AGC Designer’s Reference Handbook
DEIF A/S Page 125 of 168
Proportional regulator
When the regulation deviation occurs, the proportional part will cause an immediate change of
the output. The size of the change depends on the proportional action coefficient, KP.
The diagram shows how the output of the P regulator depends on the KP setting. The change of
the output at a given KP setting will be doubled, if the regulation deviation doubles.
P-regulator
0
200
400
600
800
1000
1200
0 5 10 15 20 25 30
mA
kP
8%
4%
2%
1% 0,5%