A sma
water cuent
(base cuent) is
used to adjust
the valve in
thepipe...
...that controls a
large water cuent
(coector cuent)
that flows in
thepipe.
I s!
This is how
transistor
amplification
works.
Although the flow
of electrical cuent
is the oosite in a PNP
transistor, the basic
operation is the same.
A transistor can
also be used as
a contactle
switch.
That's because the
water stops if the
valve is closed.
Squeak
Slam
Transistors 181
If we coect a
load and a power
suly betwn
the coector and
emier...
...and use the base-
emier path instead
ofa switch...
...we can use the
sma base cuent
to control the large
coector-emier
cuent.
But what
gd does
that dous?
It sms like a
regular switch
would work
justfine.
Unlike a regular switch,
it has no physical
contact, so it doesn't
wear out and is le
likely to fail.
Also, since it can be
turned on and o
rapidly, control can
be fine tuned.
Oh! It reay
has some great
advantages!
Power
suly
Resistance
Switch
Load
Resistance
While the switch is o,
no coector-emier
cuent flows.
Click
Click
182 Chapter 5 How Can You Conveniently Use Electricity?
Components caed
integrated circuits
( IC
s) are also
usedinelectronic
devices such as TVs
or computers.
An IC contains an extremely
largenumber of elements
such as transistors, diodes,
resistors, and capacitors
these complicated circuits can
perform digitallogic.
H...
We, this
completes our
discuion of
the basics of
semiconductor
devices...
...which means...
Your studies are
over! Thank you for
a your hard work!
No way!
It's you who
deserves a the
thanks. Thank you
very, very much!!
Since the ca
for picking you up
hasn't come yet,
let's go for a
lile stro!
Reay!?
That would be
awesome!!
Transistor Diode
Resistor Capacitor
Clap
clap
Transistors 183
Where should
we go...??
Hark!
The time to
depart is nigh!
Huh?
Already??
But it's...
it's t...
You don't have a
choice, right...?
Get thee posthaste
to the roof of an
altitudinous edifice.
Whi
clack
184 Chapter 5 How Can You Conveniently Use Electricity?
We, I gue this is
it. I'm glad I met you,
Hikaru Sensei.
and I’m also
glad I learned
the basics of
electricity.
I learned a lot
by teaching you,
Rereko!
Kp at it,
even back on
Electopia!!
And you
kpworking
onyour
research!
...and also
cleaning your
rm...
...and...
Re...
...Rereko...?
Ah!

Get The Manga Guide to Electricity now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.