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 language | English |
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| Title of host publication | Proceedings - 2014 IEEE 12th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014 |
| Publisher | IEEE |
| ISBN (Print) | 9781479932962 |
| DOIs | |
| Publication status | Published - 23 Jan 2014 |
| Externally published | Yes |
| Event | 2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014 - Guilin, China Duration: 28 Oct 2014 → 31 Oct 2014 |
Conference
| Conference | 2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2014 |
|---|---|
| Place | China |
| City | Guilin |
| Period | 28/10/14 → 31/10/14 |
Research Keywords
- constant current driving
- dimmable
- LED driver
- PWM
- thermal control