scholarly journals Investigation on the Breakdown Characteristics of Different Types of Lightning Rods

2018 ◽  
Vol 17 (2) ◽  
pp. 1-5
Author(s):  
Noor Azlinda Ahmad ◽  
Rosniza Zainal ◽  
Zuraimy Adzis
Keyword(s):  
Breakdown Voltage ◽  
High Voltage ◽  
Horizontal Distance ◽  
Different Types ◽  
Series Of Experiments ◽  
Voltage Breakdown

This paper investigates the voltage breakdown characteristics of three types of lightning rods - blunt, sharp and flat. The objectives of this study are to determine the voltage breakdown characteristics of various types of lightning rods and to obtain the striking distance of each rod. A series of experiments were conducted in the high voltage laboratory consisting of individual testing rod, competitive testing rod and also horizontal distance changing. All three types of rods have been tested in each experiment in order to obtain a comprehensive result. The blunt rod has been proven as the best strike receptor in comparison to sharp and flat rod. This is because breakdown voltage for blunt rod is much lower (199 kV) than that of flat and sharp rod. Therefore, replacement of widely used sharp rod with the blunt one should be considered in order to provide better protection for buildings from lightning activities. 

scholarly journals Determination of dV/dt and dI/dt characteristics for high voltage 4H-SiC Schottky diodes with different types of metal-polymeric packages

2020 ◽  
Vol 1679 ◽  
pp. 022045
Author(s):  
S B Rybalka ◽  
E A Kulchenkov ◽  
A A Demidov ◽  
N A Zhemoedov ◽  
A Yu Drakin ◽  
...  
Keyword(s):  
High Voltage ◽  
Schottky Diodes ◽  
Different Types

scholarly journals dV/dt testing of high voltage 4H-SiC Schottky diodes with different types of metal-polymeric packages

2020 ◽  
Vol 1695 ◽  
pp. 012160
Author(s):  
D A Knyginin ◽  
S B Rybalka ◽  
E A Kulchenkov ◽  
A A Demidov ◽  
N A Zhemоedоv ◽  
...  
Keyword(s):  
High Voltage ◽  
Schottky Diodes ◽  
Different Types

On the Breakdown Voltage Temperature Dependence of High-Voltage Power Diode Passivated with Diamond-Like Carbon

2021 ◽  
Author(s):  
Luigi Balestra ◽  
Susanna Reggiani ◽  
Antonio Gnudi ◽  
Elena Gnani ◽  
Jagoda Dobrzynska ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Breakdown Voltage ◽  
High Voltage ◽  
Diamond Like Carbon ◽  
Power Diode

scholarly journals Design of a Low on Resistance High Voltage (120V) Novel 3D NLDMOS with Side Isolation Based on 0.35um BCD Process Technology

2018 ◽  
Vol 201 ◽  
pp. 02004
Author(s):  
Shao-Ming Yang ◽  
Gene Sheu ◽  
Tzu Chieh Lee ◽  
Ting Yao Chien ◽  
Chieh Chih Wu ◽  
...  
Keyword(s):  
Breakdown Voltage ◽  
High Voltage ◽  
High Performance ◽  
Power Device ◽  
Simulation Tool ◽  
Process Technology ◽  
Surface Field ◽  
Kirk Effect ◽  
Tcad Simulation ◽  
Reduced Surface

High performance power device is necessary for BCD power device. In this paper, we used 3D Synopsis TCAD simulation tool Sentaurus to develop 120V device and successfully simulated. We implemented in a conventional 0.35um BCDMOS process to present of a novel high side 120V LDMOS have reduced surface field (RESURF) and Liner p-top structure with side isolation technology. The device has been research to achieve a benchmark specific on-resistance of 189 mΩ-mm2 while maintaining horizontal breakdown voltage and vertical isolation voltage both to target breakdown voltage of 120V. In ESOA, we also proposed a better performance of both device without kirk effect.

High voltage breakdown (1.8 kV) of hydrogenated black diamond field effect transistor

2016 ◽  
Vol 109 (20) ◽  
pp. 203504 ◽  
Author(s):  
M. Syamsul ◽  
Y. Kitabayashi ◽  
D. Matsumura ◽  
T. Saito ◽  
Y. Shintani ◽  
...  
Keyword(s):  
High Voltage ◽  
Field Effect ◽  
Field Effect Transistor ◽  
High Voltage Breakdown ◽  
Effect Transistor ◽  
Voltage Breakdown

scholarly journals B-1 cell: the precursor of a novel mononuclear phagocyte with immuno-regulatory properties

2009 ◽  
Vol 81 (3) ◽  
pp. 489-496 ◽  
Author(s):  
José Daniel Lopes ◽  
Mario Mariano
Keyword(s):  
Mammalian Cells ◽  
Giant Cells ◽  
Mononuclear Phagocyte ◽  
Different Types ◽  
Series Of Experiments ◽  
B1 Cells ◽  
Regulatory Properties

Characterization of the origin, properties, functions and fate of cells is a fundamental task for the understanding of physiological and pathological phenomena. Despite the bulk of knowledge concerning the diverse characteristics of mammalian cells, some of them, such as B-1 cells, are still poorly understood. Here we report the results obtained in our laboratory on these cells in the last 10 years. After showing that B-1 cells could be cultured and amplified in vitro, a series of experiments were performed with these cells. They showed that B1 cells reside mostly in the peritoneal and pleural cavities, migrate to distant inflammatory foci, coalesce to form giant cells and participate in granuloma formation, both in vitro and in vivo. They are also able to present antigens to immunologically responsive cells and are endowed with regulatory properties. Further, we have also shown that these cells facilitate different types of infection as well as tumor growth and spreading. These data are presently reviewed pointing to a pivotal role that these cells may play in innate and acquired immunity.

Voltage Breakdown and High-Voltage Design

2017 ◽  
pp. 399-445
Author(s):  
Robert M. Del Vecchio ◽  
Bertrand Poulin ◽  
Pierre T. Feghali ◽  
Dilipkumar M. Shah ◽  
Rajendra Ahuja
Keyword(s):  
High Voltage ◽  
Voltage Breakdown
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