A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application
This work proposes a CMOS reconfigurable charge pump (CP) for a low-voltage energy harvesting system. It utilizes the low effective resistance from the parallel CP to enhance its power conversion efficiency (PCE). The CP exhibits an adaptive configuration with different stages depending on the input...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10243009/ |
| _version_ | 1797685345307852800 |
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| author | Yong Jack Kee Harikrishnan Ramiah Kishore Kumar Pakkirisami Churchill Gabriel Chong Saad Mekhilef Nai Shyan Lai Yong Chen Pui-In Mak Rui P. Martins |
| author_facet | Yong Jack Kee Harikrishnan Ramiah Kishore Kumar Pakkirisami Churchill Gabriel Chong Saad Mekhilef Nai Shyan Lai Yong Chen Pui-In Mak Rui P. Martins |
| author_sort | Yong Jack Kee |
| collection | DOAJ |
| description | This work proposes a CMOS reconfigurable charge pump (CP) for a low-voltage energy harvesting system. It utilizes the low effective resistance from the parallel CP to enhance its power conversion efficiency (PCE). The CP exhibits an adaptive configuration with different stages depending on the input voltage, changing its voltage conversion ratio (VCR) to limit the output voltage under 1.8-V. Additionally, this work develops a novel dynamic source-fed oscillator that modulates the oscillating frequency by utilizing a dynamic source for the ring-voltage controlled oscillator (RVCO). The independent source from the RVCO and the clock-generating units from the proposed technique permit the implementation of frequency modulation without affecting the clock amplitude. Fabricated in 65-nm CMOS, the proposed prototype measures 62% peak PCE with an input voltage range of 0.26-V to 0.64-V. |
| first_indexed | 2024-03-12T00:42:50Z |
| format | Article |
| id | doaj.art-144097456adf41eb92b48085f583938a |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-12T00:42:50Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-144097456adf41eb92b48085f583938a2023-09-14T23:01:26ZengIEEEIEEE Access2169-35362023-01-0111976419765310.1109/ACCESS.2023.331272710243009A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting ApplicationYong Jack Kee0Harikrishnan Ramiah1https://orcid.org/0000-0003-3505-6525Kishore Kumar Pakkirisami Churchill2Gabriel Chong3Saad Mekhilef4https://orcid.org/0000-0001-8544-8995Nai Shyan Lai5Yong Chen6https://orcid.org/0000-0002-2794-1324Pui-In Mak7https://orcid.org/0000-0002-3579-8740Rui P. Martins8https://orcid.org/0000-0003-2821-648XDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, MalaysiaDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, MalaysiaDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, MalaysiaNexperia Research and Development Penang, Bayan Lepas, MalaysiaSchool of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC, AustraliaSchool of Engineering, Asia Pacific University of Technology and Innovation, Kuala Lumpur, MalaysiaInstitute of Microelectronics, State Key Laboratory of Analog and Mixed Signal VLSI, Faculty of Science and Technology–ECE, University of Macau, Macau, ChinaInstitute of Microelectronics, State Key Laboratory of Analog and Mixed Signal VLSI, Faculty of Science and Technology–ECE, University of Macau, Macau, ChinaInstitute of Microelectronics, State Key Laboratory of Analog and Mixed Signal VLSI, Faculty of Science and Technology–ECE, University of Macau, Macau, ChinaThis work proposes a CMOS reconfigurable charge pump (CP) for a low-voltage energy harvesting system. It utilizes the low effective resistance from the parallel CP to enhance its power conversion efficiency (PCE). The CP exhibits an adaptive configuration with different stages depending on the input voltage, changing its voltage conversion ratio (VCR) to limit the output voltage under 1.8-V. Additionally, this work develops a novel dynamic source-fed oscillator that modulates the oscillating frequency by utilizing a dynamic source for the ring-voltage controlled oscillator (RVCO). The independent source from the RVCO and the clock-generating units from the proposed technique permit the implementation of frequency modulation without affecting the clock amplitude. Fabricated in 65-nm CMOS, the proposed prototype measures 62% peak PCE with an input voltage range of 0.26-V to 0.64-V.https://ieeexplore.ieee.org/document/10243009/Reconfigurable charge pump (CP)ring-voltage controlled oscillator (RVCO)dc-to-dc converterlow power energy harvestingCMOSpower conversion efficiency (PCE) |
| spellingShingle | Yong Jack Kee Harikrishnan Ramiah Kishore Kumar Pakkirisami Churchill Gabriel Chong Saad Mekhilef Nai Shyan Lai Yong Chen Pui-In Mak Rui P. Martins A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application IEEE Access Reconfigurable charge pump (CP) ring-voltage controlled oscillator (RVCO) dc-to-dc converter low power energy harvesting CMOS power conversion efficiency (PCE) |
| title | A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application |
| title_full | A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application |
| title_fullStr | A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application |
| title_full_unstemmed | A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application |
| title_short | A Subthreshold Operation Series-Parallel Charge Pump Incorporating Dynamic Source-Fed Oscillator for Wide-Input-Voltage Energy Harvesting Application |
| title_sort | subthreshold operation series parallel charge pump incorporating dynamic source fed oscillator for wide input voltage energy harvesting application |
| topic | Reconfigurable charge pump (CP) ring-voltage controlled oscillator (RVCO) dc-to-dc converter low power energy harvesting CMOS power conversion efficiency (PCE) |
| url | https://ieeexplore.ieee.org/document/10243009/ |
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