| 摘要 |
The present invention relates to a circuit board having a charge coil on both sides and, more specifically, a charge coil structure improving inductance and resistant components by transforming a coil pattern formed on the upper and lower both sides of a board used in a non-connection type wireless charging device. The circuit board having a charge coil includes a coil pattern formed on the upper surface of the board and a second coil pattern formed on the lower surface which is the other side of the board. The first coil pattern is formed in the n number of wire forms by separating a gap between first unit wires. The second coil pattern is formed in the m number of the wire forms by separating a gap between second unit wires. The first coil pattern and the second coil pattern are formed at a gap that a first separation gap and a second separation gap are partially overlapped across the board. Each first unit wire and each second unit wire are electrically connected by a via hole passing through the board. |
