A wireless power transmission method with an adaptive variable receiving coil
A technology of wireless energy transmission and wireless energy transmission, applied in circuit devices, electrical components, etc., can solve problems such as poor electromagnetic compatibility, increase in output voltage of LC resonant circuit, and burnout of circuit boards at the receiving end, and reduce voltage regulation. chip, avoid damaging the circuit board, and improve the effect of overall transmission efficiency
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[0028] First, the R&D personnel use the wireless energy transmission system to measure the size of the TX coil, and use a vector network analyzer to measure its impedance value. After that, the programmer writes programs to the TX coil and RX coil through the 2.4G Bluetooth communication chip, and the specifications of the RX coil are basically consistent with the TX coil through the measurement of the wireless energy transmission system. At this time, use the host computer program to set the predetermined operating frequency and duty cycle through the STM chip. Input the predetermined voltage value to the TX coil through the power supply, and set the current limit value. The RX coil is connected to the load meter, and the resistance value corresponding to the requirements is adjusted.
[0029] Then first slowly change the number of turns and the size parameters of the inner diameter of the RX coil through the MAXWELL 3D simulation software. Then simulate the coupling coeffi...
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