Amplification of Nanosecond Pulsed Power by Synchronization of Double Inductive Energy Storage Circuit

As a new method to enhance nanosecond pulsed power, aiming improvement of cold plasma applications, a type of circuit that is amplified by synchronization of double simple inductive energy storage (IES) circuits with a semiconductor opening switch (SOS) diode was designed and evaluated. The secondary parts of double simple IES circuits which consist of capacitors, a pulse transformer, MOS-gated thyristors, and an SOS were connected in parallel and in series, and power amplification was attempted by synchronization of reverse currents of the SOS diodes in two circuits. As a result, when the load was also connected in parallel and in series according to circuit connection way, two times higher pulsed voltage and current were obtained at the load in cases of serial and parallel connections, respectively. When the load was a wire to a cylinder coaxial electrode, power of one pulsed discharge increased by the synchronization of the connected two circuits. The ratio of the power increase is expected by simple circuit calculations to be affected by the stray capacitance at the pulse transformer. This fact proves that the synchronization of the IES circuits is an available method for achievement of high power.