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104年 - 104 國立中山大學_碩士班招生考試_電機系(丁組):電力工程#110208
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題組內容
5. Draw the phasor diagrams between the voltages and current of a synchronous generator of
(a) unity power factor,
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(b) lagging power factor and
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(c) leading power factor. (15%)
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(a) What is the amplifier configuration in Figure 1.
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(b) Explain why the Rs can improve the thermal stability of the amplifier.
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(c) Please derive of the amplifier in Figure 1. (2%, 2%, 2%*8)
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(a) the voltage gain Vo/Vs,
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(b) the input resistance, and (c) the output resistance (7%,7%, 6%)
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(a) Draw an ENH mode NMOS (enhancement nMOSFET) and a DEP mode NMOS (depletion nMOSFET) respectively. Please explain what are the differences of
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(b) their fabrication processes and the differences between
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(c) their input characteristics and (d) their output characteristics , respectively. (5%, 5%, 5%, 5%)
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104年 - 104 國立中山大學_碩士班招生考試_電機系(丁組):電力工程#110208
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