由集成 A 1 、 A 2 组成的反馈放大电路如图所示。试回答下列问题: 1 .为使 A 1 工作在负反馈状态,请说明 A 2 的a、b端应分别接同相输入端还是反相输入端;(4分) 2 .说明 A 2 与电阻R、10R 所构成的 交流级间负反馈属哪种组态。(6分) 3. 求电路的闭环电压增益Auf=uo/ui,请写出详细推导过程。根据推导步骤,分步打分。(10分)
【简答题】In many parts of the world it is quite normal to show openly extremes of enthusiasm, emotion, passion, etc., often accompanied by appropriate gestures, while Englishmen tend to display their feelings ...
【简答题】In many parts of the world it is quite normal to show openly extremes of enthusiasm, emotion, passion, etc., often accompanied by appropriate gestures, while Englishmen tend to display their feelings ...
【简答题】In many parts of the world it is quite normal to show openly extremes of enthusiasm, emotion, passion, etc., often accompanied by appropriate gestures, while Englishmen tend to display their feelings ...
【简答题】Replace the underlined part in each of the following sentences with a word or phrase from the box below. Write your answer in the brackets. Change the form where necessary. injure revive invest...