A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter

Kuo Hsing Cheng; Chia Wei Su; Hsin Hsin Ko

doi:10.1109/ICECS.2008.4674889

A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter

Kuo Hsing Cheng
, Chia Wei Su
, Hsin Hsin Ko

電機工程學系

研究成果: 書貢獻/報告類型 › 會議論文篇章 › 同行評審

37 引文斯高帕斯（Scopus）

摘要

In this paper, a high accuracy, high efficiency, and wide current sensing range on chip current sensing technique is presented. The proposed current sensing circuit uses simple switch technique to achieve high accuracy. The current sensing circuit has no OP amplifier so that it would not reduce the power efficiency. The test chip is fabricated in TSMC 0.18μm 1P6M 3.3V CMOS process. The measurement results show that the buck converter with on-chip current sensing circuit can operate from 700KHz to 1.4MHz with supply voltage from 2.5 to 5 V for lithium ion battery application. The accuracy of proposed current sensing circuit is higher than 89.8% for load current from 50 to 500mA and for temperature from 0 to 100°C. The power efficiency of the buck converter is up to 91.2%.

原文	???core.languages.en_GB???
主出版物標題	Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
頁面	458-461
頁數	4
DOIs	https://doi.org/10.1109/ICECS.2008.4674889
出版狀態	已出版 - 2008
事件	15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 - St. Julian's, Malta 持續時間: 31 8月 2008 → 3 9月 2008

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名字	Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
國家/地區	Malta
城市	St. Julian's
期間	31/08/08 → 3/09/08

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10.1109/ICECS.2008.4674889

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Cheng, K. H., Su, C. W., & Ko, H. H. (2008). A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter. 於 Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 (頁 458-461). 文章 4674889 (Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008). https://doi.org/10.1109/ICECS.2008.4674889

Cheng, Kuo Hsing ; Su, Chia Wei ; Ko, Hsin Hsin. / A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter. Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008. 2008. 頁 458-461 (Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008).

@inproceedings{4dcff561c5b147dfac585caf61d506a0,

title = "A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter",

abstract = "In this paper, a high accuracy, high efficiency, and wide current sensing range on chip current sensing technique is presented. The proposed current sensing circuit uses simple switch technique to achieve high accuracy. The current sensing circuit has no OP amplifier so that it would not reduce the power efficiency. The test chip is fabricated in TSMC 0.18μm 1P6M 3.3V CMOS process. The measurement results show that the buck converter with on-chip current sensing circuit can operate from 700KHz to 1.4MHz with supply voltage from 2.5 to 5 V for lithium ion battery application. The accuracy of proposed current sensing circuit is higher than 89.8\% for load current from 50 to 500mA and for temperature from 0 to 100°C. The power efficiency of the buck converter is up to 91.2\%.",

author = "Cheng, \{Kuo Hsing\} and Su, \{Chia Wei\} and Ko, \{Hsin Hsin\}",

year = "2008",

doi = "10.1109/ICECS.2008.4674889",

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isbn = "9781424421824",

series = "Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008",

pages = "458--461",

booktitle = "Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008",

note = "15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 ; Conference date: 31-08-2008 Through 03-09-2008",

}

Cheng, KH, Su, CW & Ko, HH 2008, A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter. 於 Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008., 4674889, Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008, 頁 458-461, 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008, St. Julian's, Malta, 31/08/08. https://doi.org/10.1109/ICECS.2008.4674889

A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter. / Cheng, Kuo Hsing; Su, Chia Wei; Ko, Hsin Hsin.
Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008. 2008. p. 458-461 4674889 (Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008).

研究成果: 書貢獻/報告類型 › 會議論文篇章 › 同行評審

TY - GEN

T1 - A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter

AU - Cheng, Kuo Hsing

AU - Su, Chia Wei

AU - Ko, Hsin Hsin

PY - 2008

Y1 - 2008

N2 - In this paper, a high accuracy, high efficiency, and wide current sensing range on chip current sensing technique is presented. The proposed current sensing circuit uses simple switch technique to achieve high accuracy. The current sensing circuit has no OP amplifier so that it would not reduce the power efficiency. The test chip is fabricated in TSMC 0.18μm 1P6M 3.3V CMOS process. The measurement results show that the buck converter with on-chip current sensing circuit can operate from 700KHz to 1.4MHz with supply voltage from 2.5 to 5 V for lithium ion battery application. The accuracy of proposed current sensing circuit is higher than 89.8% for load current from 50 to 500mA and for temperature from 0 to 100°C. The power efficiency of the buck converter is up to 91.2%.

AB - In this paper, a high accuracy, high efficiency, and wide current sensing range on chip current sensing technique is presented. The proposed current sensing circuit uses simple switch technique to achieve high accuracy. The current sensing circuit has no OP amplifier so that it would not reduce the power efficiency. The test chip is fabricated in TSMC 0.18μm 1P6M 3.3V CMOS process. The measurement results show that the buck converter with on-chip current sensing circuit can operate from 700KHz to 1.4MHz with supply voltage from 2.5 to 5 V for lithium ion battery application. The accuracy of proposed current sensing circuit is higher than 89.8% for load current from 50 to 500mA and for temperature from 0 to 100°C. The power efficiency of the buck converter is up to 91.2%.

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BT - Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008

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Cheng KH, Su CW, Ko HH. A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter. 於 Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008. 2008. p. 458-461. 4674889. (Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008). doi: 10.1109/ICECS.2008.4674889

A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter

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