| Summary: | 碩士 === 華梵大學 === 機電工程學系博碩專班 === 98 === This thesis presents a digital dimming control circuit for RGB LEDs including driver. We simulate the function of RGB colors using FPGA first, then layout the circuit structure by “TSMC 0.35um MIXED MODE (2P4M, 3.3V/5V) process”. Finally, we can achieve the integrated circuit.
The digital circuit is simulated by Xilinx Spartan XCS20XL which is 17 bits dimming. We use a method “pulse width modulation (PWM)” to achieve the RGB mixing light. We simulate the analog circuit with Hspice, layout with Laker made by Springsoft Inc., and verify with Calibre DRC（Design Rule Check）、LVS（Layout vs Schematic）、PEX（Post layout extraction）made by Mentor Graphics Corp.
The life of light emitting diode will be decreased with rising temperatures it used by a long time. When we make a module for a LED application, the temperature will rise more easily. Besides packages and cooler, we also have to consider whether if the qualities and functions will be changed by the varieties of the temperature. Therefore, we use “Application-Specific Integrated Circuit” to achieve a high speed, stable, and low cost integrated circuit.
Keywords：RGB LED、FPGA、PWM、ASIC
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