The high-current delivered by a dedicated power supply is the condicio sine qua non to obtain the strong magnetic field produced by superconducting magnets. The end goal of such power supply is to control the current, very precisely, across this distinctiv ...
To improve the performances of the present European Organization for Nuclear Research (CERN) Large Hadron Collider (LHC), a new family of power supplies for Superconducting Magnets (SCM) is being designed to enhance the operating cycle and recover magnetic ...
The transient and static behavior of an insulated gate bipolar transistor (IGBT) are analyzed through finite elements simulations and physically based equations. The standard model using a bipolar transistor driven by a MOSFET is abandoned for three partia ...
The IGBT transistor, associating the conduction advantages of the bipolar transistor and the switching advantages of the MOSFET transistor, is widely used in medium and high power applications with an operating voltage of 1.2kV to 4.5kV. New topologies, re ...
During the turn-on process insulated gate bipolar transistors (IGBTs) traverse a quasi-saturation region from the off.state to the on-state (saturation). The additional voltage drop due to the quasi.saturation of the junction hardly depends on the DC-link ...
During the turn-on process insulated gate bipolar transistors (IGBTs) traverse a quasi-saturation region from the off-state to the on-state (saturation). The additional voltage drop due to the quasi-saturation of the junction hardly depends on the DC-link ...
The paper presents an active sharing device, for equalizing the voltages across a series connection of supercapacitors. This ensures an optimal value for the stored energy. Based on a buck-boost topology, this device is designed and controlled to propose a ...
An energy storage system based on battery and supercapacitors is presented. It allows bigger amount of intantaneous power. The properties of the proposed system are oriented in high efficiency, in a special topology with parallel channels. The paper presen ...
