3results about How to "Increase saturation current" patented technology

This invention belongs to the field of electronic component technology and discloses an inductor structure and its preparation method. The inductor structure includes: a base with mounting holes; a permanent core rod installed in the mounting holes of the base; a coil winding wound around the permanent core rod, with at least a portion of the free end of the coil winding folded around the surface of the base, the free end serving as an electrical connection portion for electrical connection with an external circuit; and a package tightly encapsulating the permanent core rod, coil winding, and base, with the electrical connection portion located on the outside of the package. The preparation method of the inductor structure includes the following steps: assembling a temporary core rod and base, winding the coil winding, processing the electrical connection portion, folding and fixing the coil winding, replacing the core rod, and processing into a finished product in a molding die. The above-mentioned inductor structure preparation method is simple to operate and has simplified steps, which shortens the production cycle while improving the yield rate of inductor products, resulting in low product loss and low impedance.

A GIS electromagnetic voltage transformer field induction withstand voltage test system and method, including an electromagnetic voltage transformer secondary side winding including an auxiliary winding and a plurality of non-assisted windings; a variable frequency power supply unit connected with the electromagnetic voltage transformer secondary side auxiliary winding, for outputting a continuous adjustable sine wave voltage; a tunable resonance compensation inductance unit containing a plurality of inductance modules, each inductance module being respectively connected in parallel with an electromagnetic voltage transformer secondary side winding, and the inductance of each inductance module being adjustable; a multi-parameter monitoring unit for respectively collecting voltage effective value, current effective value and power factor data of each secondary side winding in real time; and an intelligent control unit for dynamically adjusting the output frequency of the variable frequency power supply unit and the inductance of the tunable resonance compensation inductance unit according to the data monitored by the multi-parameter monitoring unit. The application ensures accurate conversion of primary side withstand voltage value and improves the reliability of insulation test.

The utility model relates to the technical field of high-saturation power inductors, in particular to a laminated power inductance coil. A laminated power inductance coil comprises an identification layer, a conductive coil, a first external electrode, an insulating layer, a filling layer and a second external electrode, the identification layer is located on a second surface, the first external electrode is located on a first surface or extends from the first surface to a fifth surface, and the second external electrode is located on the first surface or extends from the first surface to a sixth surface. The length of the insulating layer is consistent with that of the external electrode on the first surface, the insulating layer is provided with at least one conductor hole which is connected with the upper and lower conductive coils, the lead-in electrode is connected with the first external electrode, and the lead-out electrode is connected with the second external electrode. According to the utility model, the iron-nickel material and the iron-silicon-chromium material are innovatively combined, so that the problem of poor insulativity of the nickel soft magnetic material is solved, and meanwhile, the situation of magnetic leakage is prevented.