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) |
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| Created Date | 2016 |
| 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 |
| Type | Doctoral Dissertation |
| Extent | 130 pages |
| Language | English |
| Copyright |
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| Reuse Permissions | All Rights Reserved |
| Note | Doctoral Dissertation Electrical Engineering 2016 |
| Collaborating Institutions | Graduate College / ASU Library |
| Additional Formats | MODS / OAI Dublin Core / RIS |
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