Smart charging cable and method for operating a portable electronic device
US-9800075-B2 · Oct 24, 2017 · US
Charging system
US10181749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10181749-B2 |
| Application number | US-201715708759-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 19, 2017 |
| Priority date | Sep 21, 2016 |
| Publication date | Jan 15, 2019 |
| Grant date | Jan 15, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A charging system that includes a charging device and a secondary battery device with improved safety is provided. When the secondary battery device has been connected to a charging terminal of the charging device, a DC voltage for inspection is supplied from a DC power supply unit to the charging terminal to detect a DC signal by a DC signal detection unit, and an AC voltage for inspection is supplied from an AC power supply unit to the charging terminal to detect an AC signal by an AC signal detection unit. The secondary battery device is started to be charged only when the value of the DC signal falls within a reference range defined by a resistance value of the secondary battery device and the value of the AC signal falls within a reference range defined by an impedance value of the secondary battery device.
First claim
Opening claim text (preview).
What is claimed is: 1. A charging system comprising a charging device and a secondary battery device charged by the charging device, wherein the charging device comprises: a charging terminal to which the secondary battery device is connected; a DC power supply unit that supplies a DC voltage to the charging terminal; an AC power supply unit that supplies an AC voltage to the charging terminal; a DC signal detection unit that detects a DC signal that varies depending on a resistance value of an object that has been connected to the charging terminal; and an AC signal detection unit that detects an AC signal that varies depending on an impedance value of the object that has been connected to the charging terminal, and when the secondary battery device has been connected to the charging terminal, a DC voltage for inspection is supplied from the DC power supply unit to the charging terminal to detect the DC signal by the DC signal detection unit and an AC voltage for inspection is supplied from the AC power supply unit to the charging terminal to detect the AC signal by the AC signal detection unit, and the secondary battery device starts to be charged only when the value of the DC signal that has been detected falls within a reference range defined by a resistance value of the secondary battery device and the value of the AC signal that has been detected falls within a reference range defined by an impedance value of the secondary battery device. 2. The charging system according to claim 1 , wherein the secondary battery device comprises: a battery cell connected to the charging terminal; and a filter circuit connected to the battery cell. 3. The charging system according to claim 1 , wherein the DC signal detected by the DC signal detection unit is a DC voltage, and the AC signal detected by the AC signal detection unit is an AC voltage. 4. The charging system according to claim 1 , wherein the secondary battery device is mounted on an autonomous moving robot.
Assignees
Inventors
Classifications
the load networks being external to vehicles, i.e. exchanging power with vehicles · CPC title
- H02J7/685Primary
using connection detecting circuits (H02J7/68 takes precedence) · CPC title
The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68) · CPC title
Operations & Transport · mapped topic
Electricity · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10181749B2 cover?
- A charging system that includes a charging device and a secondary battery device with improved safety is provided. When the secondary battery device has been connected to a charging terminal of the charging device, a DC voltage for inspection is supplied from a DC power supply unit to the charging terminal to detect a DC signal by a DC signal detection unit, and an AC voltage for inspection is …
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02J7/685. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 15 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).