Current mirror circuit and method
US-2015327338-A1 · Nov 12, 2015 · US
Short protection control circuits and related control methods
US9101033B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9101033-B2 |
| Application number | US-201213666964-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 1, 2012 |
| Priority date | Nov 4, 2011 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 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.
Short protection control circuits and related control methods are disclosed. A disclosed short protection control circuit is adapted for controlling a short protection mechanism providing short protection to several LED chains. The disclosed short protection control circuit has a detection circuit, a first logic circuit and a timer. Coupled to the LED chains, the detection circuit asserts an indication signal when one of the node voltages of the LED chains is lower than an under-current reference. When the indication signal is enabled, the first logic circuit starts blocking the short protection mechanism. The timer times to provide a result when the short protection mechanism is blocked. When the result indicates that the short protection mechanism has been blocked for at least a predetermined time period, the first logic circuit resumes the short protection mechanism.
First claim
Opening claim text (preview).
What is claimed is: 1. A control method for use in controlling a short protection mechanism providing short protection to a plurality of light-emitting diode (LED) chains, wherein a plurality of driving currents flow through the LED chains, the control method comprising: detecting whether at least one of the driving currents encounters an under-current event; blocking a short protection mechanism and resetting a timer when the under-current event is encountered, wherein the shor…
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
- H05B33/089Primary
Electricity · mapped topic
- H05B45/52Primary
Electricity · mapped topic
Cross-Sectional Technologies · 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 US9101033B2 cover?
- Short protection control circuits and related control methods are disclosed. A disclosed short protection control circuit is adapted for controlling a short protection mechanism providing short protection to several LED chains. The disclosed short protection control circuit has a detection circuit, a first logic circuit and a timer. Coupled to the LED chains, the detection circuit asserts an in…
- Who is the assignee on this patent?
- Leadtrend Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification H05B33/089. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 04 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).