Abstract
In this paper, a high-efficiency all solid-state nanosecond pulsed generator for dielectric barrier discharge (DBD) is designed, consisting of a Marx generator, Blumlein transmission lines and one magnetic switch (MS). Blumlein transmission lines are charged by Marx generator and discharge into the load after MS turns on. For comparisons, experiments were carried out with three loads including matched resistor, air gap and DBD load. Experimental results have been given. This generator is capable of providing pulses with voltage up to 20 kV and duration of 220 ns on the matched load of a 100 ohm resistor at the efficiency of 90.8%. With the air gap load, current presents bipolar square-wave attenuation oscillation with duration of 220 ns. Special emphasis is given to the DBD load. It is found that there are over ten discharges in 4 microseconds under a single-shot condition. Theoretic analysis illustrates the high efficiency of this generator and great potential value for industrial applications.
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