Abstract
AbstractA high voltage and high current pulse switch using avalanche mode thyristor has been developed for the high voltage pulse generator. When the break‐over voltage is applied to a thyristor, the thyristor turns on without the gate input current. We call avalanche mode thyristor (AMT) which operates such a switch mode. AMT has many advantages, for example, turn on function without trigger input circuit in the series connection, high speed switching characteristics, etc. A magnetic switch (MS) using the saturation of the core is adopted for the high current pulse shaping. Twelve stages of AMTs generate 11 kV and 1.36 kA with 260 nanoseconds pulse width. A high voltage pulse has been produced up to 65 kV, 43A by using the AMT pulse generator and a pulse trans. The behavior of AMT and the performance of the circuit are discussed.
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