A Study on the Active EMI Filter for LED Driver

LED 구동장치용 능동 EMI 필터의 실현

Lee, Dong-Ho;Choi, Min-Whan;Park, Chong-Yeun

  • Received : 2014.10.28
  • Accepted : 2014.12.02
  • Published : 2015.02.28


Recently, LED is being used as various applications such as home lightings, work lightings and so on. EMI noise generated from LED driver have become a problem according to increase the use of LED. In this paper, Active EMI filter composed active and passive components is discribed as a method of solving a problem of EMI. The proposed filter is applied to the 160W LED load to verify performance experimentally. To compare the performance, We did an experiment using the proposed filter and the passive filter on the same 160W LED load and Driver System. As a result, The proposed Active EMI filter attenuated Conduction EMI noise better than any existing passive filter.


Electromagnetic Interference;Passive EMI Filter;Active EMI Filter


  1. Richard Lee Ozenbaugh. Chul-Su Kim, Byung-Guan Park. "Design and Application of EMI Filter".. Korea Radio Promotion Association. 2008.
  2. Nam Kim, In-Suck Kim, Jung-Ho Kim, Won-Seo Cho, Yeun-Chun Jung, Gye-Jea Im, Ku-Nyeon Kim. Standardization Research for EMC (Electromagnetic Compatibility). Korea Radio Promotion Association. 2009.
  3. Jin-Wan Yoo, In-Ung Jeon, Dong-Ho Lee, Dong-Seok Shin, Chong-Yeun Park. Simulation of the Active EMI Filter for a DM Noise from LED Driver . The Korean Institute of Illuminating and Electrical Installation Engineers Spring Conference 2013. 2013.
  4. Sun-Bea Bang, Chong-Yeun Park. Development of EMI Filter for Electronic Ballasts for Fluorescent Lamps. Master's Thesis of Kangwon Univ. 2002.
  5. Yung-Cheol Yang, Ji-Hun Hong, Won-Kyun Han. Active Harmonic Filters and Static Reactive Power Compensation Device. The Korean Institute of Electrical Engineers Fall Conference 2004. 2004. 11.
  6. Son Yo-Chan, Seung-Ki Sul. A Novel Active Common-mode EMI Filter for Mitigating Conducted EMI. The Korean Institute of Power Electronics Journal. 2002. 7.
  7. Yo-Chan Son, Seung-Ki Sul. Generalization of Active Filters for EMI Reduction and Harmonics Compensation. IEEE TRANSACTIONS ON APPLICATIONS. 2006. VOL 42.
  8. Min Zhou, Sicong Lin, Carl Yan, Wei Chen, JianPing Ying. Original CM Noise Suppression in SMPS, Delta Power Electronics Center. 2012.
  9. SN10503 Datasheet. Texas Instruments. 2009.


Grant : 전자의료기기용 모듈형 Active EMI Filter

Supported by : 한국산학연협회