Design Of Nonlinear Control Systems With The Highest Derivative In Feedback, Volume 16

Let us consider the application of the above design methodology to the problem of switching controller design for a boost DC-to-DC converter circuit as shown in Fig. 7.3.
By Kirchhoff's voltage law we have E = V L when the transistor is ON and E = V L + V out when the transistor is OFF; hence, we get
where the state of the ideal switches (transistor and diode) is represented by the control variable u and u ? {0,1}.
The voltage drop V L across an inductor is given by
, where I L is the current through the inductor with inductance L. We have
for the voltage drop V C across a capacitor, where I C is the current through the capacitor with capacitance C. By Ohm's law, the voltage drop V R across a resistor is given by V R = RI R, where I R is the current through the resistor with resistance R. By KirchhofF's current law we get I Lu = I C + I R. Denote x 1 = I L, x 2 = V C. By taking into account that V R = V C = V out, we obtain the bilinear switched...