Circuit arrangement for dynamic current limiting in converter circuits

摘要

The invention relates to a circuit arrangement for dynamic current limiting in converter circuits. Dynamic current limiting is used to increase the load capacity of the actuating element and of the motor while simultaneously protecting against continuous overload. The invention is characterised in that an integrator having a defined response level is connected via a first voltage divider to the output of the speed regulator, and a transistor is connected to the output of the integrator, which transistor acts via a resistor on a second voltage divider, which determines the maximum output voltage of the speed regulator. <IMAGE>