Invention Grant
- Patent Title: Method and apparatus for reduction of ripple current
-
Application No.: US16904684Application Date: 2020-06-18
-
Publication No.: US11114932B1Publication Date: 2021-09-07
- Inventor: Slobodan Gataric , Predrag Hadzibabic
- Applicant: GE AVIATION SYSTEMS LLC
- Applicant Address: US MI Grand Rapids
- Assignee: GE AVIATION SYSTEMS LLC
- Current Assignee: GE AVIATION SYSTEMS LLC
- Current Assignee Address: US MI Grand Rapids
- Agency: McGarry Bair PC
- Main IPC: H02M1/14
- IPC: H02M1/14

Abstract:
A ripple current reduction circuit is disclosed. The circuit includes a set of first coupled inductors, each comprising a primary winding configured to receive at a first end a respective phase voltage, and a secondary winding. The circuit also includes a set of second coupled inductors and a set of first capacitors, each first capacitor having an upstream end and a downstream end, wherein the set of first capacitors are coupled together at the downstream end to define a first node. The circuit further includes a set of auxiliary circuits each corresponding to a respective phase voltage, and coupled between the second end of the primary winding of a respective first inductor and the first node, wherein each auxiliary circuit comprises a respective second coupled inductor, a respective first capacitor, and the secondary winding of a respective first coupled inductor coupled in series.
Information query