Development of high-voltage pulse generator with variable amplitude and duration.

Area of Science:

• Electrical Engineering
• Pulsed Power Systems

Background:

• High voltage pulse generation is crucial for various scientific and industrial applications.
• Existing pulse generators often lack flexibility in amplitude and duration control.
• The need for precise and variable pulse parameters necessitates innovative design approaches.

Purpose of the Study:

• To design and develop a high voltage pulse generator with independently variable amplitude and duration.
• To implement a novel technique for controlling pulse width using MOSFET switching.
• To achieve a wide range of output parameters for versatile applications.

Main Methods:

• A high voltage pulse generator was designed using a Metal Oxide Semiconductor Field Effect Transistor (MOSFET) based switch.
• Variable pulse duration was achieved by modulating the turn-off delay time of the MOSFET switch via external gate resistance.
• Variable pulse amplitude was controlled by adjusting the biasing supply of the high voltage switch.
• The MOSFET switch stack was rated for 3 kV with a switching time of 7 ns.

Main Results:

• The developed pulse generator successfully achieved variable pulse amplitudes from 100 V to 3000 V.
• Variable pulse durations ranging from 100 μs to 2000 μs were realized.
• The novel technique for duration control proved effective and simple to implement.
• The high voltage switch demonstrated reliable performance within the specified ratings.

Conclusions:

• A versatile high voltage pulse generator with independently controllable amplitude and duration has been successfully developed.
• The MOSFET-based switching technique offers a practical and efficient method for pulse parameter control.
• This generator provides a valuable tool for research and applications requiring tailored high voltage pulses.