FC101 Design Guide

3.2.5 Feedback Conversion
In some applications, it may be useful to convert the
feedback signal. One example of this is using a pressure
signal to provide ow feedback. Since the square root of
pressure is proportional to ow, the square root of the
pressure signal yields a value proportional to the ow. See
Figure 3.20.
130BB895.10
+
-
PI
P
P
P
Ref.
signal
Desired
ow
FB conversion
Ref.
FB
Flow
FB
signal
Flow
P 20-01
Figure 3.20 Feedback Signal Conversion
Product Overview Design Guide
MG18C822 Danfoss A/S © 04/2018 All rights reserved. 29
3 3