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Area-Saving and High-Efficiency RGB LED Driver with Adaptive Driving Voltage and Energy-Saving Technique

Author

Listed:
  • Yi-Chieh Hsu

    (Graduate Institute of Electronics Engineering, and Department of Electrical Engineering, National Taiwan University, Taipei 10607, Taiwan)

  • Jing-Yuan Lin

    (Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan)

  • Charlie Chung-Ping Chen

    (Graduate Institute of Electronics Engineering, and Department of Electrical Engineering, National Taiwan University, Taipei 10607, Taiwan)

Abstract

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 mm 2 . 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%.

Suggested Citation

  • Yi-Chieh Hsu & Jing-Yuan Lin & Charlie Chung-Ping Chen, 2018. "Area-Saving and High-Efficiency RGB LED Driver with Adaptive Driving Voltage and Energy-Saving Technique," Energies, MDPI, vol. 11(6), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1422-:d:150237
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    References listed on IDEAS

    as
    1. Ngoc Hai Vu & Thanh Tuan Pham & Seoyong Shin, 2017. "LED Uniform Illumination Using Double Linear Fresnel Lenses for Energy Saving," Energies, MDPI, vol. 10(12), pages 1-15, December.
    2. Steffen Thielemans & Dario Di Zenobio & Abdellah Touhafi & Philippe Lataire & Kris Steenhaut, 2017. "DC Grids for Smart LED-Based Lighting: The EDISON Solution," Energies, MDPI, vol. 10(10), pages 1-26, September.
    3. Yong Deok Ahn & Sungwoo Bae & Suk-Ju Kang, 2017. "Power Controllable LED System with Increased Energy Efficiency Using Multi-Sensors for Plant Cultivation," Energies, MDPI, vol. 10(10), pages 1-13, October.
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    Cited by:

    1. Claudio Adragna & Giovanni Gritti & Angelo Raciti & Santi Agatino Rizzo & Giovanni Susinni, 2020. "Analysis of the Input Current Distortion and Guidelines for Designing High Power Factor Quasi-Resonant Flyback LED Drivers," Energies, MDPI, vol. 13(11), pages 1-24, June.

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