In preparation for the analysis and design of PWM dc-to-dc converters, this chapter analyzes power stage transfer functions focusing on their frequency response characteristics. The first section covers the Bode plot representation of s-domain transfer functions. The later sections then present analytical expressions, Bode plot
representations, and salient features of power stage transfer functions of the three basic PWM dc-to-dc converters. This chapter also discusses empirical approaches to the power stage dynamic analysis.
