Davide Aguglia
(CERN),
Xavier Abel Bonnin
(CERN)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
The energy upgrade of existing particle accelerators, and requests for more cost-effective solutions in new large scale facilities, leads to the need of more and more compact high voltage power converters for power amplifiers. Combining this with the increasing needs in terms of reliability, modularity and redundancy (availability of large accelerators), results in challenging power converter...
Claus Strowitzki
(Mlase AG)
07/07/2016, 13:30
Solid State Power Modulators, Components, and Systems
Poster Presentation
An IGBT switch together with a blocking diode is normally used for the primary switch in a magnetic pulse compression circuit. In the presented paper a full bridge configuration as a primary switch is proposed. The configuration shows advantages especially for high repletion rate systems. It shows also higher efficacies because no special network is necessary for the reflected energy. The...
Tony Fowler
(CERN)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
The CLIC study is exploring the scheme for an electron-positron collider with high luminosity and a nominal centre-of-mass energy of 3 TeV. The CLIC pre-damping rings and damping rings will produce, through synchrotron radiation, ultra-low emittance beam with high bunch charge, necessary for the luminosity performance of the collider. To limit the beam emittance blow-up due to oscillations,...
Mr
Michael Kempkes
(Diversified Technologies, Inc.)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
Diversified Technologies, Inc. (DTI), in partnership with SigmaPhi Electronics (SPE) has built three long pulse solid-state klystron transmitters to meet spallation source requirements. Two of the three units are installed at CEA Saclay and the National Institute of Nuclear and Particle Physics (IN2P3), where they will be used as test stands for the European Spallation Source (ESS).
The...
Hong-Je Ryoo
(Chung-Ang University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
This paper describes the design of a high performance solid-state pulsed power modulator for long pulse applications. Output specifications of the proposed modulator are as follows: variable output pulse voltage, 1-40 kV; width, 1-300 us; pulse repetition rate, 1-200 pps; and average output power, 50 kW. Based on the structure of solid-state Marx modulator, the proposed modulator mainly...
129.
Design of High-voltage Nanosecond Fast Repetitive Pulse Generator Based on Avalanche Transistor
07/07/2016, 13:30
Repetitive Pulsed Power Systems, Repetitive Pulsed Magnetics, Accelerators, Beams, High Power Microwaves, and High Power Pulse Antennas
Poster Presentation
A high voltage, nanosecond pulse generator is designed to get the high resolution and accurate results in Pulse electro acoustic (PEA) equipment to measure space charge test. There’s more and more requirement for fast rise time pulse generator especially with high repetition frequency and high voltage. Several technologies are being used for generation of nanosecond pulses such as spark gas,...
Dr
Hoon Heo
(Pohang Accelerator Laboratory), Dr
SangHoon Nam
(Pohang Accelerator Laboratory),
SungChul Kim
(Pohang Accelerator Laboratory)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
This paper proposes a compact high-voltage pulse power supply consist of interleaved capacitor charging power supply (CCPS) with a series resonant converter (SRC) to drive cathode of Magnetron Injection Gun (MIG). Requirement specifications are -40 kV, -7A(280 kW) and few seconds continuous output with less than 1ms the rising and falling time and lower than ± 1% the ripple stability of output...
Martin Sack
(Karlsruhe Institute of Technology)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
For a device for treatment of food by pulsed electric fields a modular semiconductor-based Marx generator has been designed. Each stage comprises a parallel configuration of inexpensive IGBT switches forming together the pulse switch. A control signal allows synchonized switching of the stages. It is distributed to the stages inductively via ferrite core transformers. Separate gate drivers...
Emily Hirsch
(Texas Tech University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
Silicon Carbide (SiC) is a leading wide bandgap semiconductor for increasing the power density of high power applications. This paper overviews the long term reliability and safe operating area of 15 kV SiC PiN diodes during pulsed current conditions. An automated system is used to stress these devices with ultra-high current pulses and monitor degradation with in-system characterization. The...
Ms
SHUYUN TIAN
(HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
Pulse power thyristor has been widely used in pulsed power system for its numerous advantages, such as good controllability, large through-flow capacity and high repetition frequency. To study the device’s electrical characteristics and the circuit transient process, a marco model of pulse power thyristor applying to MATLAB software platform was established in this paper,based on research of...
Prof.
Kefu Liu
(Fudan University)
07/07/2016, 13:30
Repetitive Pulsed Power Systems, Repetitive Pulsed Magnetics, Accelerators, Beams, High Power Microwaves, and High Power Pulse Antennas
Poster Presentation
All-solid-state Marx generator is mature approach to obtain repetitive high voltage pulses and many topologies have been proposed. However, due to limited rated voltage of semiconductor switches, a large amount of switches is required. Too much switches, in addition with high repetition rate, lead to severe stray parameters and heat dissipation. It increases the difficulty of structure design...
Dr
Bejoy Pushpakaran
(Texas Tech University), Dr
Stephen Bayne
(Texas Tech University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
Electro-thermal analysis of SiC power semiconductor devices is crucial for its suitability in high power pulsed application. The relative stability of the threshold voltage and the absence of surface conduction in a Trenched and Implanted Vertical JFET (TIV-VJFET) structure gives it an inherent advantage over SiC MOSFETs especially in high current density pulsed applications like high voltage...
James Schrock
(Texas Tech University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
Silicon carbide Super Gate Turn-OFF (SGTO) thyristors are an advanced technology for increasing the power density of high voltage pulsed power or power electronics. However, the transient characteristics and failure modes of these devices have to be further understood. This paper presents the Silvaco Atlas simulation of a 15 kV SiC SGTO thyristor during extreme pulsed overcurrent conditions....
Max Collins
(Lund University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
The European Spallation Source (Lund, Sweden) is an under construction multi-disciplinary research facility to be based around a Linear Particle Accelerator which is to provide 2.86 ms long proton pulses at 2 GeV at a pulse repetition rate of 14 Hz, representing an average beam power of 5 MW.
To accommodate the requirements of the proton linac, a large number of klystrons driven by power...
Dr
tonghai ding
(Huazhong university of science and technology)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
In this paper, a new explosive DC breaker switch, which the electromagnetic forming (EMF) technology is used to burst aluminum cylinder in order to cut off the high DC current, is designed. The switch is upgraded from the explosive DC breaker switch of the Laboratoire National des Champs Magnétiques Intenses in France which a closed aluminum cylinder full of water is destructed by high...
Mr
Haozheng Shi
(Fudan University), Prof.
Kefu Liu
(Fudan University),
jian qiu
(Fudan University)
07/07/2016, 13:30
Solid State Power Modulators, Components, Switches, and Systems
Poster Presentation
The output current of a Marx generator will be affected by the value of different loads even though the output voltage has been fixed. A special kind of current pulse generator is needed in experiments and industrial applications, which can generate a current pulse of constant amplitude regardless of the impact that the resistive load fluctuates in a certain range. A novel current pulse...
