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Practical Electrical and Electronic Circuits - Coggle Diagram
Practical Electrical and Electronic Circuits
In a
series
circuit there is only one path for the current and the
current
is the
same
at all points, no matter how many components
In a
parallel
circuit there is
more than one path
for the
current
to follow
Process
devices are
operate
when an
input level
, such as voltage,
reaches
the
required value for the device to operate
Output
devices
transform electrical energy into
any
other
type of
energy
In a
series
circuit the
voltage
is
shared
between
components
Is = I1 = I2 = I3...
Vs = V1 + V2 + V3...
Current
in a
parallel
circuit
splits
into different
branches
then
combines
again before it
returns
to the
supply
Is = I1 + I2 + I3....
Voltage in a parallel circuit is the same at each branch as the supply,
Vs = V1 = V2 = V3...
Unless there are multiple components across a branch then the voltage is divided
An
input device
responds
to
changes
in the
environment
and
produces
a suitable
electrical signal for processing
in an electronic circuit
In all input devices, other
forms of energy
are
transformed into electrical energy
A voltage divider
divides a supply voltage
across two resistors which are
connected in series
A
fuse melts
to
break
a
circuit
when the
current
gets too
high
Voltage divider:
Vs = V1 + V2
V1/V2 = R1/R2
V1 = Vs x R1/R1+R2
Process devices:
Npn transistor
- switches on when input voltage is greater than or equal to 0.7V
Mosfet transistor
- switches on when input voltage is greater than or equal to 0.2V
Transistor switch
- when used as a switch it can conduct or not conduct