TY - GEN
T1 - A Piezoelectric Energy Harvesting Interface for Irregular High Voltage Input with Partial Electric Charge Extraction with 3.9× Extraction Improvement
AU - Khan, Muhammad Bilawal
AU - Saif, Hassan
AU - Lee, Yoonmyung
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - A novel energy harvesting technique for piezoelectric transducers (PZTs) is proposed to enable energy harvesting from irregular high voltage inputs. With the proposed partial electrical charge extraction (PECE) scheme, a small portion of the charges generated by the PZT is repeatedly transferred to the battery until the input excitation is finished. With PECE, the PZT output voltage is automatically regulated at the maximum voltage level allowed by technology (VMAX) while maximizing energy extraction from the PZT. This allows energy harvesting from irregular PZT excitations that can generate open circuit voltage (VOC) higher than VMAX. The measurement results with a test chip fabricated in 350nm process show that the proposed harvester successfully harvests energy from the excitation with VOC of up to 60V, higher than VMAX of 30V, with up to 3.9 × improvement compared with a conventional full bridge rectifier (FBR).
AB - A novel energy harvesting technique for piezoelectric transducers (PZTs) is proposed to enable energy harvesting from irregular high voltage inputs. With the proposed partial electrical charge extraction (PECE) scheme, a small portion of the charges generated by the PZT is repeatedly transferred to the battery until the input excitation is finished. With PECE, the PZT output voltage is automatically regulated at the maximum voltage level allowed by technology (VMAX) while maximizing energy extraction from the PZT. This allows energy harvesting from irregular PZT excitations that can generate open circuit voltage (VOC) higher than VMAX. The measurement results with a test chip fabricated in 350nm process show that the proposed harvester successfully harvests energy from the excitation with VOC of up to 60V, higher than VMAX of 30V, with up to 3.9 × improvement compared with a conventional full bridge rectifier (FBR).
KW - partial electric charge extraction
KW - partial harvesting
KW - PECE
KW - piezoelectric energy harvester
KW - PZT
UR - https://www.scopus.com/pages/publications/85083651312
U2 - 10.1109/A-SSCC47793.2019.9056937
DO - 10.1109/A-SSCC47793.2019.9056937
M3 - Conference contribution
AN - SCOPUS:85083651312
T3 - Proceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
SP - 181
EP - 184
BT - Proceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
Y2 - 4 November 2019 through 6 November 2019
ER -