Methods and systems for an automated design, fulfillment, deployment and operation platform for lighting installations
US-12135922-B2 · Nov 5, 2024 · US
Driving current generation circuit, LED power supply module and LED lamp
US9220134B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9220134-B2 |
| Application number | US-201213540806-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 3, 2012 |
| Priority date | Jul 4, 2011 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A driving current generation circuit includes a semiconductor device configured to operate with a variable voltage as a reference voltage, a driving current generator configured to generate a driving current for driving an LED (Light Emitting Diode) based on an instruction received from the semiconductor device, and a dimming voltage converter configured to generate a second dimming voltage set based on the variable voltage from a first dimming voltage set based on a ground voltage, wherein the semiconductor device performs a driving control of the driving current generator based on the second dimming voltage.
First claim
Opening claim text (preview).
What is claimed is: 1. A driving current generation circuit comprising: a semiconductor device configured to operate at a voltage level between a power source voltage and a variable voltage, the variable voltage being lower than the power source voltage; a driving current generator configured to generate a driving current for driving an LED (Light Emitting Diode) based on an instruction received from the semiconductor device; and a dimming voltage converter configured to gener…
Assignees
Inventors
Classifications
- H05B45/10Primary
Electricity · mapped topic
- H05B33/0815Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9220134B2 cover?
- A driving current generation circuit includes a semiconductor device configured to operate with a variable voltage as a reference voltage, a driving current generator configured to generate a driving current for driving an LED (Light Emitting Diode) based on an instruction received from the semiconductor device, and a dimming voltage converter configured to generate a second dimming voltage set…
- Who is the assignee on this patent?
- Niikura Eiichiro, Kitaga Kazuaki, Yamada Satoshi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H05B45/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 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).