Power Electronics - PWM Inverters Part 2

This is the second in a two part overview of PWM inverters. We explore the operation of a bipolar double edge naturally sampled inverter using an H-bridge power switch topology and then look at unipolar (3-level) PWM inverters. An example with an inductive load is used to plot the current through the line and compare the differences. Below are some very good references if you would like to go into more details on PWM power inverters.
"Pulse Width Modulation for Power Converters, Principles and Practice," by D. Grahame Holmes and Thomas Lipo, Wiley-Interscience, 2003.
"Power Converters, Applications and Design," by Ned Mohan, Tore M. Undeland and William P. Robbins, John Wiley & Sons, 2003
"A Generalized Time Domain Pulse Width Modulation Spectrum Calculation Method," by Ivan Mrcela, Damir Sumina and Viktor Sunde, Project Report funded by Croatian Science Foundation, 2013.
bib.irb.hr/datoteka/824164.Mr...
"Power Electronics Commonly used Power and Converter Equations," by Daniel W.Hart
www.engbookspdf.com/download/...
“800VA Pure Sine Wave Inverter’s Reference Design,” Texas Instruments Application Report SLAA602A, June 2013-Revised August 2017
www.ti.com/lit/an/slaa602a/sla...
Keep switching!
-R. Kelnhofer
[e-mail]
www.engbookspdf.com/download/...
“800VA Pure Sine Wave Inverter’s Reference Design,” Texas Instruments Application Report SLAA602A, June 2013-Revised August 2017
www.ti.com/lit/an/slaa602a/sla...

[@adaminsanoff]

Thank you Sir!

[@powerelectronicswithdr.k1017]

You are welcome. Best wishes on your designs.

[@kabirmakrani2620]

Good morning sir I want to calculate Switching loss of the MOSFET for the spwm inverter

[@powerelectronicswithdr.k1017]

The switching loss can be estimated if you know the max turn-on and turn-off power values. It would then then be 0.5*(p_max_on*t_on + p_max_off*t_off)*fswx, where fswx is the frequency of your sawtooth carrier wave. The tricky part will be estimating the turn on and off times and the max power values.

[@alhassanalmalh3902]

Hi, I need your help to solve a question in single pulse modulation inverter