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.
[1]
Xiuquan Liu,et al.
Study on Techniques of Outside Energy Supply for the Wireless Capsule Endoscope
,
2007,
2007 IEEE International Conference on Control and Automation.
[2]
Huang Ping.
Simulation and Analysis of Loosely Wireless Power Transmission of MEMS in Human Body
,
2008
.
[3]
Robert Puers,et al.
An inductive power link for a wireless endoscope.
,
2007,
Biosensors & bioelectronics.
[4]
Robert Puers,et al.
Inductive powering of a freely moving system
,
2005
.
[5]
Jiang Wei-xiong.
Study on Techniques of Wireless Power Transmission for the MEMS inside Human Body
,
2009
.