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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
10-6 Sensors and Sensor Technology
the transistor can be controlled by a pulse width modulator (PWM) or by a pulse frequency modulator
(PFM). e traditional PWM used in switching converters is not the most suitable solution in low-power
ap
plications
. A pe
riodic
sw
itching
se
quence
ho
lds
th
e
tr
ansistor
in on st
ate
du
ring
a po
rtion
of th
e
se
quence
pe
riod,
ca
lled
du
ty cycle
. e vo
ltage
of th
e
PV pa
nel
is ad
justed
by me
ans
of th
e
du
ty cycle
. As th
e
tr
ansistor
is co
ntinuously
sw
itching,
th
e
re
sulting
po
wer
co
nsumption
is to
o
hi
gh
fo
r
lo
w-power
PV pa
nels
(<
1W)
.
In
stead,
PF
M
ca
n
be us
ed
to fu
rther
re
duce
po
wer
co
nsumption
. e co
nverter
re
mains
in
active ...
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Publisher Resources

ISBN: 9781439848913