ECE 09241 Chapter Notes -Common Logic, Serval, Or Gate
8 May 2022
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Electrical systems involves movement of charged electrons through wires. Voltage: the potential for charge to move, measured in volts. Current: the amount of charge flow, measured in amps. Resistance: is the wires opposition to flow, measured in ohms. Current flows from a higher-voltage point to a lower-voltage point on a wire. Commonly called ground and drawn as three line segments. Ohms law: v = ir, or voltage equals current x resistance. A switch is on electronic devices that acts like a wire between two terminals if that switch is configured to on. Electronically - controlled switch has another terminal whose voltage can turn the switch on the terminal that controls an electronically controlled switch is known as the control input. Switches in the early 1900 s were larger, each being serval inches long. A transistor is a smaller simple switch with no mechanical parts, invented in1947. Cmos technology uses pmos and nmos to implement digital currents.
