- 學位論文
LED驅動電路之T-S Fuzzy控制器研究
LED Brightness Control via T-S Fuzzy Control Approach
摘要
本論文之目的為對未知排列組合的LED負載設計一個模糊控制驅動器。以往的驅動控制器設計只注重在效率上的提升，必須知道LED負載的組成，限制了應用範圍，本論文將利用DC/DC升壓電路做為驅動電路，並設計具有平行分散式補償的T-S模糊控制(T-S Fuzzy controller)，其優點為收斂速度快及高穩定度。為了驗證所提出的控制方法，採用數位訊號處理卡（DSP 卡）實現所發展之控制器，並測試不同之LED模組切換及電源變動之響應。最後利用單晶片PSoC CY8C29466取代DSP卡來實現LED調光控制器，使所提T-S Fuzzy調光控制器更具應用價值。
並列摘要
The purpose of this thesis is to design a T-S fuzzy dimming controller for an unknown arranged LED array. In the past, the LED driving controller design only focuses on efficiency improvement, so that we should know the composition of the LED array, i.e., the application is limited. To solve this problem, we will use the DC/DC boost circuit as a driver circuit and design a T-S fuzzy dimming controller. The advantage of this approach is fast convergence and high stability. In order to verify the validity of the proposed control method, we apply digital signal processing card (DSP card) to implement the controller. Finally, the DSP based controller is replaced by the PSoC CY8C29466 chip controller, so that the proposed T-S fuzzy dimming controller has more worthwhile.