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Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications

This paper reports high-temperature optocouplers for signal galvanic isolation. Low temperature co-fired ceramic (LTCC) technology was used in the design and fabrication of the high-temperature optocoupler package. The optimal coupling behaviors, driving capabilities and response speed of the optoco...

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Autores principales: Lai, Pengyu, Gonzalez, David, Madhusoodhanan, Syam, Sabbar, Abbas, Ahmed, Salahaldein, Dong, Binzhong, Wang, Jiangbo, Mantooth, H. Alan, Yu, Shui-Qing, Chen, Zhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9270388/
https://www.ncbi.nlm.nih.gov/pubmed/35804033
http://dx.doi.org/10.1038/s41598-022-15631-7
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author Lai, Pengyu
Gonzalez, David
Madhusoodhanan, Syam
Sabbar, Abbas
Ahmed, Salahaldein
Dong, Binzhong
Wang, Jiangbo
Mantooth, H. Alan
Yu, Shui-Qing
Chen, Zhong
author_facet Lai, Pengyu
Gonzalez, David
Madhusoodhanan, Syam
Sabbar, Abbas
Ahmed, Salahaldein
Dong, Binzhong
Wang, Jiangbo
Mantooth, H. Alan
Yu, Shui-Qing
Chen, Zhong
author_sort Lai, Pengyu
collection PubMed
description This paper reports high-temperature optocouplers for signal galvanic isolation. Low temperature co-fired ceramic (LTCC) technology was used in the design and fabrication of the high-temperature optocoupler package. The optimal coupling behaviors, driving capabilities and response speed of the optocouplers were concentrated and investigated in this paper. Emitters and detectors with different emission and spectral wavelengths were studied to achieve optimal coupling behaviors. Relatively high coupling efficiency is achieved with emitters and detectors of emission and spectral wavelength in the red spectrum (i.e., 620–750 nm), leading to higher current transfer ratios (CTR). To further enhance the electrical performance, optocouplers with multiple detectors in parallel were designed and fabricated. CTR, leakage current and response speed (i.e., propagation delay, rise time and fall time) of the optocouplers were characterized over a range of temperatures from 25 to 250 °C. The CTR degrades at high temperatures, while the leakage current and response speed show little degradation with varying temperatures. Furthermore, the behaviors of the optocouplers with varying temperatures are modeled and analyzed.
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spelling pubmed-92703882022-07-10 Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications Lai, Pengyu Gonzalez, David Madhusoodhanan, Syam Sabbar, Abbas Ahmed, Salahaldein Dong, Binzhong Wang, Jiangbo Mantooth, H. Alan Yu, Shui-Qing Chen, Zhong Sci Rep Article This paper reports high-temperature optocouplers for signal galvanic isolation. Low temperature co-fired ceramic (LTCC) technology was used in the design and fabrication of the high-temperature optocoupler package. The optimal coupling behaviors, driving capabilities and response speed of the optocouplers were concentrated and investigated in this paper. Emitters and detectors with different emission and spectral wavelengths were studied to achieve optimal coupling behaviors. Relatively high coupling efficiency is achieved with emitters and detectors of emission and spectral wavelength in the red spectrum (i.e., 620–750 nm), leading to higher current transfer ratios (CTR). To further enhance the electrical performance, optocouplers with multiple detectors in parallel were designed and fabricated. CTR, leakage current and response speed (i.e., propagation delay, rise time and fall time) of the optocouplers were characterized over a range of temperatures from 25 to 250 °C. The CTR degrades at high temperatures, while the leakage current and response speed show little degradation with varying temperatures. Furthermore, the behaviors of the optocouplers with varying temperatures are modeled and analyzed. Nature Publishing Group UK 2022-07-08 /pmc/articles/PMC9270388/ /pubmed/35804033 http://dx.doi.org/10.1038/s41598-022-15631-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lai, Pengyu
Gonzalez, David
Madhusoodhanan, Syam
Sabbar, Abbas
Ahmed, Salahaldein
Dong, Binzhong
Wang, Jiangbo
Mantooth, H. Alan
Yu, Shui-Qing
Chen, Zhong
Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title_full Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title_fullStr Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title_full_unstemmed Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title_short Development of LTCC-packaged optocouplers as optical galvanic isolation for high-temperature applications
title_sort development of ltcc-packaged optocouplers as optical galvanic isolation for high-temperature applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9270388/
https://www.ncbi.nlm.nih.gov/pubmed/35804033
http://dx.doi.org/10.1038/s41598-022-15631-7
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