Detection of an led module
US-2015373811-A1 · Dec 24, 2015 · US
Power supply for illumination and luminaire
US8941318B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941318-B2 |
| Application number | US-201213480790-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2012 |
| Priority date | Feb 13, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 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.
According to one embodiment, a luminaire includes a light-emitting module, a first lighting circuit and a back-flow preventing circuit. The light-emitting module includes a light-emitting element and a capacitive element. The first lighting circuit is supplied with power from the first power supply and is configured to activate the light-emitting element. The back-flow preventing circuit interrupts current flowing in a direction from the capacitive element to the first lighting circuit.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply for illumination, comprising: a first lighting circuit to convert and output power supplied from a first power supply; a back-flow preventing circuit that is connected to the first lighting circuit and configured to interrupt a current flowing back to an output side of the first lighting circuit from a light-emitting module that is to be connected thereto; a second lighting circuit to convert and output power supplied from a second power s…
Assignees
Inventors
Classifications
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 US8941318B2 cover?
- According to one embodiment, a luminaire includes a light-emitting module, a first lighting circuit and a back-flow preventing circuit. The light-emitting module includes a light-emitting element and a capacitive element. The first lighting circuit is supplied with power from the first power supply and is configured to activate the light-emitting element. The back-flow preventing circuit interr…
- Who is the assignee on this patent?
- Nakajima Hiromichi, Tsuji Toshio, Kamata Masahiko, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H05B45/50. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).