Buck Regulator in L-C Filter Operation

LEARNING OBJECTIVES

1. Given a PWM modulated MOSFET half-bridge, an L-C filter, a source voltage, and a load resistance, students will calculate the peak-peak amplitude of inductor ripple current and output ripple voltage, and the converter efficiency, with specified units and accuracy, by applying the appropriate theoretical equations.
2. Given a PWM modulated MOSFET half-bridge, an L-C filter, a source voltage, and a load resistance, students will simulate the L-C filter behavior to verify the consistency of theoretical predictions, by comparing the simulated and the calculated output voltage under the same operating conditions.
3. Given a real PWM modulated MOSFET half-bridge, an L-C filter, a source voltage, a load resistance, and a two channel function generator, students will measure the converter efficiency and the peak-peak amplitude of inductor ripple current and output ripple voltage, and they will determine the parameters of the inductor and of the capacitor, with specified units and accuracy.

REQUIRED SKILLS

• Basic proficiency using Multisim Live
• Basic proficiency using ELVIS III Instruments
• Basic proficiency in circuits and analog electronics