A Primary-Side Control Scheme for High-Power-Factor LED Driver With TRIAC Dimming Capability

@article{Zhang2012APC,
  title={A Primary-Side Control Scheme for High-Power-Factor LED Driver With TRIAC Dimming Capability},
  author={Junming Zhang and Hulong Zeng and Ting Jiang},
  journal={IEEE Transactions on Power Electronics},
  year={2012},
  volume={27},
  pages={4619-4629}
}
This paper proposes a primary-side control scheme for low-power light-emitting diode (LED) driver with Flyback topology. With average primary-side current signal and transformer auxiliary winding voltage signal, the output current can be derived and regulated precisely by the proposed control scheme without any isolated feedback circuit. Furthermore, the proposed primary-side control scheme can be implemented with power factor correction control to achieve high input power factor, which is… CONTINUE READING

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