The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Design of a Bidirectional Adaptive Coupler for Spread Spectrum Power Line Communications

대역 확산 전력선 통신을 위한 양방향 적응 결합기 설계

  • 유영규 (LS산전 중앙연구소) ;
  • 우대호 (SK텔레시스 연구소) ;
  • 최석우 (전북대 공대 전자정보공학부) ;
  • 김동용 (전북대 공대 전자정보공학부)
  • Published : 2007.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the new power line coupler which is applicable to spread spectrum power line communications. The proposed coupler maintains the adequate value of a capacitor between the transmitter mode and the receiver mode using a switch. In the transmit mode, the relatively high value of the capacitor is chosen to minimize the attenuation of transmitted signals. In the receiver mode, the value of the capacitor is chosen to be small enough so that the coupler attenuates power line noises. This coupler reduced the magnitude distortion due to having a high Q value and the power consumption caused by the AC current flowing into the capacitor. The simulation and measurement results show the improved performance in the transmitter and receiver mode, respectively.

Keywords

References

  1. D. Cooper and T. Jeans, 'Narrowband, Low Data Rate Communications on the Low-Voltage Mains in the CENELEC Frequencies-Part I: Noise and Attenuation,' IEEE Trans. on Power Delivery, vol. 17, pp. 718-723, Jul. 2002 https://doi.org/10.1109/TPWRD.2002.1022794
  2. D. Cooper and T. Jeans, 'Narrowband, Low Data Rate Communications on the Low-Voltage Mains in the CENELEC Frequencies-Part II: Multiplicative Signal Fading and Efficient Modulation Schemes,' IEEE Trans. on Power Delivery, vol. 17, pp. 723-729, Jul. 2002 https://doi.org/10.1109/TPWRS.2002.800942
  3. B. Sklar, Digital Communications: Fundamentals and Applications, 2nd edition, Prentice-Hall, pp. 718-795, 2001
  4. R. Kohno, et al, 'An Adaptive Canceller of Cochannel Interference for Spread-Spectrum Multiple-Access Communication Networks in a Power line,' IEEE J. Sel. Areas Commun., vol. 8, pp. 691-699, May 1990 https://doi.org/10.1109/49.54465
  5. G. Evans, CEBus Demystified: The ANSI/EIA 600 User's Guide, McGraw-Hill, pp. 61-71, 2001
  6. W. T. Lee, D. H, Woo, Y. G. Yu, and Y. C. Lee, 'Implementation of 40kbps Narrowband Powerline Communication Modem using Chirp Spread Spectrum Method,' Trans. KIEE, vol. 54, pp.116-123, Feb. 2005
  7. 박송배, 신호로이론, 문운당, pp. 393-399. 2001
  8. http://www.yitran.com/media/IT800 Line Coupler (IT800- AN -013- R15).pdf
  9. http://www.vacuumschmelze.de/dynamic/ docroot/medialib/documents/pdf/kbproduktblaetter/5024-X044.pdf
  10. 최석우, 윤창훈, 김동용, 최신 회로망 합성과 필터 이론, 홍릉과학출판사, pp. 127-216. 1998