模拟电路题求解
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:物理作业 时间:2024/07/11 10:36:54
模拟电路题求解
![](http://img.wesiedu.com/upload/6/6b/66b17646f881cd9464680ce0b9d268ad.jpg)
![](http://img.wesiedu.com/upload/6/6b/66b17646f881cd9464680ce0b9d268ad.jpg)
![模拟电路题求解](/uploads/image/z/17882131-67-1.jpg?t=%E6%A8%A1%E6%8B%9F%E7%94%B5%E8%B7%AF%E9%A2%98%E6%B1%82%E8%A7%A3)
实际电压源模型就是戴维南定理求出的等效电源:电压源 Uoc 串联内阻 R0 .http://baike.baidu.com/link?url=hx_cnp2epwegNQrqQTLkMf3xHN0qh7bHW1PaCUbq7o7VGXaORKCEIlFtxkMejg8r(1)闭合回路,电流方向顺时针:I = 18 / 9 = 2 AUoc = 2 * 6 - 12 = 0 VR0 = 3 // 6 = 2Ω(2)电流源转换成电压源,相加:Us1 = 3 * 5 = 15 V ,R01 = 3 Ω ,正极在上方;Us2 = 2 * 4 = 8 V ,R02 = 4Ω ,正极在下方;Uoc = Us1 - Us2 = 7 V ,正极在上方;R0 = R01 + R02 = 7 Ω(3)闭合回路的电流以及方向由电流源决定,逆时针:Uoc = 5 * 6 + 10 = 40 VR0 = 5Ωhttp://wenku.baidu.com/view/1a26938d8762caaedd33d4bc.html![](http://img.wesiedu.com/upload/2/fe/2fe7e458f3861e36a142f98225aaba6d.jpg)
![](http://img.wesiedu.com/upload/2/fe/2fe7e458f3861e36a142f98225aaba6d.jpg)