Post on 11-Jun-2018
Te
am
2
So
lar
Kio
sk P
roje
ct
Sp
on
sore
d b
y:
Te
am
Me
mb
ers
:
Jak
ub
Ma
zur
-M
an
ag
er
Eri
c T
ark
leso
n –
Pre
sen
tati
on
/La
b
Josh
Wo
ng
-W
eb
ma
ste
r
Be
n K
ers
hn
er
–D
ocu
me
nt
Pre
pa
rati
on
Cu
rre
nt
Se
nsi
ng
•A
pp
lica
tio
ns
•P
ros
Co
ns
•T
he
Ha
ll E
ffe
ct
•S
hu
nt
Re
sist
ors
•M
ak
ing
yo
ur
Da
ta u
sefu
l
•Q
ue
stio
ns
Ap
pli
cati
on
s
•M
ea
suri
ng
Po
we
r C
on
sum
pti
on
•D
esi
gn
fo
r S
afe
ty
–G
FC
Is,
fuse
s, c
ircu
it b
rea
ke
rs
•T
em
pe
ratu
re o
pti
miz
ati
on
–H
igh
cu
rre
nt
= h
ott
er
com
po
ne
nts
Sh
un
t R
esis
to
r
•Lo
w f
ail
ure
pro
ba
bil
ity
•C
he
ap
•W
ast
es
po
we
r
•Li
mit
ed
se
nsi
ng
ra
ng
e
•R
eq
uir
es
ad
dit
ion
al
vo
lta
ge
me
asu
rem
en
ts
Ha
ll E
ffe
ct S
en
so
r
•Is
ola
ted
fro
m c
urr
en
t
sou
rce
•H
igh
er
pre
cisi
on
•M
ore
exp
en
sive
•C
an
be
in
teg
rate
d i
nto
an
IC
de
vic
e
Wh
o i
s th
is G
uy
?
André-Marie Ampère(1775 –1836)
By1800 scientists where wondering if
electricity and magnetism where related.
Ampere was one of the first to develop a
technique for measuring electricity…
essentially a compass with wire wrapped
around it.
Electrodynamics �
Electromagnetics,
where studied at this time by: Faraday,
Weber Thomson and Maxwell.
Th
e H
all
Eff
ect
•W
he
n t
he
re is
a
Ma
gn
eti
c fi
eld
in
th
e
pre
sen
ce o
f a
co
nd
uct
or
a v
olt
ag
e is
ind
uce
d d
ue
to
ele
ctro
n a
nd
ho
le d
rift
•E
lect
ron
–n
eg
ati
ve
ch
arg
e c
arr
ier
•H
ole
–p
osi
tiv
e c
ha
rge
ca
rrie
r
Th
e H
all
Eff
ect
-M
ath
•V
ha
ll =
-(I
*B
)/(d
*n
*e
)
•R
ha
ll =
-1
/(n
*e
)
curr
en
t th
rou
gh
wir
e
•B
fie
ld =
Uo
*Ip
/(2
*p
i*r)
•I=
cu
rre
nt
•B
= M
ag
Flu
x D
en
s
•d
= d
ep
th o
f p
late
•e
= e
lect
ric
cha
rge
•j
= c
urr
en
t d
en
sity
•n
= c
ha
rge
ca
rrie
r d
en
s
•r
=
dis
tan
ce t
o c
en
ter
of
wir
e
•U
o =
4*
pi*
10
^-7
So
wh
at?
•W
e c
an
use
th
is t
o o
ur
ad
va
nta
ge
•W
e c
an
de
tect
–B
fie
ld
–C
urr
en
t
–V
olt
ag
e
–C
ha
rge
dri
ft v
elo
city
•W
e c
an
do
th
is w
ith
ou
t h
av
ing
in
lin
e
com
po
ne
nts
(li
ke
a s
hu
nt
resi
sto
r)
Ho
w d
o I
ha
nd
le t
his
da
ta?
•M
an
y t
yp
es
of
sig
na
ls
–R
efe
ren
ce v
olt
ag
e (
LEM
se
nso
rs)
–V
olt
ag
e d
rop
(S
hu
nt
resi
sto
r)
–P
ara
lle
l b
us
(So
me
AD
Cs)
–S
eri
al
inte
rfa
ce (
So
me
AD
Cs,
oth
er
ICs)
•T
rad
itio
na
l S
eri
al
Inte
rfa
ce
•I2
C B
us
Ho
w d
o I
ha
nd
le t
his
da
ta?
•S
am
pli
ng
by
dig
ita
l IC
s
–D
ire
ct
–In
dir
ect
•In
term
ed
iate
AD
C
•D
ire
ct
–B
uil
t-in
AD
C o
n t
he
PIC
•In
acc
ura
cie
s
–P
ara
lle
l
•H
igh
Pin
Co
un
t