About the power transfer in linear time-varying circuits

This manuscript studies the achievement of a maximum power transfer from source to load in electric circuits where their basic elements (resistance, inductance and capacitance) are eventually linear and time-varying but not necessarily everywhere time-differentiable. This last aspect is quite relevant related to the inductive part of the circuit whose time-derivative, where it exists, plays the equivalent role of a resistor while at potential time instants where such a timederivative does not exist exhibits an impulsive characterization. The power transfer degradation is also formulated with explicit formulas compared to the initial values of the circuitry provided that the source remains unaltered through time.