Pulse transformer

摘要

Disclosed herein is a pulse transformer that includes a drum core having a winding core portion and first and second flange portions, a plate core connected to the first and second flange portions, and a plurality of wires that are wound around the winding core portion. The first and second flange portions and the plate core are ground such that an inductance of the pulse transformer is 350 μH or more when a bias current of 8 mA is applied to the wires.

主权项

1. A pulse transformer comprising:
a drum core that includes a winding core portion, and first and second flange portions that are provided at both ends of the winding core portion, respectively; a plate core that includes a bottom surface having first and second portions, the first portion of the bottom surface facing to a top surface of the first flange portion, and the second portion of the bottom surface facing to a top surface of the second flange portion; first and second wires that are wound around the winding core portion, the first and second wires constituting a primary winding; and third and fourth wires that are wound around the winding core portion, the third and fourth wires constituting a secondary winding, the top surface of the first flange portion, the top surface of the second flange portion, the first portion, and the second portion being ground such that an inductance becomes equal to or higher than 350 μH when a bias current of 8 mA is applied to the first and second wires.