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2.4 Functional Description
The transformer () transfers the input signal I
controls the output amplifier (4) via the expansion circuit (3). Fed by the auxiliary power
supply (6), the output amplifier provides a load-independent current I
is proportional to the input signal I
is safe at no load and protects the circuit from transient overvoltages.
2.5 Block diagram
U
E
or
I
E
U
H
6
Transformer
rms DC-DC converter
3 Expansion circuit
4 Output amplifier
5 Suppression circuit
6 Auxiliary power
or U
E
or U
. The suppression circuit (5) ensures that the output
E
E
3
U
eff
SIMEAS-T - Transducer with Auxiliary Power
to the rms dc-dc converter () which
E
or voltage U
A
4
5
which
A
I
A
or
U
A
7
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