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i never studied electrical engineering, and generally am a complete novice.
below are some notes i've been taking as i learn. i'm also taking notes on
specific [integrated-circuits] while learning about making a
[diy-synthesizer].
I = current (amperes)
V = voltage (volts)
R = resistance (ohms)
I = V / R V = I * R R = V / I
predicts how a magnetic field will interact with an electric circuit to produce
a electromagnetic field, which is, electromagnetic induction
The electromotive force around a closed path is equal to the negative of the
time rate of change of the magnetic flux enclosed by the path.
* also 2K8 means 2800 for example
one side has no resistance, other is infinite (ideally).
they ensure current flows in one direction
cathode - short leg: negative end
anode - long leg: positive end
light emitting diode (LED) - converts electricity into light
resistors simply resist current! then converts current into heat.
resistors are made out of insulators and conductors.
more insulators is equal to more resistance.
resistors have stripes on them. read about the [electronic color code].
resistors also can serve as heating elements.
if you think about a toaster, or a hair dryer, they function by means of the same mechanism as resistors.
stores electric charge in an electric field. it is :
electrolitic capacitors are bigger - they are polarized.
cermaic capacitors don't store very much charge - not polarized.
a three terminal resistor.
there is dial against a graphite disk
the more graphite that it has to go through, the more resistance.
the pivot point is connected to the middle.
side pins are the opposite sides.
the terms are called:
a specific set of capacitors, inductors, transistors, resistors in a circuit.
these look like small "chips". "living bug" position refers to it being with
its legs down. and the flat part is at the top.
the pins on an IC have numbers like so:
10 9 8 7 6 | | | | | |----------| |\ | | | | |/ | |----------| | | | | | 1 2 3 4 5
where the left side has a marker like a half circle
* emitter
* base
* collector
* source
* gate
* drain
* VCC: Voltage Collector Collector
* VDD: Voltage Drain Drain
* VEE: Voltage Emitter Emitter
* VSS: Voltage Source Source
Read more about the history of these names [here].
short for Analog to Digital Converter
i decided to start keeping track of specific ICs in the [integrated-circuits] page.
within electrical engineering, we need to read schematics. they're designs that
specify the components of a electrical circuit. reading schematics mostly
involves learning a number of small icons used as a visual language to
represent components. see this useful
[sparkfun]
guide on reading schematics.
BOM usually stands for bill of materials - a list of all the components or eletronics or pieces used in a circuit or build.
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