题目
48520 Electronics and Circuits - Spring 2025 2025 Spring - Quiz 1
单项选择题
选项
A.𝑣
𝑜
=
−
21
𝑣
1
+
17
𝑣
2
+
12
𝑣
3
−
31
𝑣
4
17
B.𝑣
𝑜
=
20
𝑣
1
+
14
𝑣
2
−
18
𝑣
3
−
22
𝑣
4
19
C.𝑣
𝑜
=
44
𝑣
1
+
22
𝑣
2
−
14
𝑣
3
−
42
𝑣
4
21
D.𝑣
𝑜
=
24
𝑣
1
−
34
𝑣
2
+
14
𝑣
3
−
18
𝑣
4
4
E.𝑣
𝑜
=
8
𝑣
1
+
13
𝑣
2
−
23
𝑣
3
−
11
𝑣
4
7
F.𝑣
𝑜
=
42
𝑣
1
−
33
𝑣
2
+
23
𝑣
3
−
51
𝑣
4
35
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标准答案
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思路分析
We start by identifying the circuit relationships at the op-amp inputs. The configuration is an ideal op-amp with negative feedback, so the voltage at the inverting input equals the voltage at the noninverting input (v- = v+).
First, analyze the noninverting input network. The node at v+ is connected to v1 through a 10 kΩ resistor, to v2 through a 20 kΩ resistor, and to ground through ......Login to view full explanation登录即可查看完整答案
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类似问题
Question at position 1 Consider the following circuit where Ra=1k, Rb=5k, RL=32. Assume that the Op-Amp is ideal and for the BJT β=100 and VBE=0.7V Find: a) The output voltage and the collector current of the BJT assuming Vin=-0.5V Vout = Question Blank 1 of 3[input] V Ic = Question Blank 2 of 3[input] mA Hint: Notice that the current on Rb and RL must come from the emitter of the BJT. b) The maximum values that |Vin| can have while keeping the Op Amp out of saturation. Notice that Vout can not be negative as current can't flow into the emitter of the transistor. |Vin,max | = Question Blank 3 of 3[input] V
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