Paper Abstract and Keywords |
Presentation |
2005-02-09 10:00
A Drive Circuit for LED with Constant-Current Control Kosuke Morihori, Yoichi Ishizuka, Hirofumi Matsuo (Ngasaki Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recently, white LED with an excellent feature such as low power consumption and long life is paid to attention as a new lighting system. A piece of LED is small, and brightness is related to constant current. Therefore, It is necessary to connect two or more pieces for enough and certain constant luminance. The series connection is more suitable than the parallel connection because of respect of the number of parts and efficiency as connected method. Because the series connection can suppress the difference of the brightness of each LED compared with the parallel connection that needs the ballast resistance that adjusts the difference. However, the series connection needs constant current to the breakdown. Then, this paper presents an analysis of the drive circuit for LED with constant-current control of a back and a boost DC-DC converter. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
LED / Constant-Current Control / Buck DC-DC converter / Boost DC-DC converter / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 104, no. 651, EE2004-68, pp. 13-19, Feb. 2005. |
Paper # |
EE2004-68 |
Date of Issue |
2005-02-01 (EE) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
EE |
Conference Date |
2005-02-08 - 2005-02-09 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
EE |
Conference Code |
2005-02-EE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Drive Circuit for LED with Constant-Current Control |
Sub Title (in English) |
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Keyword(1) |
LED |
Keyword(2) |
Constant-Current Control |
Keyword(3) |
Buck DC-DC converter |
Keyword(4) |
Boost DC-DC converter |
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1st Author's Name |
Kosuke Morihori |
1st Author's Affiliation |
Ngasaki University (Ngasaki Univ.) |
2nd Author's Name |
Yoichi Ishizuka |
2nd Author's Affiliation |
Ngasaki University (Ngasaki Univ.) |
3rd Author's Name |
Hirofumi Matsuo |
3rd Author's Affiliation |
Ngasaki University (Ngasaki Univ.) |
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Speaker |
Author-1 |
Date Time |
2005-02-09 10:00:00 |
Presentation Time |
30 minutes |
Registration for |
EE |
Paper # |
EE2004-68 |
Volume (vol) |
vol.104 |
Number (no) |
no.651 |
Page |
pp.13-19 |
#Pages |
7 |
Date of Issue |
2005-02-01 (EE) |
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