INVESTIGATION OF AMPLITUDE-TEMPORAL CHARACTERISTICS OF A HIGH-VOLTAGE RESISTIVE VOLTAGE DIVIDER

Abstract

Purpose. Determination of the possibility of using the developed autonomous voltage divider for measuring high-voltage pulses with sharpened fronts (down to 1 ns). Methodology. We use the technique to determine the division ratio of the divider using a calibrated oscillator and oscilloscope. To determine the rise time of the transition characteristic of the divider, we use an experimental technique based on a high-voltage pulse generator with a steep front and computer simulation using circuit program Micro-Cap. Results. Oscillograms of high-voltage nanosecond pulses with subnanosecond fronts are experimentally obtained using an autonomous resistive voltage divider. A computer simulation of the operation of the created divider in various modes is carried out. Originality. We have shown that an autonomous shielded resistive high-voltage voltage divider can have a rise time less than 1 ns. The values of the parasitic parameters of the divider, which lead to a distortion of the sharpened pulse front with a rise time of ≈0.1 ns, are established. Practical value. The divider can be used to measure the characteristics of high-voltage pulses with a steep front (up to 1 ns as the lower limit).

Keywords

• voltage divider
• high-voltage pulse generator
• computer simulation
• electrical circuit
• rise time
• transient response
• pulse front