Constant current charging device
US-2016344201-A1 · Nov 24, 2016 · US
Rechargeable battery charging method, charging control apparatus, and battery pack
US9018902B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018902-B2 |
| Application number | US-201213536463-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2012 |
| Priority date | Jun 29, 2011 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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When maximum cell voltage remains at or below a maximum current control voltage (4200 mV), which is below the start-full-charge detection voltage (4210 mV), three consecutive times with 250 ms periodicity, set current is increased one level (128 mA). When maximum cell voltage is higher than the start-full-charge detection voltage three consecutive times with 250 ms periodicity, set current is reduced. When maximum cell voltage is higher than the start-full-charge detection voltage and charging current remains below 384 mA two consecutive times with 250 ms periodicity, the rechargeable battery is determined to be fully-charged.
First claim
Opening claim text (preview).
What is claimed is: 1. A rechargeable battery charging method for detecting battery voltage as a time-series and charging a rechargeable battery with a first set current, the method comprising: periodically reading a detected voltage by a control section of a computer device; setting a first current value to charge the rechargeable battery at a start of charging by the control section, wherein the first current value is set independent of the detected voltage; detecting a firs…
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Electricity · mapped topic
- H02J7/953Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02J7/0081Primary
Electricity · mapped topic
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- What does patent US9018902B2 cover?
- When maximum cell voltage remains at or below a maximum current control voltage (4200 mV), which is below the start-full-charge detection voltage (4210 mV), three consecutive times with 250 ms periodicity, set current is increased one level (128 mA). When maximum cell voltage is higher than the start-full-charge detection voltage three consecutive times with 250 ms periodicity, set current is r…
- Who is the assignee on this patent?
- Kobayashi Masayuki, Kaino Tomomi, Sanyo Electric Co
- What technology area does this patent fall under?
- Primary CPC classification H02J7/953. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 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).