Abstract
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 (CF), the QZ network, two diodes, and a N-channel MOS switch. A 60 W laboratory prototype DC–DC converter achieved 94.9% power efficiency.
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference30 articles.
1. An Area Efficient Thermal Energy Harvester with Reconfigurable Capacitor Charge Pump for IoT Applications;Sungjun;IEEE Trans. Circuits Syst. II Express Briefs,2018
2. Low-Voltage Capacitive-Based Step-Up DC-DC Converters for RF Energy Harvesting System: A Review;Kishore;IEEE Access,2020
3. Min-Woo, K., Hyunki, H., and Hyun-Sik, K. (2021, January 13–22). 17.8 A 90.5%-Efficiency 28.7μVRMS-Noise Bipolar-Output High- Step-Up SC DC-DC Converter with Energy-Recycled Regulation and Post-Filtering for ±15 V TFT-Based LAE Sensors. Proceedings of the 2021 IEEE International Solid- State Circuits Conference (ISSCC), San Francisco, CA, USA.
4. A High Step-Up Three-Port DC–DC Converter for Stand-Alone PV/Battery Power Systems;Chen;IEEE Trans. Power Electron.,2013
5. Grid-Connected Photovoltaic Generation System;Wai;IEEE Trans. Circuits Syst. I Regul. Pap.,2008
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