A Digital boost converter to drive white LEDs

  title={A Digital boost converter to drive white LEDs},
  author={Wei-Hsu Chang and Hung-Shou Nien and C. Chen},
  journal={2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition},
A constant off-time boost converter with digital control was proposed and implemented with a field-programmable-gate-array (FPGA) to power white light emitting diodes (WLEDs) for hand-held applications. In the application, a lithium-ion battery with voltage ranging from 3.3 V to 4.2 V was used to light a serial connection of 4 WLEDs drawing current levels from 2 mA to 20 mA. A constant off-time digital PWM controller was chosen to increase the dimming resolution. For the compensator design, a… CONTINUE READING
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Small-Signal Modeling of Variable-Frequency Pulse Width Modulators

  • J. Sun
  • IEEE Transactions on Aerospace and Electronic…
  • 2002
1 Excerpt

Design and Implementation of a Digital PWM Controller for a High-Frequency Switching DC-DC Power Converter

  • A. Prodic
  • Proceedings of IEEE Industrial Electronics…
  • 2001
1 Excerpt

Digital Controller Design for Switch Mode Power Converters

  • Y. Duan, H. Jin
  • Proceeding of IEEE Applied Power Electronics…
  • 1999
1 Excerpt

Digital PWM Control: Application in Voltage Regulator Models

  • A. M. Wu
  • Proceedings of IEEE Power Electronics Specialists…
  • 1999
1 Excerpt

Modern DC-to-DC Switch Mode Power Converter

  • R. P. Severns, G. Bloom
  • 1985

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