A new approach to the use of a digital computer in circuit design

In the presently available C.A.D. systems the extent to which the computer can assist in the design of a circuit is fundamentally limited by the fact that the potential user generally has to perform the initial d.C. and a.c. design of the circuit before such a system can be used. This paper discusses a new approach whereby the systematic hy-hand design procedure is automated so that the circuit designer is able to use the computer throughout the whole design phase. The problem of selecting the optimum set of preferred values is discussed, although at the time of writing an efficient algorithm to solve this nun-linear optimization problem has yet to be developed.