Zobrazeno 1 - 10
of 479
pro vyhledávání: '"Florin Udrea"'
Autor:
Hyemin Kang, Florin Udrea
Publikováno v:
Power Electronic Devices and Components, Vol 4, Iss , Pp 100029- (2023)
In this paper, the origin of the gate oscillations with a stray capacitance in the load inductor is analyzed with a device/circuit mix-mode simulation. It is found that the gate ringing occurs when the superjunction device reaches its pinch-off poten
Externí odkaz:
https://doaj.org/article/fe4b5964b3f840b6a83c2ea671fc05cd
Autor:
Giorgia Longobardi, Loizos Efthymiou, John Findlay, Andrea Bricconi, Peter Comiskey, Martin Arnold, David Miller, Florin Udrea
Publikováno v:
Power Electronic Devices and Components, Vol 4, Iss , Pp 100028- (2023)
This work provides an overview of the current state of technology in the field of lateral GaN power devices and presents the characteristics of the main commercially available 650 V GaN power devices and ICs. A comparison is given, both in terms of k
Externí odkaz:
https://doaj.org/article/105ba24c17f1491bbbb13c9df8f11f98
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-6 (2022)
Abstract We present a miniaturised thermal acoustic gas sensor, fabricated using a CMOS microhotplate and MEMS microphone. The sensing mechanism is based on the detection of changes in the thermal acoustic conversion efficiency which is dependent on
Externí odkaz:
https://doaj.org/article/0d6f181a875b4e6fba1e31021d3e2386
Autor:
Daniel Popa, Richard Hopper, Syed Zeeshan Ali, Matthew Thomas Cole, Ye Fan, Vlad-Petru Veigang-Radulescu, Rohit Chikkaraddy, Jayakrupakar Nallala, Yuxin Xing, Jack Alexander-Webber, Stephan Hofmann, Andrea De Luca, Julian William Gardner, Florin Udrea
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract The gas sensor market is growing fast, driven by many socioeconomic and industrial factors. Mid-infrared (MIR) gas sensors offer excellent performance for an increasing number of sensing applications in healthcare, smart homes, and the autom
Externí odkaz:
https://doaj.org/article/41b2a110b97247ea971192b1793a1295
Publikováno v:
IEEE Journal of the Electron Devices Society, Vol 9, Pp 831-838 (2021)
For large scale testability of p-GaN HEMTs it is essential to investigate threshold voltage ( $\text{V}_{\mathrm{ th}}$ ) instability from the perspective of the measurement induced instability. In this paper the impact of accumulated gate bias stres
Externí odkaz:
https://doaj.org/article/0626343301d54f40849ce31edc300d8d
Publikováno v:
Sensors, Vol 23, Iss 2, p 681 (2023)
In recent years, there has been a growing desire to monitor and control harmful substances arising from industrial processes that impact upon our health and quality of life. This has led to a large market demand for gas sensors, which are commonly ba
Externí odkaz:
https://doaj.org/article/e33e95c9fcd64e7289ac0e7b4ab5cef3
Publikováno v:
Proceedings, Vol 56, Iss 1, p 3 (2020)
In this work, we present a novel thermal acoustic gas sensor, fabricated using a CMOS microhotplate and MEMS microphone. The sensing mechanism is based on the detection of changes in the thermal acoustic conversion efficiency which is dependent on th
Externí odkaz:
https://doaj.org/article/3d7b2d78e25748a59b9e536e5890b402
Publikováno v:
Proceedings, Vol 56, Iss 1, p 10 (2020)
Low-cost infrared (IR) thermal cameras are powering a rising market of industrial and consumer applications. Complementary metal-oxide-semiconductor (CMOS)-based thermopile arrays are proven thermal imagers that can be monolithically integrated into
Externí odkaz:
https://doaj.org/article/97c72403dba04c2e8afbea48d25c1f90
Autor:
Ying Dai, Syed Zeeshan Ali, Richard Hopper, Claudio Falco, Prakash Pandey, Chris Oxley, Daniel Popa, Florin Udrea
Publikováno v:
Sensors, Vol 20, Iss 9, p 2573 (2020)
We present a new experimental technique to characterise the crosstalk of a thermopile-based thermal imager, based on bi-directional electrical heating of thermopile elements. The new technique provides a significantly simpler and more reliable method
Externí odkaz:
https://doaj.org/article/006fe0e3989b4c74bdd020cd3485f735
Autor:
Alisa Stratulat, Bogdan-Catalin Serban, Andrea de Luca, Viorel Avramescu, Cornel Cobianu, Mihai Brezeanu, Octavian Buiu, Lucian Diamandescu, Marcel Feder, Syed Zeeshan Ali, Florin Udrea
Publikováno v:
Sensors, Vol 15, Iss 7, Pp 17495-17506 (2015)
The current paper reports on a sonochemical synthesis method for manufacturing nanostructured (typical grain size of 50 nm) SrTi0.6Fe0.4O2.8 (Sono-STFO40) powder. This powder is characterized using X ray-diffraction (XRD), Mössbauer spectroscopy and
Externí odkaz:
https://doaj.org/article/7327b36e11e343a88da7ea3ee0ee1ebf