| Affiliated with RC | false |
| Status | 已發表Published |
| A 470-nA Quiescent Current and 92.7%/94.7% Efficiency DCT/PWM Control Buck Converter with Seamless Mode Selection for IoT Application | |
Zeng,Wen Liang1,2,3 ; Ren,Yuan1; Lam,Chi Seng1,2,3  ; Sin,Sai Weng1,2,3; Che,Weng Keong2,5; Ding,Ran4; Martins,Rui Paulo1,2
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| 2020-11-01 | |
| Source Publication | IEEE Transactions on Circuits and Systems I: Regular Papers
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| ISSN | 1549-8328 |
| Volume | 67Issue:11Pages:4085-4098 |
| Abstract | An ultra-low quiescent current dual-mode buck converter system is designed for IoT application, which includes a double clock time (DCT) and a pulse-width-modulation (PWM) control modes. The proposed DCT mode can reduce the conversion loss over a wide loading range from nA-to-mA and achieve seamless mode transition from DCT to PWM control. Implemented in a 0.18μm CMOS, this converter achieves a peak efficiency of 92.7%94.7% in DCT/PWM and >80% efficiency from 10μ A to 50 mA (5000x), with a wide input voltage from 2 V to 5 V. A quiescent current of 470 nA including bandgap voltage reference and internal oscillator is achieved. The DCT-to-PWM mode selection mechanism achieves an undershoot of 80 mV at 11μs recovery time when load current jumps from 6.67μ A to 50 mA. |
| Keyword | Buck Converter Discontinuous Conduction Mode (Dcm) Double Clock Time (Dct) Control Internet Of Things (Iot) Mode Selection Pulse-width-modulation (Pwm) Current Mode Control Ultra-low-quiescent Current |
| DOI | 10.1109/TCSI.2020.3006200 |
| URL | View the original |
| Indexed By | SCIE |
| Language | 英語English |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Electrical & Electronic |
| WOS ID | WOS:000583739900040 |
| Scopus ID | 2-s2.0-85095696961 |
| Fulltext Access | |
| Citation statistics | |
| Document Type | Journal article |
| Collection | DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING INSTITUTE OF MICROELECTRONICS |
| Corresponding Author | Lam,Chi Seng; Sin,Sai Weng |
| Affiliation | 1.State Key Laboratory of Analog and Mixed-Signal,VLSI,University of Macau,999078,Macao 2.Institute of Microelectronics,University of Macau,999078,Macao 3.Department of Electrical and Computer Engineering,Faculty of Science and Technology,University of Macau,999078,Macao 4.Allwinner Technology Company Ltd.,Zhuhai,519085,China 5.Instituto Superior Técnico,Universidade de Lisboa,Lisbon,1049-001,Portugal |
| First Author Affilication | University of Macau; Faculty of Science and Technology |
| Corresponding Author Affilication | University of Macau; Faculty of Science and Technology |
| Recommended Citation GB/T 7714 | Zeng,Wen Liang,Ren,Yuan,Lam,Chi Seng,et al. A 470-nA Quiescent Current and 92.7%/94.7% Efficiency DCT/PWM Control Buck Converter with Seamless Mode Selection for IoT Application[J]. IEEE Transactions on Circuits and Systems I: Regular Papers,2020,67(11):4085-4098. |
| APA | Zeng,Wen Liang,Ren,Yuan,Lam,Chi Seng,Sin,Sai Weng,Che,Weng Keong,Ding,Ran,&Martins,Rui Paulo.(2020).A 470-nA Quiescent Current and 92.7%/94.7% Efficiency DCT/PWM Control Buck Converter with Seamless Mode Selection for IoT Application.IEEE Transactions on Circuits and Systems I: Regular Papers,67(11),4085-4098. |
| MLA | Zeng,Wen Liang,et al."A 470-nA Quiescent Current and 92.7%/94.7% Efficiency DCT/PWM Control Buck Converter with Seamless Mode Selection for IoT Application".IEEE Transactions on Circuits and Systems I: Regular Papers 67.11(2020):4085-4098. |
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