During the inverted classroom, the meeting participants, students and invited guests, divided into groups, carried out one of the tasks conducted as part of the Power Electronics course. The test object was a non-isolated buck DC/DC converter in two versions: classical and synchronous. The exercise was conducted both in simulation (using MATLAB/Simulink software) and experimentally form. The programme of the exercise is presented in the attached laboratory manual. The execution of the exercise was coordinated by Grzegorz TarchaĆa, PhD. After completing the exercise, the participants exchanged their experiences of teaching in courses related to power electronics.