NON-INDUCTIVE CHOKE COIL

摘要

A non-inductive choke coil is provided to increase an insulation life span of a coil and to decrease a thermal loss due to an eddy current by reducing a surge and a noise. An N-inductive coil winding wire and an S-inductive coil winding wire are wound around a coreless type magnet circuit uniformly and differentially, and are connected in parallel and in series. The coreless type magnet circuit has a core type magnet circuit and a coil. The N-inductive coil winding wire is wound to induce an N-polarity. The S-inductive coil winding wire is wound to induce an S-polarity. Parallel non-inductive choke coils(43,44,45) are connected to a front end and a rear end of a load and an operational coil. A surge and a noise are reverse and offset each other when the surge and noise flow into the N-inductive coil winding wire and S-inductive winding wire of the parallel non-inductive choke coils(43,44,45). A series non-inductive choke coils(41,42) are connected to a front end and a rear end of a load and an operational coil. The N-inductive coil winding wire and S-inductive winding wire of the series non-inductive choke coils(41,42) are connected in series. A surge and a noise are reverse and offset each other by a non-inductive magnetic flux induced when the surge and noise flow along the winding wire. If the N-inductive coil winding wire and S-inductive winding wire of the non-inductive choke coils are wound differentially, and are connected in series and parallel, the non-inductive choke coils prevent a magnetic saturation and reduce a current ripple by inducing a magnet flux differentially based on a differential winding ratio.