Appendix
App.2-1
IM CA150E
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App
Appendix 2 Block Diagram
■ Block Diagram
BA
TT
.
12 V DC
RS232
Power source/communication port
Charge circuit
Power source control
DC/DC converter
RS232 driver
DC/DC converter
Reg.
24V OUT
24V OUT
part
Measure part
Input circuit
Shunt resistance
Constant current source
AD converter
Source/CPU part
TC
R.J. INPUT
H
mA MEASURE
L
CPU
Display
Memory
DCA
DCV
Ω
Current detection
Excess current protection
Current voltage conversion
Setting
FRQ
Excess current protection
H
L
SOURCE
OUTPUT
DCV DCA
Ω
Reference voltage source
FUSE
Ω