Active clamping converter and direct-current power supply simulation load

An active clamp converter includes: a transformer having a primary winding, a secondary winding, and a primary auxiliary winding, the number of turns of the primary auxiliary winding being greater than that of the primary winding; a DC electric energy input circuit; the main switching circuit enables the primary winding to generate a first alternating magnetic field based on the direct-current electric energy; the auxiliary switch circuit is used for converting the induction alternating-current electric energy of the primary auxiliary winding into induction direct-current electric energy; the clamping end of the clamping energy storage circuit receives the induction direct-current electric energy to reach the first voltage, and the peak absorption end of the clamping energy storage circuit is connected with the primary winding; when the peak voltage of the primary winding is larger than the first voltage, peak electric energy exceeding the first voltage part is absorbed, and a second alternating magnetic fiel