Oppo's wireless charging mechanism: the three contacts on the side of the mobile phone are wireless charging connection points. When wireless charging is realized, the mobile phone needs to wear a charging protective cover, and the receiving circuit in the charging protective cover is connected with the three contacts of the mobile phone.
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The charging base is connected to the power adapter through USB, and there is a transmitting circuit in the charging base; Wireless charging can be achieved by placing the phone with the charging case directly on the charging base.
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OPPO Finder (X907) Wireless charging of mobile phones works:
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Using the physics principle of \"resonance\" - two objects that vibrate at the same frequency can transmit energy efficiently.
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1. The electrical energy in the transmission line is passed into the antenna made of copper.
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2. The antenna vibrates at a wavelength of 10 MHZ, producing electromagnetic waves.
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3. The energy from the antenna travels up to 2 meters (6.5 feet) away.
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4. The laptop computer, which also vibrates at 10 megahertz, receives the current and the energy is charged into the device.
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5. Energy that is not converted to a laptop is not reabsorbed by the antenna. People and other objects that cannot generate a 10 MHZ resonance will not interfere with it.