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Primary-Controlled Constant Current LED driver with Extremely Low THD and Optimized Phase-Cut Dimming Compatibility
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| Author(s) |
Giovanni GRITTI |
| Abstract |
This paper describes a novel control method for high-power-factor quasi-resonant (Hi-PF QR) flyback converters able to meet simultaneously three control objectives: a) performing constant-current control with primary sensing regulation (CC-PSR); b) achieving ideally no harmonic distortion of the ac input current; c) being fully compatible with real-world 'phase-cut' wall dimmers. Simulation results and experimental verification data are provided to validate the method, which has been implemented in a control IC targeting solid state lighting applications (LED drivers). |
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| Filename: | 0007-epe2015-full-14574136.pdf |
| Filesize: | 741.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-06-08 by System |
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