Compact, Intelligent, Digitally Controlled IGBT Gate Drivers for a PEBB-Based ILC Marx Modulator [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy. Office of Science, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 3 pages : digital, PDF file
Additional Creators:: SLAC National Accelerator Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

SLAC National Accelerator Laboratory has built and is currently operating a first generation prototype Marx klystron modulator to meet ILC specifications. Under development is a second generation prototype, aimed at improving overall performance, serviceability, and manufacturability as compared to its predecessor. It is designed around 32 cells, each operating at 3.75 kV and correcting for its own capacitor droop. Due to the uniqueness of this application, high voltage gate drivers needed to be developed for the main 6.5 kV and droop correction 1.7 kV IGBTs. The gate driver provides vital functions such as protection of the IGBT from over-voltage and over-current, detection of gate-emitter open and short circuit conditions, and monitoring of IGBT degradation (based on collector-emitter saturation voltage). Gate drive control, diagnostic processing capabilities, and communication are digitally implemented using an FPGA. This paper details the design of the gate driver circuitry, component selection, and construction layout. In addition, experimental results are included to illustrate the effectiveness of the protection circuit.

Report Numbers:

E 1.99:slac-pub-14109
slac-pub-14109

Subject(s):

Particle Accelerators

Other Subject(s):

Note:

Published through SciTech Connect.
06/07/2010.
"slac-pub-14109"
Conf.Proc.C100523:wepd100,2010
Contributed to 1st International Particle Accelerator Conference: IPAC'10, Kyoto, Japan, 23-28 May 2010.
Burkhart, C.; Nguyen, M.N.; Macken, K.; Olsen, J.J.

Funding Information:

AC02-76SF00515

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