Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors
In this paper, an optimal design of a high-efficiency DC-DC boost converter is proposed for RF energy harvesting Internet of Things (IoT) sensors. Since the output DC voltage of the RF-DC rectifier for RF energy harvesting varies considerably depending on the RF input power, the DC-DC boost converte...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/24/10007 |
| _version_ | 1797455338031546368 |
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| author | Juntae Kim Ickjin Kwon |
| author_facet | Juntae Kim Ickjin Kwon |
| author_sort | Juntae Kim |
| collection | DOAJ |
| description | In this paper, an optimal design of a high-efficiency DC-DC boost converter is proposed for RF energy harvesting Internet of Things (IoT) sensors. Since the output DC voltage of the RF-DC rectifier for RF energy harvesting varies considerably depending on the RF input power, the DC-DC boost converter following the RF-DC rectifier is required to achieve high power conversion efficiency (PCE) in a wide input voltage range. Therefore, based on the loss analysis and modeling of an inductor-based DC-DC boost converter, an optimal design method of design parameters, including inductance and peak inductor current, is proposed to obtain the maximum PCE by minimizing the total loss according to different input voltages in a wide input voltage range. A high-efficiency DC-DC boost converter for RF energy harvesting applications is designed using a 65 nm CMOS process. The modeled total losses agree well with the circuit simulation results and the proposed loss modeling results accurately predict the optimal design parameters to obtain the maximum PCE. Based on the proposed loss modeling, the optimally designed DC-DC boost converter achieves a power conversion efficiency of 96.5% at a low input voltage of 0.1 V and a peak efficiency of 98.4% at an input voltage of 0.4 V. |
| first_indexed | 2024-03-09T15:51:58Z |
| format | Article |
| id | doaj.art-d96e0d0ac4e84ba5904f790151e5e00f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T15:51:58Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d96e0d0ac4e84ba5904f790151e5e00f2023-11-24T17:58:59ZengMDPI AGSensors1424-82202022-12-0122241000710.3390/s222410007Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT SensorsJuntae Kim0Ickjin Kwon1Department of Electrical and Computer Engineering, College of Information Technology, Ajou University, Suwon 16499, Republic of KoreaDepartment of Electrical and Computer Engineering, College of Information Technology, Ajou University, Suwon 16499, Republic of KoreaIn this paper, an optimal design of a high-efficiency DC-DC boost converter is proposed for RF energy harvesting Internet of Things (IoT) sensors. Since the output DC voltage of the RF-DC rectifier for RF energy harvesting varies considerably depending on the RF input power, the DC-DC boost converter following the RF-DC rectifier is required to achieve high power conversion efficiency (PCE) in a wide input voltage range. Therefore, based on the loss analysis and modeling of an inductor-based DC-DC boost converter, an optimal design method of design parameters, including inductance and peak inductor current, is proposed to obtain the maximum PCE by minimizing the total loss according to different input voltages in a wide input voltage range. A high-efficiency DC-DC boost converter for RF energy harvesting applications is designed using a 65 nm CMOS process. The modeled total losses agree well with the circuit simulation results and the proposed loss modeling results accurately predict the optimal design parameters to obtain the maximum PCE. Based on the proposed loss modeling, the optimally designed DC-DC boost converter achieves a power conversion efficiency of 96.5% at a low input voltage of 0.1 V and a peak efficiency of 98.4% at an input voltage of 0.4 V.https://www.mdpi.com/1424-8220/22/24/10007RF energy harvestingDC-DC converterboost converterhigh efficiencyefficiency optimization |
| spellingShingle | Juntae Kim Ickjin Kwon Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors Sensors RF energy harvesting DC-DC converter boost converter high efficiency efficiency optimization |
| title | Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors |
| title_full | Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors |
| title_fullStr | Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors |
| title_full_unstemmed | Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors |
| title_short | Design of a High-Efficiency DC-DC Boost Converter for RF Energy Harvesting IoT Sensors |
| title_sort | design of a high efficiency dc dc boost converter for rf energy harvesting iot sensors |
| topic | RF energy harvesting DC-DC converter boost converter high efficiency efficiency optimization |
| url | https://www.mdpi.com/1424-8220/22/24/10007 |
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