2022.04.22

Points of this article

・? Derive the transfer function of the part that generates the PWM output from the output of the error amplifier and the slope wave.

We will now consider the transfer function of the slope. The following figure is Figure 2 used in “Basic Concepts of Transfer Function and Derivation.” From this chapter, we will discuss the PWM and driver part G2(S), which follows the error amplifier part G1(S) up to the previous chapter.

Typical PWM control includes voltage mode and current mode. This chapter describes the following.

Downloadable materials, including lecture materials from ROHM-sponsored seminars and a selection guide for DC-DC converters, are now available.

- What are transfer functions?
- What is the Transfer Function of an Amplifier?
- What is the Transfer Function of a Slope?
- What is the switching transfer function?
- Transfer function of each converter
- Example of Derivation for a Step-Down Converter
- Example of Derivation for a Step-Up/Step-Down Converter – 1
- Example of Derivation for a Step-Up/Step-Down Converter – 2
- Switching Transfer Functions: Derivation of Step-down Mode Transfer Functions Serving as a Foundation