An open loop system represented by the transfer function

Home » Control System » Control system miscellaneous » Question

An open loop system represented by the transfer function G(s) = (s - 1) is
(s + 2)(s + 3)

1. stable and of the minimum phase type
2. stable and of the non-minimum phase type
3. unstable and of the minimum phase type
4. unstable and of the non-minimum phase type

Correct Option: B

Since, open loop system stability is depends only on pole locations, hence system is stable. There is one zero on right half of s-plane so system is non-minimum phase.

An open loop system represented by the transfer function G(s) =	(s - 1)	is
	(s + 2)(s + 3)