3. Switching in the step-down chopper

In all previous studies ( and § 1, 2 and 3), we examined ideal operation with perfect switches. In reality, however, the switches are subjected to very high loads each time they are switched. We'll therefore take a closer look at the opening and closing of the switches separately, before recalling their switching conditions. This study is applied to the step-down chopper, but can easily be transposed to other structures.