中華電信102機務類專(四)第一類 計概&電子學 選擇52 - 考試
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By George
at 2013-07-15T20:23
at 2013-07-15T20:23
Table of Contents
高功率的 MOSFET 元件作為功率級開關使用,欲提高容量可作並聯接線,此RDS(on)
與溫度的特性,下列何者正確?
1.溫度上升, RDS(on) 變小,汲極電流增加
2.溫度上升, RDS(on) 變大,汲極電流減少
3.溫度上升, RDS(on) 變小,汲極電流減少
4.溫度上升, RDS(on) 變大,汲極電流增加
答案是2.
有誰可以解釋為什麼?
感謝。
--
與溫度的特性,下列何者正確?
1.溫度上升, RDS(on) 變小,汲極電流增加
2.溫度上升, RDS(on) 變大,汲極電流減少
3.溫度上升, RDS(on) 變小,汲極電流減少
4.溫度上升, RDS(on) 變大,汲極電流增加
答案是2.
有誰可以解釋為什麼?
感謝。
--
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