According to the problems about security risks

as well as energy transfer instability for hot spot temperature in power equipment and the systems of current on-line monitoring

a miniature

low cost

high reliability

easy installation and maintenance communication power supply that based on electromagnetic coupling was designed

it can provide a lasting and stable power output.Firstly

determined the dimension of the receiving coil.And then

optimization design was made to carry out the optimal length

width

height of the power supply and the radius

number of turns of the coil;a simulation for the system was studied through Matlab.Optimization and simulation results show that the power in the low-frequency high-pressure conditions

load power is about 10.18 W

the system can transfer energy at the range of approximately 2% fluctuation.It achieves the objective of the miniaturization

low-cost and providing lasting and stable electricity output.