Patent ID: 8680948

Claim:
A band elimination filter comprising a plurality of capacitors connected in parallel between a first terminal and a second terminal of an electromagnetic noise source, said electromagnetic noise source producing voltage fluctuations on a main connecting lead which is connected to said first terminal of the electromagnetic noise source, said plurality of capacitors being electrically connected to said main connecting lead at respectively corresponding branch connection points; wherein: with respect to each of said plurality of capacitors, an inductance of a first circuit path is predetermined to be less than an inductance of a second circuit path, said first circuit path extending from the corresponding branch connection point of each of said plurality of capacitors to said second terminal of the electromagnetic noise source via each of said plurality of capacitors, and said second circuit path extending from said corresponding branch connection point to said first terminal of the electromagnetic noise source; said band elimination filter comprises at least one resistor connected in series with a corresponding one of said plurality of capacitors; and a resistance value of said at least one resistor is predetermined to be greater than a value of an equivalent series resistance value of said corresponding one of said plurality of capacitors.