A Novel Boost Converter Based LED Driver Chip Targeting Mobile Applications
|Abstract||A novel integrated constant current LED driver design on a single chip is developed in this dissertation. The entire design consists of two sections. The first section is a DC-DC switching regulator (boost regulator) as the frontend power supply; the second section is the constant current LED driver system.
In the first section, a pulse width modulated (PWM) peak current mode boost regulator is utilized. The overall boost regulator system and its related sub-cells are explained. Among them, an original error amplifier design, a current sensing circuit and slope compensation circuit are presented.
In the second section – the focus of this dissertation – a highly accurate constant current LED driver system design is unveiled. The detailed d... (more)
|Contributor||Wang, Ge (Author) / Holbert, Keith E (Advisor) / Song, Hongjiang (Committee member) / Ayyanar, Raja (Committee member) / Yu, Hongbin (Committee member) / Arizona State University (Publisher)|
|Subject||Electrical engineering / Accurate LED current / Boost regulator / LED driver|
|Reuse Permissions||All Rights Reserved|
|Note||Doctoral Dissertation Electrical Engineering 2016|
|Collaborating Institutions||Graduate College / ASU Library|
|Additional Formats||MODS / OAI Dublin Core / RIS|