Difference between series-series amplifier and series-shunt

[calculus_cuthbert]

Could someone please explain how to design a series-series feedback and a series-shunt feedback. I feel they are kind of the same.

Because, when we use an opamp and connect it in a noninverting configuration it is a series-shunt amplifier but it can still source and sink current into a resistive load which means we can take an output current out of it so we can use it as a series-series amplifier.

Is this thinking correct?

 

[LvW]

Re: Difference between series-series amplifier and series-sh

I don't like this terminology at all, because - for my opinion - it is confusing.
And according to my experience, it is used in different ways.
Some authors use these words based on the sequence input-output and some vice versa.
Based on the input-output sequence, the phrase series-shunt feedback means, that the feedback signal is a voltage which is added in series with the input voltage, whereby the feedback signal is derived in parallel to the load impedance (which means: as a voltage!).
Thus, all opamps normally are used with xyz-shunt feedback (non-inverting: series-shunt, inverting: shunt-shunt). On the other hand, OTA's are used with xyz-series feedback, since the feedback signal is derived from the output current which flows through elements (load and feedback path) which are connected in series.