Switching Techniques and Circuits

In the area "Power Electronics"

Level
Technical
Focus
Theory
Activity
Unpopulated

Table of Contents

Objectives

Objective Minimum Expected Coverage

Understand the fundamental principles of switching techniques in power electronics.

Concepts of switching and pulse width modulation (PWM). Role of switching in energy conversion and efficiency. Basic components: switches, diodes, inductors, capacitors.

Learn the design and operation of buck converters.

Step-down voltage conversion principles. Circuit topology, operation modes (continuous and discontinuous). Key parameters: duty cycle, inductor selection, output voltage ripple. Design equations and practical considerations.

Learn the design and operation of boost converters.

Step-up voltage conversion principles. Circuit topology, operation modes (continuous and discontinuous). Key parameters: duty cycle, inductor selection, input current ripple. Design equations and practical considerations.

Learn the design and operation of buck-boost converters.

Principles of combined step-up/step-down conversion. Circuit topology, operation modes (continuous and discontinuous). Key parameters: duty cycle, inductor selection, output/input voltage relationship. Design equations and practical considerations.

Analyse control methods for switching converters.

Feedback control: voltage and current mode control. PWM generation and control loop design. Stability analysis and compensation techniques. Digital control methods and microcontroller/DSP implementation.

Explore applications and performance optimisation of switching circuits.

Efficiency optimization: reducing losses in switches, inductors, and capacitors. Thermal management: heat sinks, cooling methods, and PCB layout considerations. Applications: power supplies, battery chargers, LED drivers, renewable energy systems. Case studies of practical implementations and troubleshooting techniques.

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