High-Voltage Generator of Microsecond Pulses

Abstract

The engineering design, calculations, and computer simulations for the high-voltage generator (HVG) intended for the production of microsecond output voltage pulses of rectangular form at a high repetition rate are presented. The original ideas are suggested for the high-voltage generator. The output pulse is produced by the discharge of several synchronized magnetic pulsed generator (MPG) lines. The application of the saturation chokes with increased linkage values in the several lines of the MPG last compression stage makes possible the delay in switching on to the winding of the high-voltage transformer (HVT). The superposition of the output pulses of several MPG lines enables the formation of the rectangular output pulse of required duration and amplitude at the load. In order to reduce the discharging inductance for getting a steep pulse front, to decrease the weight and dimensions and the possible cost, the HVT is designed according to the principle of linear induction accelerators induction system with multiple-turn windings. Application of magnetic elements allows one to achieve a high pulse repetition rate. Conducted simulation allowed us to determine the elements that limit output parameters, to correct their characteristics, and to adjust the HVG elements for obtaining the pulses of required characteristics: voltage, current, and duration. The proposed concept of the High-Voltage Generator makes possible the realization of up to 1 MV, 1-5 kA, 1 mus, 1 kHz pulse parameters. The quantity of pulses continuously produced at 1 kHz repetition rate is determined by the primary storage capacity, which depends on concrete requirements and can reach several thousands. Such parameters are unique and can be obtained at relatively low weight, size, and cost characteristics. The proper choice of parameters of the last MPG stage elements allows for creating output pulses of special forms: linearly increasing or linearly falling down. Such generators can be applied as modulators for high-power microwave devices of O-and M-types.