Power Electroics - PWM Inverters - Part 1

This is the first in a two part over view of PWM inverters. We explore the operation of a bipolar trailing edge naturally sampled inverter using an H-bridge power switch topology. An example with an inductive load is used to plot the current through the line. 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.

"Power Electronics Commonly used Power and Converter Equations," by Daniel W.Hart

“800VA Pure Sine Wave Inverter’s Reference Design,” Texas Instruments Application Report SLAA602A, June 2013–Revised August 2017

Keep switching!
-R. Kelnhofer

[JuanGomez-ggjn]

oh Jesus, you have a high level to explain power electronic, im so grateful that i see your video, thank u so much

[alexnoggle]

Great explanation here! wish I'd seen this a few months ago when I was first learning about this stuff.

[TastePolice]

your videos are really helpful! your voice is also really nice to listen to

[wifidon]

What is the source for your background music? Catchy!

[satakshisingh]

The music at the back is disturbing inspite of a good explanation

[waynewang]

Hello sir, the Vdc is 50 volt, but the v(out+, out-) is 100 volt, is it correct?

[soumeya]

Hello sir, so in order to get the duty cycles we ve to have previously a triangular signal & sinusoidal signal ? ( I mean there are no other way to get it )

[yoveluzan]

Hello, Sir can you explain me, please?
Why is there a diode parallel to the transistor?

[satasauu]

Hello sir, how much frequency does the triangle signal use?