Print Email Facebook Twitter A Reconfigurable Cold-Startup SSHI Rectifier with 4X Lower Input Amplitude Requirement for Piezoelectric Energy Harvesting Title A Reconfigurable Cold-Startup SSHI Rectifier with 4X Lower Input Amplitude Requirement for Piezoelectric Energy Harvesting Author Yue, X. (TU Delft Electronic Instrumentation) Zou, Yiwei (Student TU Delft) Chen, Zhelun (Student TU Delft) Liang, Junrui (ShanghaiTech University) Du, S. (TU Delft Electronic Instrumentation) Date 2022 Abstract Synchronized switch harvesting on inductor (SSHI) is an efficient active rectifier to extract energy generated from piezoelectric transducer in piezoelectric energy harvesting system. Unlike passive rectifiers, SSHI rectifiers require a power supply to drive synchronized switches. Unfortunately, there is no stable supply when the system starts from the cold state. Most designs let the system work as a passive full bridge rectifier (FBR) to charge power capacitor until a supply is available. However, a FBR requires high open-circuit voltage (VOC) and the FBR’s output voltage cannot go over VOC. This prevents the system from starting the SSHI rectifier if VOC is low. This paper proposes a new transducer reconfiguration design to lower the required VOC by 4 $\times$ to start up the SSHI system from the cold state. The proposed system is designed in a 0.18$-\mu$m BCD process and post-layout simulations show that the successful cold-startup under low VOC voltage. Subject Power suppliesSimulationRectifiersBridge circuitsSwitchesThreshold voltagePower capacitorsCold-startupenergy harvestingfull bridge rectifieropen-circuit voltagepiezoelectric transducerSSHI rectifier To reference this document use: http://resolver.tudelft.nl/uuid:78246300-891e-480b-9cb1-f6b74caae0d9 DOI https://doi.org/10.1109/ISCAS48785.2022.9937838 Publisher IEEE, Danvers Embargo date 2023-07-01 ISBN 978-1-6654-8486-2 Source Proceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS) Event 2022 IEEE International Symposium on Circuits and Systems (ISCAS), 2022-05-27 → 2022-06-01, Austin, United States Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2022 X. Yue, Yiwei Zou, Zhelun Chen, Junrui Liang, S. Du Files PDF A_Reconfigurable_Cold_Sta ... esting.pdf 4.17 MB Close viewer /islandora/object/uuid:78246300-891e-480b-9cb1-f6b74caae0d9/datastream/OBJ/view