Bluetooth control-based wireless electric energy transmission apparatus

Abstract

The invention relates to a Bluetooth control-based wireless electric energy transmission apparatus. A rectifying module converts mains supply into a direct current to be sent to a high-frequency inversion module; a Bluetooth module in the high-frequency inversion module receives a signal from a receiving end and performs judgment to output a control signal to a driving module to control operation of the inversion module; the inversion module outputs a high-frequency alternating current to be transmitted outwards through modes of a transmitting inductive coil and capacitive resonance; an electromagnetic receiving module receives energy, and the energy is converted into a direct current through a rectifying and filtering module to be output to an auxiliary power supply module; the auxiliary power supply module converts a voltage into a voltage which is required by a load and a chip; and a sampling module samples the voltage and current at the input end of the auxiliary power supply module, processes the sampled voltage and current and transmits the processed voltage and current through the Bluetooth module at the receiving end. An E type inversion circuit is adopted, so that the advantages of simple circuit, easy control, low cost and the like can be achieved; and in addition, after Bluetooth control is added, no-load loss can be lowered, overvoltage current and near-distance protection can be realized, the transmission efficiency can be improved, and the problems existing in multi-load voltage matching and the like can be solved.

Description

technical field [0001] The invention relates to a wireless power transmission technology, in particular to a wireless power transmission device based on Bluetooth control. Background technique [0002] With the advancement of information technology and the increasing popularity of various portable and wearable electronic devices, the various shortcomings of the traditional wired power supply method are becoming more and more obvious. For example, the power interface needs to withstand frequent plugging and unplugging, and the loss of power cords and contacts will directly affect reliability and safety; portable devices are getting smaller and smaller, and the requirements for aesthetics are getting higher and higher, and there is even no redundant space Provide charging interface; With the increasing number of portable electronic devices, various chargers and charging cables bring great confusion to people's lives. [0003] Wireless power transmission technology was born to...

AI Technical Summary

Problems solved by technology

However, in the application of magnetically coupled resonant WPT, Class E inverters are very susceptible to the influence of parameters such as load and magnetic coupling coil coefficients, and there are problems such as damage to the switch tube and serious heat generation.

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