High-precision constant current controller for primary-side feedback LED drivers

  title={High-precision constant current controller for primary-side feedback LED drivers},
  author={Yulin Wang and Junmin Jiang and Lenian He},
  journal={2013 IEEE International Symposium on Industrial Electronics},
This paper presents a novel constant current LED controller with primary-side feedback control method for flyback topology. The method is proposed based on sampling input peak current and secondary-side electric information detected by an extra auxiliary winding. Eliminating opto-isolator, the controller can still regulated the output current precisely by designing special sample circuit and compensating signal propagation delay. A prototype with 7 LEDs has been built to verify the control… CONTINUE READING
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Priamry Side Control Circuit of a Flyback Converter for HBLED

  • S. D. Feng Zhu, Q. Pei
  • PEDG2010, 2nd IEEE International Symposium on, pp…
  • 2010

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  • a. M.M. Laszlo Huber, Yuequan Hu
  • Industry Applications Society Annual Meeting…
  • 2009

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