Abstract: Emphasis in the design of a high-voltage D. C. generators for use infuze electronic safety systems is placed on the proper relations ship betweenenergy storage, speed and efficiency of energy transfer as well as size ofthe generator. Taking a single terminal inverse excitation on/off generator as anexample in the analyse of circuit characteristics, the paper reaches at somevaluable conclusions, and shows the design of a D. C. generator based on thoseresults.