Abstract
A novel integrated circuit for driving LED lighting has been proposed, designed and fabricated. Besides the typical parts of LED driver, an integral part was added at the output terminal of error amplifier in the driver. In this way, a novel average current mode can be set up to take the place ordinary peak current control mode. In addition, a BUCK low-level topology was adopted, too. It can be used to drive up to eight 1 W HB LED lights with 350 mA constant current. In this way, the LED driver displays high performance, in which output current with less 1% error and total efficiency as high as 96%. The feasibility of the design has been verified by actual measurement on the fabricated chip.
Highlights
Contrasting to the traditional fluorescent lamp, high bright LED, being a potential lighting source, has the obvious advantage in energy saving, environmental protection, high efficiency, etc. [1]
A peak current control mode has always been adopted in the existing LED driver to obtain constant current [2]
A BUCK low-level topology will be adopted in the driver to get high efficiency
Summary
Contrasting to the traditional fluorescent lamp, high bright LED, being a potential lighting source, has the obvious advantage in energy saving, environmental protection, high efficiency, etc. [1]. A peak current control mode has always been adopted in the existing LED driver to obtain constant current [2]. An average current control mode was adopted, in this case it isn’t influenced by the inductor value anymore. In this way, a higher accurate output will be obtained in LED driver to guarantee its lifetime. To solve the above issues, an integrated circuit driver with average current control mode was proposed and designed in this paper, to get accurate and stable output current, which will be introduced in the Section 2. A BUCK low-level topology will be adopted in the driver to get high efficiency The experimental results and discussion will be made to show design’s advantage
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
