Title :
Reducing EMI in half-bridge resonant LED drivers with chaos-based PWM
Author :
Junying Niu ; Yuhong Song ; Zhong Li ; Halang, Wolfgang A.
Author_Institution :
Dept. of Electron. & Inf. Enginneering, Shunde Polytech., China
Abstract :
The high power LED lighting utilizes half-bridge resonant (HBR) drivers, whose high switching rate, however, results in severe electromagnetic interference (EMI) problem. The pseudo-randomness and continuous spectrum features of chaos is applied to design chaos-based pulse width modulation (CPWM) for suppressing harmonics in the HBR LED drivers. Simulation results illustrate the effectiveness of the proposed CPWM in suppressing EMI.
Keywords :
Chua´s circuit; LED lamps; chaos; electromagnetic interference; harmonics suppression; pulse width modulation; CPWM; EMI problem; HBR LED drivers; chaos-based pulse width modulation; electromagnetic interference; half-bridge resonant drivers; harmonics suppression; high power LED lighting; pseudorandomness; spectrum features; Chaos; Electromagnetic compatibility; Electromagnetic interference; Light emitting diodes; Oscillators; Pulse width modulation; Voltage control; Chua´s circuit; Half-Bridge resonant (HBR); chaos-based pulse width modulation (CPWM); electromagnetic interference (EMI);
Conference_Titel :
Electromagnetic Compatibility (EMC EUROPE), 2013 International Symposium on
Conference_Location :
Brugge
