cell convertitrice voltage - current, adjustable, carried out by one stage differential transistors, mos.in particular, to form synapses to networks neuroniche and combination of these cells to form the support of synapses of a core neur

摘要

A cell of MOS transistors for converting a voltage into a current for forming synapses of neural nets, in particular for converting the difference between an input voltage (VIN) and a voltage (VW) for weighting the synapse into a current, realized by means of a differential stage comprising a first transistor (M1) operating as a current generator, in which a first and a second branch in parallel end, which branches respectively comprise a second (M2) and a third (M3) push-pull connected transistor, to the gate regions of which the input voltage (VIN) and the voltage (VW) for weighting the synapse, and to which a fourth (M4) and a fifth (M5) transistor are respectively connected in series, in which the fourth (M4) and the fifth (M5) transistor are P-MOS transistors having their gate regions short-circuited and said fourth (M4) P-MOS transistor is connected as a diode, and in which the output current (IOUT) is drawn from the node (N) that connects said third (M3) and said fifth (M5) transistors inserted in series in said second branch of the circuit and a capacitor (c) is connected to the gate region of said third (M3) transistor to store the voltage (VW) for weighting the synapse applied to the circuit.