Parameter Unit

The presented report contains the description of high-voltage source with output voltage up to 60kV and output current up to 500 mA. The source consist of the converter with IGBT switches, working with a principle of pulse-width modulation on programmed from 15 to 25 kHz frequency, and the high voltage sectioned transformer with the rectifier and additional capacitive filter. The transformer is placed in oil tank with silicon oil. The additional capacitive filter provides low ripple and noise level in working range of output currents. The design of the high-voltage transformer provides preservation of working capacity at voltage up to 100kV. The stored in transformer and matching circuit energy is less than 15 J at maximum operating voltage 65kV. The efficiency of system is more than 80 % at the nominally output power 30kW. The controller of the source is developed with DSP and PLM, which allows optimizing operations of the source, optimizing short circuit protection and transient process for load variation. Transient process is less than 6kV in voltage and the transient process time is less than 5ms for full load variation from 0 to 500mA. For control of the source serial CAN-interface is used. The description of the source and the test results are presented. DESCRIPTION The presented source was designed for some different Budker institute of nuclear physics internal applications. That was reason for some specific terms like: fast time for rise voltage to 60 kV after high-voltage breakdown, strong reliability to high-voltage breakdown, breakdown energy less than 15 J for 60 kV operation, low voltage ripple for maximal power operation. The basic characteristics of high-voltage source are shown in table1. Table 1: Basic parameters of high-voltage source