CONTINUOUS-CONTINUOUS CONVERTER FOR STEERING AN AIRCRAFT FAN INVERTER, CONTROL METHOD AND FAN THEREFOR

摘要

The invention relates to a DC-DC converter adapted to be powered by a primary voltage source and to power a control electronics of a three-phase inverter, said three-phase inverter being configured to control a fan of a ventilation system. an aircraft. The DC-DC converter is characterized in that it comprises a transformer (16), a primary circuit (12) comprising two loops forming a symmetrical arrangement, at least one secondary circuit (14) comprising a secondary winding (Ls), adapted to supply on the one hand to the inverter an output voltage equal to twice the peak voltage across the secondary winding (Ls), and on the other hand to a branch of the circuit adapted to provide the inverter with a output voltage equal to the opposite of the peak voltage across the secondary winding (Ls), and in that the controllable transistors (M1, M2) are adapted to be each switched to zero voltage.