Design and Modeling of DC-DC Converters & DC-AC Inverters

Design a simple transfer function for a booster dc-dc converter in Matlab and Simulink, using a 100/(s^2+8s+100) transfer function, a step input, and a scope.

Explore closed-loop control by implementing a pid controller in Simulink, tuning parameters, and observing step response and saturation to achieve a stable output.

Design and simulate a coupled differential equation system in Simulink using integrator blocks, a sine input, and initial conditions to observe x1 and x2 responses.

Analyze the boost converter topology and its dynamic equations, deriving iL and vC under mosfet on/off states and the duty cycle.

Demonstrates the design of a boost converter topology using two dynamic equations, modeling the inductor current and capacitor voltage with Simulink blocks and a pulse generator.

Design a boost converter in Simscape using the specialized power system toolbox, assembling a dc voltage source, mosfet, diode, inductor, capacitor, and load, with a pulse generator and measurements.

Design and simulate a buck converter using Matlab, Simulink, and Simscape, comparing open-loop and closed-loop configurations with duty cycle driven pulses, ripple observation, and output voltage behavior.

Explore how input voltage changes influence the output of a buck converter, using real-time mathematical modeling and simulation with 143 µH, 200 µF, 12.5 Ω, and 25 kHz switching.

Explore open-loop buck converter behavior under varying output loads and real-time voltage responses, including inductor charging and discharging. Preview upcoming PWM generation and closed-loop modulation in dc-dc converters.

Demonstrate how pulse width modulation creates gate pulses for dc-dc converters using a sawtooth carrier and a reference voltage to set the duty cycle in Simulink.

Implement closed-loop voltage control for a boost converter using PI/PID with PWM, feedback, and saturation to reach a reference voltage at a set switching frequency.

Demonstrate PI control of a closed-loop buck converter in Simulink, regulating output voltage with a reference and saturation block at 25 kHz switching, and reducing ripple via feedback.

Explore the flyback converter, its isolated transformer design, and how it enables boost or buck operation with multiple outputs; simulate in Matlab and examine switching waveforms.

Simulink design of a flyback converter with a 100 V input, 100 ohm load, capacitor to minimize ripple, MOSFET and diode, DC source, RLC, and an isolated transformer.

Design and simulate a flyback converter in Simulink using a coupled inductor with a linear transformer at 20–25 kHz, exploring PWM duty cycles and continuous or discontinuous operation.

Explore the buck-boost converter circuit through closed-loop Simulink simulations, switching between buck and boost modes by adjusting the reference voltage, with inductor, capacitor, resistor, and diode modeled.

Explore open-loop buck-boost converter simulations in Simulink, assembling a DC voltage source, inductor, capacitor, diode, and MOSFET, and observe voltages, currents, and ripple to inform closed-loop design.

Demonstrate integral PWM based buck-boost converter with closed-loop control using a PI controller to regulate 24 voltage buck and 100 voltage boost from 48 voltage input in a flyback-like topology.

Design an integral pwm buck-boost controller in Simulink using a dc voltage source, mosfet, rlc network, and pid-based pwm to regulate a 24 v output.

Simulate integral pwm buck-boost converters and compare open-loop and closed-loop control for dc-dc conversion. Learn how pi controllers reduce ripple during buck and boost modes in dc-dc and dc-ac topologies.

Explore dc-to-ac inverters that convert dc power to ac with controlled voltage and frequency, covering voltage-source and current-source topologies, single-/three-phase, multi-level designs, and harmonics.

Design and simulate a single-phase open-loop H-bridge inverter in Simulink, using four switches and PWM gate pulses from a DC source to drive an RLC load and observe outputs.

Simulate the H-bridge inverter by observing S1–S4 switching and the pulsating AC output, then discuss filters to reduce harmonics and measure inductance and capacitance.

This session designs a single-phase H-bridge inverter with an LC filter to produce a sine wave from a dc source, by calculating L and C values and applying SPWM.

Design and simulate a single-phase spwm h-bridge inverter in Simulink with a dc source, four switches, lc filter, and rlc load to study open-loop and closed-loop voltage control.

Demonstrates simulation and analysis of a single-phase sinusoidal-based inverter, showing modulation index effects on output voltage and current and performing FFT-based harmonic distortion analysis.

Analyze the THD of a SPWM, single-phase H-bridge inverter by using an LC filter to produce sinusoidal output, and log data in Matlab/Simulink for FFT-based analysis.

Explains the 180-degree conduction mode for a three-phase inverter, detailing gate-pulse sequencing for S1–S6 and calculating pulse width and delays in Simulink.

Design and simulate a three-phase inverter in Simulink using a DC voltage source and PWM-controlled MOSFETs, wiring S1–S6 to drive a three-phase RLC load with measurements.

Explore pwm based 3-phase inverter simulation to observe dc-to-pulsating ac conversion, phase delay, and 180-degree conduction, and analyze the resulting voltage and current waveforms from log data.

Analyze the three-phase inverter's total harmonic distortion using fft analysis in Simulink, observing thd values around 30% at 50 Hz and exploring future pwm-based inverter design concepts.