Trans/AMPs
Three basic amplifier configurations for a transistor
Common Emitter (CE) or Grounded Emitter
Common Base (CB) or Grounded Base
Common Collector (CC) or Grounded Collector
Wave generators, converts DC from a power supply into an AC signal.
Oscillators
six basic logic gates.
AND Negated AND (NAND) OR Negated OR (NOR) Exclusive OR (XOR) Exclusive NOR (XNOR)
Factors that Affect Resistance
(R) Resistance
(ρ) Material
(l) is Length
(α) is Cross-sectional area
**STEAL** whoever says first may steal the points name the 4 class amplifactions
A AB B C
chump.
consists of metal with a very large surface area,
attached directly to the metal case of a transistor,
dissipate heat into the surrounding air
more rapidly
A heat sink
Two of the most common types of atomic oscillators
rubidium gas cell oscillator and the cesium beam oscillator.
at least two inputs, only one output and performs a logic function.
Gate
consists of 5 main parts Two main circuits: primary and secondary
relay
purely electronic and contain no moving parts.
DOUBLE POINTS !!
Solid state Relays, SSR
Has three terminals similar to the bipolar junction transistor
(FET)
Source – current entry point
Drain – current exit point
Gate – controls the flow of current through the FET
can use audio as its input instead of a constant voltage input. output frequency of the oscillator is now being controlled by the amplitude (voltage level) of the audio signal.
if you get this wrong you have to sing the first verse of the air/space force song aloud.
VCOs
binary 1 represents _binary 0
represents _
binary 0
represents 0V and binary 1 represents +5V.
In Transformer Schematic drawings, When the phase dots are opposite, or none shown
Out of phase
STEAL** draw a AND and XOR gate
first to finish gets the points
suckaaaa
Reduce unwanted ripple, Regulate output voltages, Miniature, all-in-one board applications, Improved reliability, Current limiting capability, Provide over voltage protection.
Advantages of an IC EVR
If the frequencies do not match, then the __ sends an
error/tuning voltage to the oscillator to tune it to the
correct frequency.
PLL phase lock loop
QUICK !! draw and XNOR gate and a inverter !! 10 seconds
Curved line with an arrowish thang, and a negated symbol, and a triangle w a dot
the inductive interaction between two or more separate windings. It is the principle that makes transformers work
Mutual induction
Carbon zinc and alkaline are primary cells.
Lead-acid, nickel cadmium, and lithium are
common types of secondary cells.
Easier, more accurate tuning, Isolation between stages so that one stage does not feedback and interfere with other stages. Used for impedance matching between stages. USED IN MANY RF
Transformer Coupling
uses a transistor, or other non-linear devices, to split the power requirement. necessary to provide voltage gain.
Amplifier
Digital circuits use transistors to create logic gates in order to perform
Boolean Logic
linear (analog), digital , mixed
(bonus 25 points for saying the responsibility of each)
Classes of Integrated Circuits
can be used as a voltage-variable capacitor to change the output frequency of the oscillator and allows it a greater frequency range for the output as well.
if you get this wrong you have to tell the class the craziest story that happened to you.
A varactor.