Device for determining and following the instantaneous coordinates of the extreme value of a curve

摘要

The invention relates to a device for determining and following the instantaneous coordinates of the extreme value of a curve y=f(x), characteristic of a system having an input x and an output y. The device comprises a multiplier having two inputs and one output, a first differentiator, whose input is connected to the input x of the system and whose output is connected to one of the inputs of the multiplier, a second differentiator, whose input is connected to the output y of the system and whose output is connected to the other input of the multiplier, and an integrator, whose input is connected to the output of the multiplier and whose output is connected to the input x of the system.