| With the progress of technology, more and more small household electrical appliances, implanted devices and other electronic equipment have been widely used. But energy supply problem has restricted the development of electronic equipment, especially for implanted device. MEMS(Micro-Electro-Mechanic System) is an advanced manufacturing technology platform, which has the advantages of small volume, light weight, low power consumption, good durability, low price, stable performance etc.Aiming at the problems of power supply of implanted devices, this paper has researched on miniature wireless magnetic coupling resonance energy transmission system based on MEMS, and carried out experimental study. Main work is as follows:1. Based on the coupled mode theory, this paper has studied the mode of transmission, transmission theory and mechanism of wireless energy transmission system. And has studied the main factors affecting transmission efficiency through the simulation and analysis, then establishes the structure model of the system.2. Designed the structure of magnetic coupling resonance coils, experiments are carried out to analyze the transmission power and efficiency and comparison under three different experimental environments.3. The paper has designed the magnetic coupling resonance wireless transmission system for implanted devices. The system mainly comprises a rectifying filtering and voltage regulating circuit, a lithium ion battery charging management circuit, information acquisition circuit, transmitting circuit, information receiving display circuit. The system not only can realize the wireless power transmission, but also can monitor the voltage, current, temperature of the battery real-time.4. Based on the MEMS design thought, using Altium Designer6.9 software to draw the system layout and the each module circuit board for system, circuit board contains in vivo module and in vitro module. The system has characteristics of small volume, light weight, compact structure etc. |
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