| Resonance coupling is an emerging technology in the field of wireless power transmission, this theory put magnetic as its transmission medium then establish a resonant energy transfer based on a channel transmitter and the receiver which achieve high efficiency transmission of energy. Compared with the conventional induction radio transmission and electromagnetic energy transmission, Resonance coupling have father distance and high transmission efficiency.Through theoretical analysis, the following aspects are executed in this paper:First, this paper establish a analysis model based on the equivalent circuit theory of wireless power transmission system via resonance coupling, and analyzed the various parameters which affect the power transmission efficiency and the load power.Secondly, this paper analysis the mathematical model of wireless power transmission through Pspice simulation software and study the structure, principle, and frequency characteristics of wireless power transmission. This paper also study the influence of interference to transmission efficiency, high-frequency electrical power, load power and verified the model by simulation analysis. In addition, paper designed the main circuit model and parameters which including the high-frequency inverter circuit, the switch driver circuit, high frequency resonant coil resistance and high-frequency inductors.Finally, this paper verify the waveform of the system, then analyze the voltage waveform of resonator circuit and the transmitter portion of the transmitter. Paper also verified the phenomena of transmission efficiency decreases as increasing of space. |
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