COMBINATIONAL LOGIC Circuit Design

Steps Create the truth table Extract the Boolean Expression from the truth table or create a K-Map Simplify the expression Draw the schematic Build the circuit

Design a safety alarm system for a car that alerts the driver when the seatbelts have not been fastened, or when the door is ajar while the key is in the ignition. A=KeyB=DoorC=Seatbelt ABC X ABC Boolean Expression Is: ABC + ABC + ABC=X Logic Problem

K-Map Dist. Th. 4 Th. 6 Dist. Th. 11 Dist. Boolean Simplification AB C Create Expression & Simplify

Create Circuit Schematic X

NAND Only Solution

MultiSIM Demo