| 摘要 |
Embodiments of the present disclosure provide a multi-turn coil multiplex circuit. The multi-turn coil multiplex circuit comprises: a multi-turn coil, a transfer switch, a Near Field Communication (NFC) matching circuit, and a camera daughter-board; the transfer switch comprises a public port, a first port and a second port; the multi-turn coil is connected to the public port, the NFC matching circuit is connected to the first port, and the camera daughter-board is connected to the second port. When a camera control signal is present, the connection with the second port is turned on and the multi-turn coil is used as a camera focusing coil in the camera daughter-board; and when no camera control signal is present, the connection with the first port is turned on and the multi-turn coil is used as a NFC antenna in the NFC matching circuit. The embodiments of the present disclosure directly integrate the NFC antenna on a main board, thus avoiding poor contact of the NFC antenna contact point caused by dismounting a battery cover and enhancing stability of the NFC antenna. |
