What are some pros and cons of Open Loop control?
Pros
Very simple & easy to design. Are generally stable. Easy to make and use
Cons
Less bandwidth in open loop. Inaccurate & unreliable. Output is affected by disturbances
What are the zeros and poles of a system?
The poles and zeros of a system are the points at which the systems response will be calculated as 0.
The poles are found in the denominator of the transfer function and the zeros are found in the numerator of the transfer function.
What are some pros and cons of Closed Loop control?
Pros
More accurate in presence of non-linearities, Less affected by noise
Cons
Complex systems. The feedback reduces gain of the system. Can become unstable quite easily