2000 · 18 citations · 0 references
EngineeringElectrical EngineeringElectronic MaterialsMicroelectronicsSemiconductor DevicesAccelerator PhysicsComplementary Metal-oxide-semiconductor TechnologyGate Drive CircuitsHigh-frequency Power ConversionHigh-frequency Semiconductor DevicesWide-bandgap Semiconductor DevicesGate Driver Design
A second and third modulator are being built at Fermilab to drive the klystrons for the TESLA Test Facility. These modulators are similar to one previously built at Fermilab. However, there are two differences. First, the new modulators are designed for a 10 MW multi-beam klystron under design by Thomson. Second, IGBT switches are being used in place of GTOs. The development of the series IGBT switch to replace the GTO switch is the most significant challenge. IGBTs have the advantages of lower gate drive and shorter turn off delay time.