下图电路是什么类型的反馈电路（ ）http://edu-image.nosdn.127.net/11F136DD55EAE7DF5E78B5E3846DA011.png?imageView&thumbnail=890x0&quality=100
举一反三
- 如图所示电路引入哪种反馈类型？（ ）http://edu-image.nosdn.127.net/B6713C50FEA2E4554F291C3326F803A8.png?imageView&thumbnail=890x0&quality=100
- 判断下图电路的交流负反馈组态（）http://edu-image.nosdn.127.net/CAF4906CB34A01C2B1A89C5D4259E413.png?imageView&thumbnail=890x0&quality=100
- 一阶低通和高通滤波电路的特征频率http://edu-image.nosdn.127.net/7E7F1055858242AC1846E34707EA3848.png?imageView&thumbnail=890x0&quality=100与通带截止频率http://edu-image.nosdn.127.net/5EC1781C90A066C15C4A6AFF6EF983C2.png?imageView&thumbnail=890x0&quality=100相等；而高阶低通和滤波电路的http://edu-image.nosdn.127.net/3ED720FB1F05ABA1F9079DE5B7F791B8.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/F711F7FB9E8D3C851ACAABB02F5C6EE7.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/865F0785FF3D04AFFC7A9E21B34598FD.png?imageView&thumbnail=890x0&quality=100。
- 题4-4-4、下图电路中与X结点相关联的极点频率为（）。http://edu-image.nosdn.127.net/73D881979EE724F6BEA3DEEDA938791E.png?imageView&thumbnail=890x0&quality=100
- 如图所示电路，若稳压管的稳定电流范围是5～50mA，则IL有可能达到的最大变化范围http://edu-image.nosdn.127.net/6D00848AF97E742E2C6F02E17974A78C.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/13922324290481CA9F38829B787DCB7E.png?imageView&thumbnail=890x0&quality=100