Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles
One of the major challenges associated with e-textiles is the connection between flexible fabric-integrated wires and rigid electronics. This work aims to increase the user experience and mechanical reliability of these connections by foregoing conventional galvanic connections in favor of inductive...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/6/2943 |
| _version_ | 1827747743308709888 |
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| author | Pim Lindeman Annemarijn Steijlen Jeroen Bastemeijer Andre Bossche |
| author_facet | Pim Lindeman Annemarijn Steijlen Jeroen Bastemeijer Andre Bossche |
| author_sort | Pim Lindeman |
| collection | DOAJ |
| description | One of the major challenges associated with e-textiles is the connection between flexible fabric-integrated wires and rigid electronics. This work aims to increase the user experience and mechanical reliability of these connections by foregoing conventional galvanic connections in favor of inductively coupled coils. The new design allows for some movement between the electronics and the wires, and it relieves the mechanical strain. Two pairs of coupled coils continuously transmit power and bidirectional data across two air gaps of a few millimeters. A detailed analysis of this double inductive link and associated compensation network is presented, and the sensitivity of the network to changing conditions is explored. A proof of principle is built that demonstrates the system’s ability to self-tune based on the current–voltage phase relation. A demonstration combining 8.5 kbit/s of data transfer with a power output of 62 mW DC is presented, and the hardware is shown to support data rates of up to 240 kbit/s. This is a significant improvement of the performance of previously presented designs. |
| first_indexed | 2024-03-11T05:56:34Z |
| format | Article |
| id | doaj.art-c168d72186c84e3b8309072ff9ca6fbc |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T05:56:34Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c168d72186c84e3b8309072ff9ca6fbc2023-11-17T13:43:44ZengMDPI AGSensors1424-82202023-03-01236294310.3390/s23062943Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-TextilesPim Lindeman0Annemarijn Steijlen1Jeroen Bastemeijer2Andre Bossche3Faculty of Electronic Engineering, Mathematics and Computer Science, Delft University of Technology, 2628 CD Delft, The NetherlandsFaculty of Electronic Engineering, Mathematics and Computer Science, Delft University of Technology, 2628 CD Delft, The NetherlandsFaculty of Electronic Engineering, Mathematics and Computer Science, Delft University of Technology, 2628 CD Delft, The NetherlandsFaculty of Electronic Engineering, Mathematics and Computer Science, Delft University of Technology, 2628 CD Delft, The NetherlandsOne of the major challenges associated with e-textiles is the connection between flexible fabric-integrated wires and rigid electronics. This work aims to increase the user experience and mechanical reliability of these connections by foregoing conventional galvanic connections in favor of inductively coupled coils. The new design allows for some movement between the electronics and the wires, and it relieves the mechanical strain. Two pairs of coupled coils continuously transmit power and bidirectional data across two air gaps of a few millimeters. A detailed analysis of this double inductive link and associated compensation network is presented, and the sensitivity of the network to changing conditions is explored. A proof of principle is built that demonstrates the system’s ability to self-tune based on the current–voltage phase relation. A demonstration combining 8.5 kbit/s of data transfer with a power output of 62 mW DC is presented, and the hardware is shown to support data rates of up to 240 kbit/s. This is a significant improvement of the performance of previously presented designs.https://www.mdpi.com/1424-8220/23/6/2943compensation networksdata transmissione-textilesinductive couplingresonant circuitwireless sensor networks |
| spellingShingle | Pim Lindeman Annemarijn Steijlen Jeroen Bastemeijer Andre Bossche Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles Sensors compensation networks data transmission e-textiles inductive coupling resonant circuit wireless sensor networks |
| title | Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles |
| title_full | Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles |
| title_fullStr | Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles |
| title_full_unstemmed | Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles |
| title_short | Adaptive Impedance Matching Network for Contactless Power and Data Transfer in E-Textiles |
| title_sort | adaptive impedance matching network for contactless power and data transfer in e textiles |
| topic | compensation networks data transmission e-textiles inductive coupling resonant circuit wireless sensor networks |
| url | https://www.mdpi.com/1424-8220/23/6/2943 |
| work_keys_str_mv | AT pimlindeman adaptiveimpedancematchingnetworkforcontactlesspoweranddatatransferinetextiles AT annemarijnsteijlen adaptiveimpedancematchingnetworkforcontactlesspoweranddatatransferinetextiles AT jeroenbastemeijer adaptiveimpedancematchingnetworkforcontactlesspoweranddatatransferinetextiles AT andrebossche adaptiveimpedancematchingnetworkforcontactlesspoweranddatatransferinetextiles |