Pulse duty cycle neural processing element applied to autotracking model

Pulse Duty Cycle is introduced as a generic tool to achieve a synaptic weight multiplication. In this scheme, a simple change of the pulse duty cycle will change the synaptic junction weight. The electronic neuron is named Neural Processing Element (NPE) which uses the pulse duty cycle modulation technique for weight changing. This scheme is used in developing an autotracking CMOS circuit. Simulations verify the pulse mode weighting operation, and the operation of the autotracking circuit. A CMOS prototype chip was designed and fabricated