Fuzzy inference unit to and from which a voltage value is input and output

摘要

A fuzzy inference unit to which an input value is applied as a voltage value is provided with a scaling circuit for increasing or decreasing a range of the input value and a shifting circuit for shifting a level of the input value. The fuzzy inference unit generates a defined output as a voltage value. In the input part, an output from a preceding stage of fuzzy inference hardware can be converted into a proper value as an input value to the fuzzy inference unit. In the output part, an output of the fuzzy inference hardware can be converted into a proper value as an input to a following stage. Thus, control suited to specific purposes can be performed.