The Optimization of Square-Law Elements Based on Silicon Carbide Nonlinear Resistors

A segmental square-law circuit is described employing silicon carbide nonlinear resistors in a parallel configuration analogous to a conventional diode function generator, but having the advantage of requiring no bias supplies and giving an output noticeably free of discontinuities. An optimization procedure is described by which satisfactory values for the circuit elements were obtained. Using only two segments, the square law was fitted to within 1 volt over a working range of 0 to 100 volts.