A Transcutaneous Inductive Charging System Design For Implantable Electronic Device

The implantable device is a kind of electronic device embedded in the organism or the human body. With the rapid development of microelectronic technology and signal processing technology, the implantable electronic device is more and more widely used in the clinical medicine. For practical implantable electronic system, the long-term supply of power supply is an important problem. But the battery usually used at present should be replaced through the surgery when it is exhausted. This will aggravate not only the patient's economical burden but also his pains. Transcutaneous energy transmission is a popular topic today and it is a novel type of power supply for implantable device.This thesis adopts transcutaneous transformer based on its circuit model. Firstly, we discussed the design basis of the transformer parameter such as magnetic core material, coil number. After that, we designed transcutaneous charging system based on switching power technology and contactless energy transmission technology. This thesis is made up of transcutaneous energy transmission, contactless communication and charging management.1. Transcutaneous energy transmission consists of switching circuit, transcutaneous transformer and rectification circuit, which is the basis of energy contactless transmission.2. The wireless communication is accomplished by RF module, and it provides the channel for exchanging message.3. Charging management includes control, monitor and protection. The charging system designed in the thesis resolved the disposable problem of the power supply, and it will have profound significance and wide application prospect.