Nowadays, as the electrical devices become smaller, and there are very low-power designs, the wireless powering technics seems to be a good solution for implantable sensors. For these devices the size of batteries are too large, that is why it is reasonable to replace them with a receiver coil. The purpose of this paper is to summarize the different wireless powering solutions, and their possible appliances. Find the parameters which have influence on the maximum amount of power transferred, and on the efficiency of the power transfer. It gives an optimal solution for powering implantable devices. A designed measuring composition for defining the specific characteristics of the inductive coupling power transfer is presented. It demonstrates a miniature test circuit for further measurements.