\(\begin{equation}\label{eq15}
Q=\frac{1}{2\pi f_oR_eC_r}
\end{equation}\)By substituting the value of Q in equation (13) can be expressed as follows,\(\begin{equation}\label{eq16}
f_0^2-[f_s^2R_sC_r(V_{bus}/V_0)-1]f_0^3-(2f_s^2)f_0^2+f_0^4=0
\end{equation}\)
By simplifying the 4th order equation, we can get value of resonant frequency (fo) and by substituting this value in equation (15) for an assumed resonant capacitor value such as Cr=0.1µF we can get value of quality factor, which is useful in finding the (Lr) as,\(\begin{equation}\label{eq17}
L_r=\frac{QR_e}{2 \pi f_o}
\end{equation}\)Where Q is the quality factor of the converter, Re is the effective load resistance, fo is the resonant frequency and fs is the switching frequency.