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What is the Transfer Function of a Slope?

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.

・Voltage-Mode Transfer Functions
・Consideration of Current Mode
・Summary of Current Mode Transfer Functions and Various Modes
・Derivation of Fm in Current Mode
・Analytic Solution for Subharmonic Oscillation
・The Reason Why Compensation Ramp Slope Must Be At Least 1/2 Down Slope

Learn Know-how

Opamps

What are Opamps? ＋

Transfer Function

What are transfer functions? ＋
What is the Transfer Function of an Amplifier? ＋
- Derivation of the Transfer Functions for Error Amplifiers, Voltage Amplifiers, Current Amplifiers
- Amplifier Virtual Short
What is the Transfer Function of a Slope? ＋
What is the switching transfer function? ＋
Transfer function of each converter ＋