Recently, at-home workouts, which allows people to exercise easily and comfortably at home without going to the gym, has been in the spotlight. Accordingly, a lot of household equipment is produced, but weight exercise equipment is limited in use at home because of its heavy weight or volume. Therefore, this paper proposes a new form of exercise equipment that can be used at home by transforming the exercise equipment used in the fitness center. The proposed mechanism replaces the weight part of the strength exercise device, which is the key to weight control, with an electric motor. Three major muscle exercise instruments (long pull machine, curl cable machine, and let down machine) were analyzed by dynamic analysis using a multipurpose dynamic program (DAFUL). This shows that the proposed equipment can perform various sports. Therefore, the proposed mechanism is expected to be applicable at home, and this study is expected to be rapidly mass-produced by emphasizing practicality.

다이오드 정류기가 AC-DC 컨버터로 산업현장에서 널리 응용되고 있다. 그러나 입력전류에 많은 저차고조파가 포함되어 전력변환 장치의 공급전압을 왜곡시켜 전력의 품질을 저하시키므로 이를 완화시킬 수 있는 적절한 설비가 필요하다. 이러한 문제점들을 개선하기 위해 본 논문에서는 정류기의 출력단에 보조 전원장치를 설치하여 고조파를 저감하는 장식을 제안하였다.