Almost useless post without mentioning frequency range and performance requirements (e.g. THD, offset). Generally, as correctly annotated in your block diagram, you are looking for an amplifier. Detail specification depends…
most OPAMPs are not able to drive 2A of ouptut current.
Hi it is a quick test with minimum performance. I just need to give more current to the input sinus signal using a pre-stage circuit to have an output signal with the same amplitude but stronger. I have thinking to use a current buffer opamp, but it is not working with bipolar signals...
Almost useless post without mentioning frequency range and performance requirements (e.g. THD, offset). Generally, as correctly annotated in your block diagram, you are looking for an amplifier. Detail specification depends...
There are few OpAmps which are able to drive upto 10A and Dual Supply Features.
In fact, the circuit that you're looking for is typical Power Output Stage of an B-Class Audio Amplifier but the frequency here is a serious issue.
So you drive the circuit with a bipolar voltage swing and a current source ( NPN and PNP conducts at each cycle) supplies desired current to the load.