770 / 2022-03-31 21:40:15

High Voltage Nanosecond Pulse Generator based on Inductive Energy Storage With Adjustable Pulse Width

Inductive Energy Storage,Pulse Forming Line,Repetitive Nanosecond Pulse,High Voltage Technique

High-voltage square wave short pulse is vital for emerging civil fields such as: atmospheric pressure low-temperature plasma, pulsed electric field treatment, power equipment detection. The inductive energy storage pulse forming line is an effective solution to realize the output of high voltage square wave short pulse. However, the existing technology is difficult to coordinate the conflict between the forming linear space fixed and the adjustable pulse width. In order to solve the above problems, this paper proposes a new type multi-switch inductor energy storage pulse generator topology. Firstly, its circuit structure and working principle are introduced in detail, then the pulse width modulation method is analyzed based on wave process analysis and multi-switch sequential logic control theory, and finally an experimental platform is built to verify the feasibility of the new topology. The experimental results show that the proposed pulse generator can output square wave short pulses with a rise time of 4 ns, an adjustable pulse width of 8-20 ns, a repetition frequency of 200 kHz, and a voltage amplitude of 5 kV.