Device for driving light emitting diode, and light emitting module including same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Jan 21, 2016
filing date -
Feb 6, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
One embodiment relates to a device for driving a light emitting diode, the device controlling a plurality of light emitting diode arrays connected in series, and comprising: a rectifying unit for rectifying an alternating current signal so as to output the rectified signal; and a control unit for sensing the level of the rectified signal, comparing the sensed level of the rectified signal with a reference voltage, and aligning a first group among the plurality of light emitting diode arrays and a second group among the plurality of light emitting diode arrays in series or in parallel on the basis of the comparison result, wherein the control unit successively drives the light emitting diode arrays of the first and second groups connected in parallel or successively drives the light emitting diode arrays of the first and second groups connected in series on the basis of the magnitude of the sensed level of the rectified signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully