Transfer Functions of PWM

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Presentation transcript:

Transfer Functions of PWM Chapter 6 Transfer Functions of PWM Dc-to-Dc Converters

Graphical Representation of Frequency Response

Multiplication Factors Bode Plot Construction

Integrations Bode Plot Construction

Differentiation Bode Plot Construction

Single Pole Bode Plot Construction

Single Zero Bode Plot Construction

Double Pole Bode Plot Construction

Double Zero Bode Plot Construction

Double Pole Bode Plot Construction

RHP Pole Bode Plot Construction

RHP Zero Bode Plot Construction

Example Bode Plot Construction

Example Bode Plot Construction

Examples Bode Plot Construction

Non-minimum Phase System The phase variation in the non-minimum phase system is wider than that of the regular system.

Identification of Transfer Function

Identification of Transfer Function

Buck Converter Power Stage Transfer Functions

Small-Signal Transfer Functions Buck Converter Transfer Functions

Asymptotic Plot for Frequency Response Buck Converter Transfer Functions

Buck Converter Example Input-to-Output Transfer Function Time-Domain Response Buck Converter Example

Buck Converter Example Duty Ratio-to-Output Transfer Function Time-Domain Response Buck Converter Example

Boost Converter Boost Converter Transfer Functions

Small-Signal Transfer Functions Boost Converter Transfer Functions

Duty Ratio-to-Output Transfer Function RHP zero at higher frequency RHP zero at lower frequency Boost Converter Transfer Functions

Duty Ratio-to-Output Transfer Function Boost Converter Example

Unit Step Response of Non-minimum Phase System RHP Zero and Non-minimum Phase System

Transient Response of Boost Converter Boost Converter Example initially decreases before the inductor current becomes sufficiently large.

Transient Response of Boost Converter Boost Converter Example initially decreases before the inductor current becomes sufficiently large.

Buck/Boost Converter Buck/Boost Converter Transfer Functions

Small-Signal Transfer Functions Buck/Boost Converter Transfer Functions

Asymptotic Plot for Frequency Response Buck/Boost Converter Transfer Functions

Empirical Methods for Small-Signal Analysis

Duty Ratio-to-Output Transfer Function of Buck Converter Power Stage Transfer Function of Buck Converter