Abstract-A new high-current, low-rise-time, and high-precision pulse generator is presented. The topology is based on the use of different stages, each one specific for a particular operation range in terms of power and switching frequency. This approach allows to accomplish current, voltage, and precision requirements with standard semiconductors. Moreover, the proposed topology provides an independent and flexible adjustment of the pulse parameters (rise and fall times, flat-top duration, pulse amplitude, etc.). Experimental results are provided to validate the control of the proposed topology.

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High current pulse transformers are widely used in particle accelerators for feeding pulsed magnets. Usually they need to be installed in very confined spaces, thus requiring compact design solutions. Several magnetic bias solutions are explored with the objective of reducing the core volume and total cost of the converter-transformer system. A concrete example is illustrated via the optimal design of two variants of the same pulse transformer, one with an air-gap and the other without air-gap but with an active magnetic reset. Results show that several solutions exist in order to optimize the volume of pulse transformers; however, this is always done at the expense of a more complex power converter topology or increased magnet volume. AbstractHigh current pulse transformers are widely used in particle accelerators for feeding pulsed magnets. Usually they need to be installed in very confined spaces, thus requiring compact design solutions. Several magnetic bias solutions are explored with the objective of reducing the core volume and total cost of the converter-transformer system. A concrete example is illustrated via the optimal design of two variants of the same pulse transformer, one with an air-gap and the other without air-gap but with an active magnetic reset. Results show that several solutions exist in order to optimize the volume of pulse transformers; however, this is always done at the expense of a more complex power converter topology or increased magnet volume.

At CERN, fast pulsed power converters are used to supply trapezoidal current in different magnet loads. These converters perform output current regulation by using a high power IGBT module in its ohmic region. This paper presents a new strategy for pulsed current control applications using a specifically designed IGBT driver. AbstractAt CERN, fast pulsed power converters are used to supply trapezoidal current in different magnet loads. These converters perform output current regulation by using a high power IGBT module in its ohmic region. This paper presents a new strategy for pulsed current control applications using a specifically designed IGBT driver.

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