https://scholars.lib.ntu.edu.tw/handle/123456789/501084
標題: | Area-saving and high-efficiency rgb led driver with adaptive driving voltage and energy-saving technique | 作者: | Hsu, Y.-C. Lin, J.-Y. CHUNG-PING CHEN |
關鍵字: | Area-saving; DC–DC converter; High efficiency; LED driver | 公開日期: | 2018 | 卷: | 11 | 期: | 6 | 來源出版物: | Energies | 摘要: | The red-green-blue light-emitting diode (RGBLED) driver with adaptive driving voltage and energy-saving (ADVE) technique is presented in this paper. To obtain the proper driving voltage, a dynamic output voltage selector is proposed. This approach tracks the reference voltage of a boost converter to achieve the appropriate output voltage of the boost converter. Hence, the power loss of the linear current regulator is reduced to improve the efficiency of whole system. Moreover, the chip area is saved by the proposed switching linear current regulator. This chip was fabricated using TSMC 0.35 µm 2P4M complementary metal-oxide-semiconductor (CMOS) technology. The active chip area is 0.3 mm2. The maximum driving current and operating frequency are 100 mA and 100 kHz, respectively. Compared with a conventional LED driver with fixed output voltage, the experimental results demonstrate that the power loss of the proposed LED driver with ADVE technique is reduced by over 58%. © 2018 by the authors. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/501084 | DOI: | 10.3390/en11061422 | SDG/關鍵字: | CMOS integrated circuits; Electric current regulators; Energy conservation; Light emitting diodes; Metals; MOS devices; Oxide semiconductors; Area savings; Complementary metal-oxide-semiconductor technologies; DC converter; Energy-saving techniques; High-efficiency; LED drivers; Linear current regulator; Operating frequency; DC-DC converters |
顯示於: | 電機工程學系 |
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