CIRCUIT BOARD FORMED ON BOTH SIDES OF THE CHARGE COIL

摘要

The present invention relates to a circuit board having a charge coil on both sides and, more specifically a charge coil structure forming a coil pattern, which is formed on both upper and lower sides of a board used for a non-contact type wireless charging device, in an electrically connected parallel circuit with a charge via hole. The circuit board has a firs coil pattern formed on the upper surface of the substrate 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 numbers of the wire forms by separating a gap between second unit wires. Each first unit wire and each second unit wire are electrically connected by the via hole passing through the board.