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Wyświetlanie 1-5 z 5
Tytuł:
Extended Feedback Linearisation Control of Non-ideal DCDC Buck Converter in Continuous-conduction Mode
Autorzy:
Csizmadia, Miklos
Kuczmann, Miklos
Powiązania:
https://bibliotekanauki.pl/articles/2175943.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
DC-DC buck converter
feedback linearisation
inrush current
parasitics
Ackermann
Opis:
This paper presents an extended form of Feedback Linearisation Control (FBLC), which is tested in a non-ideal buck converter in Continuous-conduction Mode (CCM). The FBLC is often used in power electronics to control a non-linear system, due to its advantageous properties. The application of the error integrator shows better steady-state and transient properties, such as a decrease of inrush current. The linearised system has been controlled by the pole placement and the technique is illustrated through an example and simulated via Matlab. The results have been compared by using a classical PID controller, allowing the benefits of FBLC to be highlighted.
Źródło:
Power Electronics and Drives; 2022, 7, 42; 1--8
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of gate drive circuit effect in cascode GaN-based applications
Autorzy:
Tan, Q. Y.
Narayanan, E. M. S.
Powiązania:
https://bibliotekanauki.pl/articles/2173545.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cascode GaNFETs
parasitics
buck converter
gate drive design
kaskoda GaNFETs
przetwornica
pasożytnictwo
projekt napędu bramy
Opis:
This work evaluates the influence of gate drive circuitry to cascode GaN device’s switching waveforms. This is done by comparing three PCBs using three double-pulse-test (DPT) with different gate driving loop design. Among important parasitic elements, source-side inductance shows a significant impact to gate-source voltage waveform. A simulation model based on experimental measurement of the cascode GaNFET used in this work is modified by author. The simulation model is implemented in a synchronous buck converter topology and hereby to assess the impact of gate driving loop of cascode GaN device in both continuous conduction mode (CCM) and critical conduction mode (CRM). Apart from simulation, a synchronous buck converter prototype is presented for experimental evaluation, which shows a 99.15% efficiency at 5A under soft-switching operation (CRM) with a 59ns dead-time.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136742
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of gate drive circuit effect in cascode GaN-based applications
Autorzy:
Tan, Q. Y.
Narayanan, E. M. S.
Powiązania:
https://bibliotekanauki.pl/articles/2128152.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cascode GaNFETs
parasitics
buck converter
gate drive design
kaskoda GaNFETs
przetwornica
pasożytnictwo
projekt napędu bramy
Opis:
This work evaluates the influence of gate drive circuitry to cascode GaN device’s switching waveforms. This is done by comparing three PCBs using three double-pulse-test (DPT) with different gate driving loop design. Among important parasitic elements, source-side inductance shows a significant impact to gate-source voltage waveform. A simulation model based on experimental measurement of the cascode GaNFET used in this work is modified by author. The simulation model is implemented in a synchronous buck converter topology and hereby to assess the impact of gate driving loop of cascode GaN device in both continuous conduction mode (CCM) and critical conduction mode (CRM). Apart from simulation, a synchronous buck converter prototype is presented for experimental evaluation, which shows a 99.15% efficiency at 5A under soft-switching operation (CRM) with a 59ns dead-time.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136742, 1--7
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automated substrate resistance extraction in nanoscale VLSI by exploiting a geometry-based analytical model
Autorzy:
Bontzios, Y. I.
Dimopoulos, M. G.
Hatzopoulos, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/398110.pdf
Data publikacji:
2011
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
szum podłożowy
układ scalony
modelowanie geometryczne
pochodzenie oporu
modelowanie oporu
zasilanie pasożytnicze
substrate noise
integrated circuits
geometric modeling
resistance extraction
resistance modeling
parasitics
Opis:
In this work, a new automated method for determining the substrate resistance is presented. It exploits a geometric formulation of the current streamlines between coupled structures and builds an analytical model for the substrate resistance. Both simulation and measurement data are utilized in order to show the validity of the proposed scheme. The measurement data are obtained from a fabricated test chip. The results show that the proposed method succeeds in computing the substrate resistance while the average error falls within 5%.
Źródło:
International Journal of Microelectronics and Computer Science; 2011, 2, 3; 81-87
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical and simulation modeling of dual active bridge
Autorzy:
Barlik, Roman
Grzejszczak, Piotr
Koszel, Mikołaj
Powiązania:
https://bibliotekanauki.pl/articles/2173709.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
dual active bridge
small-signal analysis
averaged model
transfer function
parasitics
PI controller
podwójny mostek aktywny
analiza małosygnałowa
model uśredniony
funkcja przenoszenia
pasożyty
regulator PI
Opis:
The paper is a structured, in-depth analysis of dual active bridge modeling. In the research new, profound dual active bridge converter (DAB) circuit model is presented. Contrary to already described idealized models, all critical elements including numerous parasitic components were described. The novelty is the consideration of a threshold voltage of diodes and transistors in the converter equations. Furthermore, a lossy model of leakage inductance in an AC circuit is also included. Based on the circuit equations, a small-signal dual active bridge converter model is described. That led to developing control of the input and output transfer function of the dual active bridge converter model. The comparison of the idealized model, circuit simulation (PLECS), and an experimental model was conducted methodically and confirmed the high compatibility of the introduced mathematical model with the experimental one. Proposed transfer functions can be used when designing control of systems containing multiple converters accelerating the design process, and accurately reproducing the existing systems, which was also reported in the paper.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e142653
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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