Washing machine with a discoloration reservoir and method for washing textiles in such a washing machine
US-2016369447-A1 · Dec 22, 2016 · US
Device and method for dimming light sources
US8933639B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933639-B2 |
| Application number | US-71225710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2010 |
| Priority date | Feb 27, 2009 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of the power supply towards the light source; a capacitance located downstream of the switch being traversed by a charge current as the switch is switched on; and a pre-charge stage interposed between the switch and the capacitance; the pre-charge stage being configured to limit to a given value the charge current.
First claim
Opening claim text (preview).
What is claimed is: 1. A device for dimming a light source, said device comprising: a two-wire power supply line having interposed therein a switch for controlling transfer of said power supply towards said light source; a capacitance located downstream of said switch being traversed by a charge current as said switch is switched on, wherein said switch is opened and closed using a PWM dimming control signal; a driver for driving said light source, wherein said capacitance is…
Assignees
Inventors
Classifications
Electricity · mapped topic
- D06F39/006Primary
Textiles & Paper · mapped topic
- H05B45/375Primary
Electricity · mapped topic
Mechanical Engineering · mapped topic
Textiles & Paper · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8933639B2 cover?
- In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of the power supply towards the light source; a capacitance located downstream of the switch being traversed by a charge current as the switch is switched on; and a pre-charge stage interposed between the switch …
- Who is the assignee on this patent?
- Bianco Francesco, Bizzotto Alessandro, De Anna Paolo, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification D06F39/006. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jan 13 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).