Abstract
In this paper, a compact wireless energy and data transmission device which can be used on the remote projectile is described. This device uses magnetic field generated by the coupled coil to receive the energy and data and transfers the internal data. These functions above can be realized by operating the control circuit in different modes, which requires only one coil in the projectile. In energy transmission mode, energy can be transferred into the projectile wirelessly, as well as the external data by data encoding technology. High-frequency magnetic field is generated by internal device when the internal data is delivered to the external receiver coil. Interference between the energy and data transmission can be avoided by adjusting the data resonant frequency which is different from the energy transfer frequency by changing the resonant circuit topology and the internal capacitance. The device works at zero voltage switching mode, and produces lower loss, which is beneficial for improving the efficiency. The experiment results show that the device can transfer energy at 1MHz, and internal data at 500 kHz.
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