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• 4.如圖 4 所示電路，試求三相平均功率為多少？（5％）
• 【題組】(d) Design the state feedback controller K so that the roots lie in s=-4±4j.(10%)
• 【題組】(b). According to the results in (a), find the steady-state error if it exists. (2%)
• 【題組】(c). The steady-state error in (b) can be removed by designing the controller Gc(s) =K /s, pleas
• 【題組】(d). According to (c), determine the range of K, so that the unity feedback controlsystem is sta
• 10.如圖(四)所示電路，MOSFET 之臨界電壓 = 2 ，參數 K=1.5 ，求電 約為何？ (A)6V (B)7.2V (C)3V (D)12V 。
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