نتایج جستجو برای: insulated gate bipolar transistor

تعداد نتایج: 95915  

2014
Debabrata Roy Pradip Kumar Sadhu Nitai Pal

This paper talks about the analysis of a high frequency series resonant inverter for using domestic and industrial induction heating purpose. It is a technique i.e. used for heat conductive materials hard and soft metals. Series Resonant inverters which operate at high frequency preferable for induction heating which normally works in 5-55KHz. High frequency series resonant inverters which is m...

2011

A low-side switch is a MOSFET or an IGBT that is connected to the ground-referenced and is not floating. In a boost converter, the source terminal of the MOSFET is connected to the circuit ground, which is referred to a low-side MOSFET. To switch an N-channel MOSFET of a boost converter on, the V should be in the order of 10 to 20V. Since the source terminal is grounded, this implies that the g...

2012
Andy C. Kiser

INTRODUCTION The Estech COBRA FusionTM Ablation System was developed to provide superior epicardial ablation performance on the beating heart. Current ablation devices have significant limitations that prevent effective use in creating full-thickness (transmural) lesions. Bipolar ablation clamps are a widely accepted means to create transmural lesions of the left and right pulmonary veins (PVs)...

2016
Naveed Yaqoob Muhammad Aslam Inayatur Rehman Mohammed M. Khalaf

The notion of bipolar fuzzy set was initiated by Lee (2000) as a generalization of the notion fuzzy sets and intuitionistic fuzzy sets, which have drawn attention of many mathematicians and computer scientists. In this paper, we initiate a study on bipolar ( ,   )-fuzzy sets in -semihypergroups. By using the concept of bipolar ( ,   )-fuzzy sets (Yaqoob and Ansari, 2013), we introduce the ...

2017
Muhammad Akram

In this research study, we introduce the concept of bipolar single-valued neutrosophic graph structures. We discuss certain notions of bipolar single-valued neutrosophic graph structures with examples. We present some methods of construction of bipolar single-valued neutrosophic graph structures. We also investigate some of their prosperities. Key-words: Graph structure, Bipolar single-valued n...

Journal: :Microelectronics Reliability 2007
A. Benmansour Stephane Azzopardi J. C. Martin Eric Woirgard

Two extreme configurations under short circuit conditions leading to the punch through Trench IGBT failure under the effect of the temperature and the gate resistance have been studied. By analyzing internal physical parameters, it was highlighted that the elevation of the temperature causes an acceleration of the failure which is due to a thermal runaway phenomenon, whereas the influence of th...

2008
aMy M. NeereN Amy M. Neeren

the present study examined whether negative parenting characteristics are associated with offspring’s bipolar spectrum diagnoses. individuals with bipolar spectrum disorders and matched normal controls completed measures of the parenting behaviors their parents exhibited while the individuals were growing up. lower levels of acceptance/warmth from mothers and higher levels of negative psycholog...

1999
siegfried. ramminger gerhard. mitic

High voltage and high current power modules are key components for traction applications. In the future, railway locomotives, tramways and elevators will be equipped with Insulated Gate Bipolar Transistor (IGBT) modules. In this field of application high reliability is of decisive importance, especially for aluminum bond wires with diameters up to 500 μm, connecting the silicon device with the ...

2012
Satoru Kaneko Takeshi Ito Kensuke Akiyama Manabu Yasui Chihiro Kato Satomi Tanaka Yasuo Hirabayashi Takeshi Ozawa Akira Matsuno Takashi Nire Hiroshi Funakubo Mamoru Yoshimoto

As application of re-activation of backside on power device Insulated Gate Bipolar Transistor (IGBT), laser annealing was employed to irradiate amorphous silicon substrate, and resistivities were measured using four point probe measurement. For annealing the amorphous silicon two lasers were used at wavelength of visible green (532 nm) together with Infrared (793 nm). While the green laser effi...

2014
Umar Farooq Siddiqui Ajit Verma Shilpa Soni

Due to harmonics, sudden voltage dips and large fluctuating torque causes a great problem in the starting of large induction motor. Some times due to tripping of relay, equipment failure, surge, no load or overload motor voltage fluctuates resulting in the failure of motor starting. This paper discusses the solution of these problems by using soft starter technique. Soft starting of induction m...

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