Battery pack
US-2024243589-A1 · Jul 18, 2024 · US
Systems and methods for balancing battery cells
US9130378B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130378-B2 |
| Application number | US-201314092357-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2013 |
| Priority date | Nov 5, 2009 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set of cells based on the charging currents. A ratio between a first turn number of a first secondary winding of the secondary windings and a second turn number of a second secondary winding of the secondary windings is determined by a nominal voltage ratio between two corresponding cells of the set of cells.
First claim
Opening claim text (preview).
What is claimed is: 1. A system comprising: a transformer circuit that includes a primary winding and a plurality of secondary windings coupled to a battery pack having a plurality of cells, and that is operable for transforming an input power of said system into a plurality of output currents from said secondary windings to said cells, wherein an input current through said primary winding corresponds to said input power; and a control circuit, coupled to said transformer circui…
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Classifications
- H02J7/56Primary
Electricity · mapped topic
- H02J7/0018Primary
Electricity · mapped topic
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- What does patent US9130378B2 cover?
- In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set of cells based on the charging currents. A ratio between a first turn number of a first secondary winding of the secondary windings …
- Who is the assignee on this patent?
- O2Micro Inc, O2Micro Inc
- What technology area does this patent fall under?
- Primary CPC classification H02J7/56. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).