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Projector 회로 소음 및 진동 저감의 실험적 연구
최영수(Youngsoo Choi),송근영(Keunyoung Song),이종권(Jongkwon Yi),오홍렬(Honglyeol Oh),이승규(Seunggyu Lee) 한국소음진동공학회 2013 한국소음진동공학회 학술대회논문집 Vol.2013 No.4
This paper deals with noise reduction on a light source driving board in a projector. We analyze causes of noise/vibration in the circuit with the present increasing use of LD and LED driving boards. The main source of noise is the MLCC in the driving board. Our aim is to investigate how the mechanical arrangement of the circuit elements affects noise reduction. The result of our experiment shows that noise can be reduced by symmetrical arrangement and slots in PCB. This result is expected to facilitate a variety of applications for manufactures without a need to change circuit elements.
최영수(Choi, Youngsoo),송근영(Song, Keunyoung),이종권(Yi, Jongkwon),오홍렬(Oh, Honglyeol),이승규(Lee, Seunggyu) 한국소음진동공학회 2013 한국소음진동공학회 논문집 Vol.23 No.6
This paper deals with noise reduction on a light source driving board in a projector. We analyze causes of noise/vibration in the circuit with the present increasing use of LD and LED driving boards. The main source of noise is the MLCC in the driving board. Our aim is to investigate how the mechanical arrangement of the circuit elements affects noise reduction. The result of our experiment shows that noise can be reduced by symmetrical arrangement and slots in PCB. This result is expected to facilitate a variety of applications for manufactures without a need to change circuit elements.