5results about How to "Reduce the inductance value" patented technology

The application belongs to the technical field of switching power supply, and an auxiliary circuit is added between two branches of a traditional two-phase Dickson converter; in a dead time when all main power tubes are closed, the auxiliary circuit can transfer the charge of one branch to another branch, realizes zero-voltage turn-on of all main power tubes, and reduces switching loss.

This invention provides a rod-shaped magnetic core and its preparation method, an inductor and its preparation method, and their applications, belonging to the field of non-destructive testing technology for inductor devices. The invention provides a method for preparing a rod-shaped magnetic core, comprising the following steps: filling a mold hole with nanocrystalline alloy wire along the extension direction of the mold hole; then infiltrating the gaps between the nanocrystalline alloy wire with epoxy resin for curing to obtain the rod-shaped magnetic core; the diameter of the nanocrystalline alloy wire is 0.05–0.2 mm; the diameter of the mold hole is 0.3–0.5 mm. The preparation method of this invention can prepare rod-shaped magnetic cores with a diameter of 0.2 mm or more, and the epoxy resin in this invention enhances the strength of the rod-shaped magnetic core, preventing it from breaking when wound with a coil. Furthermore, the rod-shaped magnetic core of this invention does not have the problems of uneven surface and burn-out layer, and does not reduce the relative permeability of the magnetic core.

The application belongs to the technical field of switching power supply, and relates to a cascaded switching capacitor converter. An auxiliary circuit is added between two branches outside a traditional cascaded converter. In a dead time when all main power tubes are closed, the auxiliary circuit can transfer the charge of one branch to another branch, realize zero-voltage turn-on of all main power tubes, and reduce switching loss.

This application belongs to the field of switching power supply technology, specifically relating to a switched capacitor converter. An auxiliary circuit is added between the two branches to transfer the charge of one branch to the other branch during the dead time when all main power transistors are off, thereby achieving zero-voltage turn-on of all main power transistors and reducing switching losses.

The utility model discloses a kind of Faraday rotator and magneto-optical switch for magneto-optical switch, it is related to optical device technical field, wherein, Faraday rotator includes coil framework, magneto-optical crystal and multiple magnetic field generating components;Magneto-optical crystal is located at coil framework;Multiple magnetic field generating components are connected in parallel, multiple magnetic field generating components are spaced and arranged side by side, and from one end of coil framework, the other end of coil framework is wound, and single-layer solenoid inductance structure is formed;The technical scheme provided by the utility model can solve the problems of poor heat dissipation performance and slow switching speed of existing magneto-optical switch.