Circuit control method, battery and its controller and management system, and electrical apparatus
US-2024047988-A1 · Feb 8, 2024 · US
Battery monitor circuit, storage apparatus, electronic apparatus, electric-powered vehicle, and power system
US9178366B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178366-B2 |
| Application number | US-201213529830-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2012 |
| Priority date | Jun 30, 2011 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A battery monitor circuit includes a first monitoring unit for detecting voltages of battery cells in a first group, a second monitoring unit for detecting voltages of battery cells in a second group, and a current cancellation unit for canceling a difference between first and second currents that flow through the first and second monitoring units, respectively. One terminal of a series connection of the battery cells in the first and second groups and one terminal of the first monitoring unit are connected, the other terminal of the first monitoring unit and one terminal of the second monitoring unit are connected, and the other terminal of the second monitoring unit and the other terminal of the series connection are connected. The current cancellation unit is disposed between a connection point between the first and second monitoring units and a middle connection point in the middle of the series connection.
First claim
Opening claim text (preview).
The invention is claimed as follows: 1. A battery monitor circuit comprising: a first monitoring unit configured to detect voltages of battery cells included in a first group; a second monitoring unit configured to detect voltages of battery cells included in a second group; and a current cancellation unit configured to cancel a differential current that is a difference between a first current flowing through the first monitoring unit and a second current flowing through the s…
Assignees
Inventors
Classifications
- H02J7/52Primary
Electricity · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
- H02J7/0014Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US9178366B2 cover?
- A battery monitor circuit includes a first monitoring unit for detecting voltages of battery cells in a first group, a second monitoring unit for detecting voltages of battery cells in a second group, and a current cancellation unit for canceling a difference between first and second currents that flow through the first and second monitoring units, respectively. One terminal of a series connect…
- Who is the assignee on this patent?
- Kumagai Eiji, Sampei Akira, Yanagihara Kazuharu, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02J7/52. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 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).