Alternative term: Feedback loop
A group of circuits including at least one forward path and one feedback path which make up a closed loop in a block diagram.
Figure 2 - Block diagram of automatic control system (5-2-045) incorporating a closed loop (5-2-080)
Reference: I.E.C. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Celsius (previously Centigrade)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM