In this section, we present, in the first place, the full-wave command principle and we apply it to the single-phase and tri-phased bridge inverters.

This course shows how an inverter can create one or more alternative voltages by commuting the switches at the frequency required for these voltages. We consider, successively, the case of the single-phase and tri-phased inverter. After having studied how to adjust the frequency, we indicate how to adjust the amplitude of the produced alternative voltage(s).

Four virtual laboratories are then proposed:

Analysis of the operation of a single-phase inverter with R-L load

In this virtual laboratory, we determine the current absorbed by a R-L load when it is supplied by a single-phase inverter operating in full-wave command. We determine the current provided by the source, which supplies the inverter.

Analysis of the operation of a tri phased inverter with R-L load

In this virtual laboratory, we determine the currents absorbed by a star-connected load with insulated null, when it is supplied by a tri phased inverter operating in full-wave command. We also determine the current provided by the source, which supplies the inverter.

Harmonic analysis of the output voltage

In this virtual laboratory we study the harmonic analysis of the output voltages(s) of an inverter operating in full-wave command. We are doing this for the single-phase inverter as well as for the tri phased inverter. We can thus determine the useful component(s) and the parasitic components of these voltages.

Harmonic analysis of the input current

In this virtual laboratory, we study the harmonic analysis of the current absorbed from the source by a single-phased or tri phased inverter operating in full-wave command.The study is based on a power balance, in order to determine the useful component and the parasitic components of this current.