本論文提出一訊號處理器來實現一群組非對稱脈波寬調變控制器，並用以消除螢光燈之輝紋及溫度計效應。利用組合語言撰寫的單晶片控制器取代原有類比群組非對稱脈波寬調變控制器，不但使群組非對稱脈波寬調變控制器更容易實現，並可用程式將螢光燈管奇次諧波能量有效分佈在每一個諧波上，藉此消除輝紋及溫度計效應。本論文利用串聯諧振並聯負載式半橋電子安定器之主電路架構，文中除了說明其動作原理，並提出一簡易的設計準則及應用實例。最後利用電腦模擬電路軟體IsSpice驗證所提理論之正確性，實驗結果證明本文所提之方案的確可將螢光燈調光範圍大幅擴展為1%~100%。

This thesis presents a signal processor for realizing a group-asymmetrical PWM controller (GAPWM), which is used to eliminate striation and thermostat effect in a fluorescent lamp. A single-chip programmable controller with assembly language is proposed instead of the analog GAPWM controller. It can make the control strategy of GAPWM more easy to implement and also can programmably spread the odd harmonic energies of the lamp current sharing onto all spectra of the harmonics so as to precisely eliminate striation and thermostat effect. A series-resonant half-bridge electronic ballast is used to examine the performance of the chip processor . Not only the electronic ballast behavior is analyzed but also a design example with experiment and simulation for verifying the theoretical perdition is conducted. Besides, the fluorescent lamps can be dimmed without striation and thermostat effect during a wide range from 1% to 100% of the full luminance.

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