Magnetic Core Pulse-Switching Circuits for Standard Packages

A new method for the logical design of magnetic core pulse-switching circuits is presented. This method has features which make it excellent for use in standard packages. These features are the absence of spurious noise signals at the output; the fact that outputs are independent of the order of arrival of input pulses; the fact that interchanging components does not affect circuit behavior; and the fact that moderate changes in clock pulse amplitude and duration do not cause false operation. Furthermore, the number of components required by this system compares favorably with the numbers required by other systems. A computing system can be built by properly interconnecting a few different types of such packages. The new system uses advance current drive but performs the logical operations with both forward and backward windings in an output network. The use of both types of windings permits a reduction in the total number of cores required. Tests performed on actual circuits yielded very encouraging results. The circuits operated as predicted, and the performance was most satisfactory.