A novel current-mode non-linear feedback neural circuit for solving linear equations

A novel current-mode neural circuit employing non-linear feedback to solve a system of simultaneous linear equations is presented. The circuit has an associated transcendental energy function that ensures fast convergence to the exact solution while enjoying a resistor-less implementation. The hardware complexity of the proposed scheme compares favourably with existing voltage-mode neural circuits for the same task. PSPICE simulation results are presented for a chosen set of equations and are found to be in agreement with the algebraic solution.