Abstract
This paper mainly deals with the dynamic mode characterization of the super-gain BJT developed in the GREMAN laboratory and a low-loss 600V AC switch which it gives birth to. Firstly, the conception and validation of the super-gain BJT as well as the AC switch are presented followed by the static mode characterization of these innovative bipolar components in order to highlight their promising performance on DC current gain and conduction power dissipation. Their interesting DC characteristics conduct us to carry on the dynamic characterization. The 'Double-pulse' configuration with inductive load is used as testing circuit for both components and a specific driver is developed in order to optimize their switching performance, it will be introduced along with the test bench in the second part of this paper. The third part of this paper is dedicated to present the switching curve of the super-gain BJT and a comparison of switching time between our super-gain BJT and a conventional BJT is also carried on. The dynamic characterization results of the 600V AC switch will be presented in the fourth part of this paper. The good dynamic performance of the super-gain BJT and the AC switch is revealed by the characterization results and along with its full controllability, good compatibility with actual fabrication process and the low conduction power dissipation, the advantages of the super-gain BJT and this innovative 600V AC switch structure have been confirmed.
Published Version
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