If the compensator provides this condition, the bandwidth of
the voltage loop will be relatively narrow. Thus, the effect of
the parallel feedback on the output impedance becomes
negligible at 100 Hz. Fig. 4 shows bode magnitude plots of
HV(s) and a PI compensator that satisfy (18) for the boost
converter by the characteristics listed in Table 1. Given
implementation limitations, the bV is selected as 5/350.
Using the average model theory, the output impedance is
obtained and shown in Fig. 5, which is about 48 V at 100 Hz.