Power supply device and lighting equipment provided with power supply device
US-9226357-B2 · Dec 29, 2015 · US
Dimmable LED reading light unit, arrangement of power supply and dimmable LED reading light unit, method of operating a dimmable LED reading light unit in a power supply system, and method of replacing a dimmable light unit by a dimmable LED reading light unit
US9192012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9192012-B2 |
| Application number | US-201414200841-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 7, 2014 |
| Priority date | Mar 7, 2013 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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Abstract
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A dimmable LED reading light unit, in particular for a passenger transportation vehicle, such as an airplane, a bus or a ship, comprises an input which is connectable to a potentiometer that outputs a direct voltage having a voltage intensity corresponding to a selected potentiometer position; a load current source being configured to generate a predetermined load current; a current controller providing an operating current for operating at least one LED; and an electronic measuring and control unit; wherein the load current source and the current controller are connected to the input in parallel.
First claim
Opening claim text (preview).
The invention claimed is: 1. A dimmable LED reading light unit, in particular for a passenger transportation vehicle, comprising an input for receiving a direct voltage from a potentiometer that outputs the direct voltage having a voltage level corresponding to a selected potentiometer position; a load current source which is configured to generate a predetermined load current; a current controller providing an operating current for operating at least one LED connected thereto…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Operations & Transport · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9192012B2 cover?
- A dimmable LED reading light unit, in particular for a passenger transportation vehicle, such as an airplane, a bus or a ship, comprises an input which is connectable to a potentiometer that outputs a direct voltage having a voltage intensity corresponding to a selected potentiometer position; a load current source being configured to generate a predetermined load current; a current controller …
- Who is the assignee on this patent?
- Goodrich Lighting Systems Gmbh
- What technology area does this patent fall under?
- Primary CPC classification H05B33/0848. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 17 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).