期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 36, 期 8, 页码 8978-8987出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2021.3052943
关键词
Generators; Nanobioscience; Switches; Topology; Pulse generation; Modulation; Oscillators; Blumlein; high frequency; high voltage; multimode; nanosecond pulse generator
资金
- National Natural Science Foundation of China [51907011]
- Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology [6142605190105]
- Fundamental Research Funds for the Central Universities [2019CDCGDQ317]
This article introduces the use of a Blumlein-based LC underdamped oscillation boost circuit and Blumlein stack topology to achieve high voltage gain. By controlling the switching sequence, the voltage wave process can be adjusted to change the operating mode. This allows for multimode operation including positive polarity, negative polarity, bipolar, and pulse duration modulation at MHz repetition rates with high gain voltage.
The nanosecond short pulse generator, which operates continuously at MHz repetition rates, plays an important role in high-energy accelerators, pulsed laser modulation, electromagnetic biological effects, and other fields. Pulse-forming lines based on gas spark gap are the main means to generate high-voltage nanosecond short pulses; but due to electrode ablation, it is difficult to operate at MHz repetition rates. The topologies based on the fully controlled semiconductor device can output multimode nanosecond pulse. But it is limited by the gate driver ability and system stray loss, so it is difficult to directly generate flexible and adjustable nanosecond short pulse with MHz repetition rates. In order to overcome the above shortcomings, this article proposes the Blumlein-based LC underdamped oscillation boost circuit and the Blumlein stack topology to achieve high voltage gain. And, the voltage wave process can be adjusted by controlling the switching sequence to change operating mode. Finally, multimode operation such as positive polarity, negative polarity, bipolar and pulse duration modulation can be realized with MHz repetition rates and high gain voltage.
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