@inproceedings{oai:nagasaki-u.repo.nii.ac.jp:00016711,
 author = {Nishikawa, Masahiro and Ishizuka, Yoichi and Matsuo, Hirofumi and Shigematsu, Koichi},
 book = {INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference},
 month = {Nov},
 note = {A Single LED is very small, and their luminance is related to the amount of driving current. Sufficient luminance for an illuminator requires many LEDs to be connected together and a constant current supplied to each LED. Therefore, the LED drive circuit must have constant-output-current control and/or constant-luminance control. We propose an LED drive circuit that consists of a boost-type DC-DC converter with constant-output-current control and constant-luminance control. This circuit is a switching regulator-type circuit controlled by pulse width modulation (PWM). Both the power and the constant-current control can be provided by a single system, without any ballast resistor or auxiliary current control circuit., INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference : Providence, RI, USA, 2006.9.10-2006.9.10, International Telecommunications Energy Conference, pp.1-6; 2006},
 pages = {1--6},
 publisher = {IEEE},
 title = {An LED Drive Circuit with Constant-Output-Current Control and Constant-Luminance Control},
 volume = {2006},
 year = {2006}
}