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US 7,868,724 B2Granted
Method for suppressing common mode noise
AssigneeDelta Electronics, Inc.
InventorsLin Sicong, Zhou Min, He Jun Ping, Wei Chen, Jianping Ying
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AssigneeDelta Electronics, Inc.
InventorsLin Sicong, Zhou Min, He Jun Ping, Wei Chen, Jianping Ying
Estimating the term…
The present invention discloses a power converter with low common mode noise. The power converter having a primary side and a secondary side, comprises a transformer having a primary winding and a secondary winding, and at least one electrostatic shield disposed between the primary winding and the secondary winding, wherein the electrostatic shield is configured with partial first region of the primary winding and partial second region of the secondary winding such that the electrostatic shield partially shields with the primary winding and the secondary winding to reach the purpose of suppressing the common mode noise. In addition, another method can be used to reduce the common mode noise of a power converter having primary side and secondary side, which is adding some additional impedance between the static points and jump points of the primary side and secondary side.
A power converter having a primary side and a secondary side, comprising a transformer having a bobbin, a primary winding and a secondary winding, and at least one electrostatic shield configured between said primary winding and said secondary winding, wherein said electrostatic shield partially shields a first region of said primary winding and partially shields a second region of said secondary winding, and wherein said electrostatic shield has width-orientation gap region x, y;
Dependencies are inferred from the claim text.