TY - JOUR

T1 - Kompaktes induktives Energieübertragungssystem mit mehreren Spulen und passivem Spitzenspannungsdetektor für drahtlose Sensorknoten

AU - Bouattour, Ghada

AU - Kallel, Bilel

AU - Viehweger, Christian

AU - Kanoun, Olfa

N1 - Publisher Copyright: © 2022 Walter de Gruyter GmbH, Berlin/Boston.

PY - 2022/9/1

Y1 - 2022/9/1

N2 - In Inductive Power Transfer (IPT) the misalignment between sending and receiving coils is critical and significantly influences both transfer efficiency and charging time. It can be compensated by the use of multiple coils on the sender side. However, by increasing the number of sending coils, the supply circuit becomes big, complex and not easy to control. In this paper, we propose a compact and efficient supply circuit for multi-coil IPT systems, which activates only the coil under the receiving coil. The receiver detection is based on a compact passive peak voltage detector measuring the sending coil voltage variation. The receiver coil position determination is supported by measurements of the sending coil neighbours voltages, so that a stable power transfer to battery-free wireless sensor nodes can be realized. The investigation of the influence of the type, the shape, and the size of conductive materials between sender and receiver shows that the system can distinguish between the receiver coil and different metallic objects such as iron, coins, and copper.

AB - In Inductive Power Transfer (IPT) the misalignment between sending and receiving coils is critical and significantly influences both transfer efficiency and charging time. It can be compensated by the use of multiple coils on the sender side. However, by increasing the number of sending coils, the supply circuit becomes big, complex and not easy to control. In this paper, we propose a compact and efficient supply circuit for multi-coil IPT systems, which activates only the coil under the receiving coil. The receiver detection is based on a compact passive peak voltage detector measuring the sending coil voltage variation. The receiver coil position determination is supported by measurements of the sending coil neighbours voltages, so that a stable power transfer to battery-free wireless sensor nodes can be realized. The investigation of the influence of the type, the shape, and the size of conductive materials between sender and receiver shows that the system can distinguish between the receiver coil and different metallic objects such as iron, coins, and copper.

KW - Battery-free

KW - Coil matrix

KW - Inductive power transfer (IPT)

KW - IoT

KW - Multi-coil system

KW - Multi-input multi-output (MIMO)

KW - Multi-input single output (MISO)

KW - Passive peak voltage detector

KW - Wireless power transfer (WPT)

KW - Wireless sensor node (WSN)

KW - Ingenieurwissenschaften

UR - http://www.scopus.com/inward/record.url?scp=85133967243&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/586022d6-4b1b-35c8-a93d-f6f67d31e635/

U2 - 10.1515/teme-2021-0113

DO - 10.1515/teme-2021-0113

M3 - Zeitschriftenaufsätze

AN - SCOPUS:85133967243

VL - 89

SP - 612

EP - 624

JO - Technisches Messen

JF - Technisches Messen

SN - 0171-8096

IS - 9

ER -