Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology
The step-up DC–DC converter is widely used for applications such as IoT sensor nodes, energy harvesting, and photovoltaic (PV) systems. In this article, a new topological quasi-Z-source (QZ) high step-up DC–DC converter for the PV system is proposed. The topology of this converter is based on the vo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/24/9893 |
| _version_ | 1797455339630624768 |
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| author | Toru Sai Younghyun Moon Yasuhiro Sugimoto |
| author_facet | Toru Sai Younghyun Moon Yasuhiro Sugimoto |
| author_sort | Toru Sai |
| collection | DOAJ |
| description | The step-up DC–DC converter is widely used for applications such as IoT sensor nodes, energy harvesting, and photovoltaic (PV) systems. In this article, a new topological quasi-Z-source (QZ) high step-up DC–DC converter for the PV system is proposed. The topology of this converter is based on the voltage-doubler circuits. Compared with a conventional quasi-Z-source DC–DC converter, the proposed converter features low voltage ripple at the output, the use of a common ground switch, and low stress on circuit components. The new topology, named a low-side-drive quasi-Z-source boost converter (LQZC), consists of a flying capacitor (<i>C</i><sub>F</sub>), the QZ network, two diodes, and a N-channel MOS switch. A 60 W laboratory prototype DC–DC converter achieved 94.9% power efficiency. |
| first_indexed | 2024-03-09T15:53:00Z |
| format | Article |
| id | doaj.art-e10cd8719ba7497abe30f5efcd9d3cea |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T15:53:00Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-e10cd8719ba7497abe30f5efcd9d3cea2023-11-24T17:57:03ZengMDPI AGSensors1424-82202022-12-012224989310.3390/s22249893Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler TopologyToru Sai0Younghyun Moon1Yasuhiro Sugimoto2Faculty of Engineering, Tokyo Polytechnic University, Tokyo 243-0297, Kanagawa, JapanFaculty of Engineering, Tokyo Polytechnic University, Tokyo 243-0297, Kanagawa, JapanSugimoto Registered Consulting Engineer’s Office, Yokohama 224-0056, Kanagawa, JapanThe step-up DC–DC converter is widely used for applications such as IoT sensor nodes, energy harvesting, and photovoltaic (PV) systems. In this article, a new topological quasi-Z-source (QZ) high step-up DC–DC converter for the PV system is proposed. The topology of this converter is based on the voltage-doubler circuits. Compared with a conventional quasi-Z-source DC–DC converter, the proposed converter features low voltage ripple at the output, the use of a common ground switch, and low stress on circuit components. The new topology, named a low-side-drive quasi-Z-source boost converter (LQZC), consists of a flying capacitor (<i>C</i><sub>F</sub>), the QZ network, two diodes, and a N-channel MOS switch. A 60 W laboratory prototype DC–DC converter achieved 94.9% power efficiency.https://www.mdpi.com/1424-8220/22/24/9893high step-up DC–DC converterquasi-Z-sourcevoltage-doublerhigh-side driver freelow voltage stress |
| spellingShingle | Toru Sai Younghyun Moon Yasuhiro Sugimoto Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology Sensors high step-up DC–DC converter quasi-Z-source voltage-doubler high-side driver free low voltage stress |
| title | Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology |
| title_full | Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology |
| title_fullStr | Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology |
| title_full_unstemmed | Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology |
| title_short | Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology |
| title_sort | improved quasi z source high step up dc dc converter based on voltage doubler topology |
| topic | high step-up DC–DC converter quasi-Z-source voltage-doubler high-side driver free low voltage stress |
| url | https://www.mdpi.com/1424-8220/22/24/9893 |
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