does. The proposed scheme is used to decrease the smoothing capacitance in the power line of charge pump for reducing the size of implantable devices in biomedical application. In addition, the power efficiency is improved. The proposed cross-couple charge pump can provide 10.5-V output voltage with 3.5-mA output current, and the power efficiency of the charge pump can be up to 69%.
URI: http://dx.doi.org/10.1109/TCSI.2016.2619693
http://hdl.handle.net/11536/145304
ISSN: 1549-8328
DOI: 10.1109/TCSI.2016.2619693
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume: 64
起始頁: 528
結束頁: 536
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