Wireless charging of lighting gadgets using low Q resonant coupling

  • Authors:

  • Hema Ramachandran;G. R. Bindu

  • Affiliations:

  • College of Engineering, Trivandrum, Kerala, India;College of Engineering, Trivandrum, Kerala, India

  • Venue:
  • Proceedings of the International Conference on Advances in Computing, Communications and Informatics
  • Year:
  • 2012

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Abstract

Wireless power transfer for lighting gadgets on a table top using low Q resonant coupling is realized. Using distributed capacitances across the transmitter and receiving coils and the inherent resistances of the wires, the coil acts as a tuned LC circuit. Since the secondary coil is resonant with the primary coil at a common frequency of 400 KHz, power is transmitted between the coils in the near field range and an efficiency of 20% is achieved.