Z1202 wrote:I guess for me the intuitive definition of stable is BIBO. And the integrator isn't BIBO. I always considered marginal stability as being not really stableRobin from www.rs-met.com wrote:mystran wrote:Urgh, if you mean replacing the integrator with something that doesn't have a pole at DC...
hmm, actually i meant considering the integrator itself as stable filter vs considering only the larger structures containing the integrator (such as the lowpass) as stable filters. the integrator is exactly on the border between (strictly) stable and (strictly) unstable and i considered it within the set whereas Vadim didn't. that was the reason for the confusion, i guess.
yes. i see. question answered. thanks.
...looking forward to read the rest of the book this evening.