To reduce a generated noise level, to shift a resonance point and to reduce the noise level even in an excessive frequency by winding a wire so that it is over a winding partition wall, changing an inter-winding capacity and changing power impedance.

One end of plus-side winding wire 4 is wound in a winding part 3f from a terminal 6a and is wound at an adjacent winding part 3g so that it is over a winding partition wall 3j. It is wound in the winding part 3f so that it is over the winding partition wall 3j and the winding wire 4 crosses again and it is connected to the terminal. Then, a minus-side winding wire 5 is wound so that it is over a winding partition wall 3k and it crosses the winding wire 5 between the winding parts 3i and 3h from a terminal 6b and it is connected to the terminal. The wires are alternately wound to the winding parts 3f-3i and a winding method is changed. Then, a distribution constant is changed, winding capacity is changed, and a resonance point between the inductance of a line and inter-line capacitance is shifted.