POWER CONVERTER

摘要

Provided is a power converter in which a magnetic core of a noise filter can be prevented from magnetic saturation and the noise filter can be downsized. A noise filter 140 provided in a power converter includes: a magnetic core 1 formed with a single through-hole 1A and forming a closed magnetic circuit; first wiring 11 having one end 81 connected to a power conversion circuit and the other end drawn out from the second opening 3, and running through the through-hole 1A from one first opening 2 to the other second opening 3; second wiring 21 having one end connected to the other end of the first wiring 11 and the other end 82 drawn out from the first opening 2 as a filter output end, and running through the through-hole 1A from the second opening 3 to the first opening 2; a first capacitor 41 provided between the ground and a connecting portion 31 of the first wiring 11 and the second wiring 21; and the second capacitor 51 provided between the other end 82 of the second wiring 21 and the ground.

主权项

1. A power converter, comprising:
a switching circuit for power conversion including a switching device; and a noise filter provided on a direct current side of the switching circuit and configured to remove noise, wherein the noise filter includes: a magnetic core formed with a single through-hole and forming a closed magnetic circuit; first wiring having one end connected the switching circuit and the other end drawn out from a second opening, and running through the through-hole from one first opening to the other second opening; second wiring having one end connected to the other end of the first wiring and the other end drawn out from the first opening as a filter output end, and running through the through-hole from the second opening to the first opening; a first capacitor provided between ground and a connecting portion of the first wiring and the second wiring; and a second capacitor provided between the other end of the second wiring and the ground.