The theory of clipping voltage-switches and design of quaternary nMOS circuits

Abstract

A theory of clipping voltage-switches suitable to quaternary nMOS circuits is proposed. It is based on the viewpoint that switching states of elements and signals in a circuit should be described separately by using switching variables and signal variables. Threshold comparison operations and voltage-clipping operation that can reflect the working principle of nMOS circuits are introduced. Their relative properties and logic-function expressions are discussed. Some basic quaternary nMOS circuits are designed in order to demonstrate the procedure.<>