| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device and a structure of a printed circuit board thereof that can reduce electromagnetic interference in the electronic device.SOLUTION: A structure of a printed circuit board is used in a switching power supply of an electronic device, which includes an inductor repeating charges and discharges. The printed circuit board on which a conductive metal surface is arranged is used in providing earth terminals to all electronic elements in the printed circuit board by conducting the conductive metal surface to an earth point of the printed circuit board; where two platforms are arranged at intervals in a place corresponding to a part in which the inductor of the printed circuit board is arranged, and the conductive metal surface located at the place corresponding to the inductor between the two platforms is cut off so as to space the two platforms to be insulated. |
