PSE certification is Japan's mandatory safety certification to prove that motor electronics have passed the DENAN Law or international IEC safety standards. The Japanese DENTORL Act (Electrical Device and Material Control Act) stipulates that 498 kinds of products must pass safety certification when entering the Japanese market. Among them, 165 kinds of A-type products should obtain the diamond-shaped PSE mark, and 333 kinds of B-type products should obtain the round PSE mark.