notes 1 Flashcards
(21 cards)
electrical system
movement of charged electrons through wires
volts
this is the measurement of voltage
voltage(V)
voltage is the potential for charge to move
current(I)
the amount of charge flow
amps
measurement of charge flows
resistance(R)
the wires opposition to flow
ohms
measurement of resistence
ground is represented by
three lines represent this
ohms law
V=IR
switch
an electronic device that acts like a wire between two terminals if the switch is “on”
electronically controlled switch
a switch that also requires power
examples of switches
relay, vacuum tube, discrete transistor, integrated circuit…
transistor
a smaller simpler switch with no mechanical switch
cMOS technology
uses pMOS and nMOS transistors to implement digital curcuits
nMOS transistor
conducts when its control input is 1
nPOS transistor
conducts when its control input is 0
circuit
a path through which electrical current can flow
digital circuit
has voltages that are treated as either high or low and is typically built as a connection of switches
analog system
has voltages that are treated as having infinite values like 0.15, 0.2, 0.3333 etc
digital systems
digital circuits are also referred to more generally as this
