Patent ID: 9712049
Date: 2017-07-18
CPC Classifications: H02M

Claim:
1. A power converter comprising: a housing that is grounded; a power converter circuit having a portion that generates AC magnetic field having a magnetic flux and configured to perform power conversion of input power into output power; an external terminal electrically connected to the power converter circuit for connection of an external device to the power converter circuit; a first capacitor having first and second electrodes, the first electrode being connected to the external terminal and the second electrode being connected to the housing; and a second capacitor having first and second electrodes, the first electrode being connected to the external terminal and the second electrode being connected to the housing, the first capacitor, the external terminal, the second capacitor, and the housing being arranged to provide a conductive loop having: a first region through which the magnetic flux of the AC magnetic field penetrates to induce a first noise current flowing through the conductive loop; and a second region through which the magnetic flux of the AC magnetic field penetrates to induce a second noise current flowing through the conductive loop, the first noise current flowing through the conductive loop being opposite in direction from the second noise current flowing therethrough, resulting in the first noise current and the second noise current cancelling each other out.