Shaping Circuits for High Voltage Impulses

The calculation of the resistance values necessary to generate a particular double exponential impulse shape or the calculation of the two time constants from the resistance and capacitance values is a difficult and time consuming problem if done rigorously. In order to simplify these calculations, an approximation method has been developed which can be carried to any degree of accuracy by an iterative procedure. For normal purposes the initial calculations, done with a slide rule, will yield results of a sufficiently high accuracy.