This invention describes a portable communication device, like a smartphone, that can charge wirelessly. It uses two internal circuit boards: one for the charging electronics and another with an antenna and a temperature sensor. The antenna, which receives the wireless power, is connected to the charging system, and the sensor is placed right next to it to monitor its temperature, all housed within the device's casing.
Why it matters: Since 2018, wireless charging has become faster and more widespread in portable devices. The increased power delivery makes robust thermal management, as described here, more critical for safety and performance.
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