Design of Three-Dimensional Wireless Power Receiving Coil for MEMS
In this paper, a micro three-dimensional wireless power receiving coil is designed and powered by a set up wireless energy transmission system. Energy receiving performances of the receiving coil is studied. By experiments, coupling coefficients between the transmitting coil and each winding of the receiving coil are caculated at different attitudes. The experimental results confirm that the receiving coil can receive energy from three orientations and three orthometric windings can compensate each other effectively at different attitudes. Then a micro rectifier and regulator circuit are designed and fabricated which is used for a self-made camera system. Based on this, the actual output voltage is measured. The experimental results verify that the efficiency and stability of the three-dimensional receiving system can meet practical application.
Y. Li et al., "Design of Three-Dimensional Wireless Power Receiving Coil for MEMS", Advanced Materials Research, Vols. 383-390, pp. 5569-5575, 2012