Fluke 77 Series III - Page 24

Theory of Operation
Detailed Description
2
2-7
AC
AC
AC
AC
AC
FILTER
FILTER
R10
C11 C5 C6
C8
C7
C9
+
+
R18
R19
R17
R9
16 17 28 26 39 40 27 44 45
10 9 8
46 47
INPUT
DIGITAL SECTION
Z1 Z1
+
+
+
+
+
INT
DE-INT
REF REF
AC CONVERTER
ACTIVE FILTER BUFFER
INTEGRATOR
COMPARATOR
U1
aaa03f.eps
Figure 2-2. AC and A/D Converter