一比较器电路如图所示。VREF=-1V,VZ=5V,门限电压值为 。http://edu-image.nosdn.127.net/3EB059916C4F1BC075153666ED617E23.png?imageView&thumbnail=890x0&quality=100
举一反三
- 一比较器电路如图所示。VREF=-1V,VZ=5V,输出电压值为 。[img=307x135]1803a19f5ae1d8e.png[/img] A: 正负5V B: 5V C: 负5V D: 负1V
- 图示电路中,(a)图的电压源Us=20V时,U=8V。若将Us去掉并用短路线代替,如图(b)所示,试求图(b)电路的U= V。http://edu-image.nosdn.127.net/426E2798D8AD1AD38E20BBB925BA7F9D.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/CC5774C33E28389284273447A6B8CA49.png?imageView&thumbnail=890x0&quality=100
- <img src="http://edu-image.nosdn.127.net/AD8EF76A2707799B04E4FC998BBC7BEF.jpg?imageView&thumbnail=890x0&quality=100" />? 5V,0A,0A|5V,1A,1A|0 V, 0A,0A|∞,0A,0A
- 中国大学MOOC: 图示电路中,(a)图的电压源Us=20V时,U=8V。若将Us去掉并用短路线代替,如图(b)所示,试求图(b)电路的U= V。http://edu-image.nosdn.127.net/426E2798D8AD1AD38E20BBB925BA7F9D.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/CC5774C33E28389284273447A6B8CA49.png?imageView&thumbnail=890x0&quality=100
- 中国大学MOOC: 图(a)的戴维南等效图如图(b)所示,则图(b)中Uo= V,Ro= Ω。http://edu-image.nosdn.127.net/50E9EF209369F32D684FAE0A941D9CDC.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/E3F6E50E9BBB665D9D085C2689D2F094.png?imageView&thumbnail=890x0&quality=100 (a) (b)