An LED driver with thermal control function

Zhenxu Zha, Hei Wong, Yan Han

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

6 Citations (Scopus)

Abstract

This paper presents a light-emitting diode (LED) driver for general lighting applications. In addition to providing a high stable current source for the LED biasing, the new circuit provides an energy-efficient way for light intensity control using a pulse width modulation (PWM)-based dimming circuit. Moreover, we introduce a feedback thermal control circuit to ensure the LED being operated at a temperature lower than 60 °C so as to minimize the light intensity degradation and to prolong the lifetime of the LED lamps.
Original languageEnglish
Title of host publicationProceedings - 2014 IEEE 12th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014
PublisherIEEE
ISBN (Print)9781479932962
DOIs
Publication statusPublished - 23 Jan 2014
Externally publishedYes
Event2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014 - Guilin, China
Duration: 28 Oct 201431 Oct 2014

Conference

Conference2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014
PlaceChina
CityGuilin
Period28/10/1431/10/14

Research Keywords

  • constant current driving
  • dimmable
  • LED driver
  • PWM
  • thermal control

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