Patent ID: 8885314

Claim:
A lightning protective high-voltage divider, comprising: a printed circuit board; an impedance coil located on said printed circuit board and having one end being coupled to a signal input terminal and the other end being coupled to the ground, said signal input terminal is a cable television radio frequency signal input terminal; a coupling capacitor located on said printed circuit board and having one end being coupled to said signal input terminal; a transformer located on said printed circuit board and having a primary coil and a secondary coil, wherein one end of said primary coil being coupled to the other end of said coupling capacitor, the other end of said primary coil being grounded, said secondary coil being coupled to at least a signal output terminal, so the input signal inputted by said signal input terminal being enabled to be coupled to said signal output terminal through said primary coil and said secondary coil; wherein said impedance coil, said coupling capacitor, and said transformer are located on said printed circuit board; wherein, when a lightning surge current occurs, said impedance coil is located on the printed circuit board and guides the lightning surge current to the ground, thereby protecting said coupling capacitor from being damaged.