Circuit arrangement for simulating a variable impedance, particularly an ohmic resistance

摘要

A circuit arrangement for simulating a variable impedance is specified which exhibits a current/voltage converter (1), the output of which is connected to a voltage proportional element (7). The output (9) of the voltage proportional element (7) is fed back to a second input (3) of the current/voltage converter (1) in such a manner that the output voltage (UE) is adjusted in such a manner that it corresponds to the load voltage (UL). The value of the simulated resistance (R) can be varied by varying the proportionality factor of the voltage proportional element (7). <IMAGE>