A necessary condition for oscillation(振荡) is that there be no phase shift(相位移) between the input and output of the feedback network(反馈网路).
振荡的一个必要条件是,反馈网络输入和输出之间不应该有相位移。
举一反三
- In<br/>the hybrid equivalent model, hfe<br/>is the expression for __()()____. A: input impedance B: voltage feedback ratio C: small-signal current gain D: output admittance
- The production function is the A: increase in the amount of output from an additional unit of labor. B: marginal product of an input times the price of output. C: relationship between the quantity of inputs and output. D: shift in labor demand caused by a change in the price of output.
- 分组密码工作模式主要有EBC（Electronic Code Book，电子密码本）、CBC（Cipher Block Chaining，密文链接）、CFB（Cipher Block FeedBack，密文反馈）、OFB（Output FeedBack，输出反馈）与CTR（Counter，计数器）等模式
- Which of the following is not a phase in the design of a global supply chain network?
- 决定振荡电路的振荡频率的是( ) A: 放大倍数 B: 反馈系数 C: 选频网路参数
内容
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反馈（feedback）
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Truth is a necessary condition for beauty, but truth itself is not beauty.
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What’s the relationship between social network and technology network nowadays
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C language has no input/output statement, just input/output functions instead.
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Which of the following will result in an increase in productivity A: 10% decrease in both output and input B: 10% increase in output and 5% increase in input C: 5% increase in output and 10% increase in input D: 10% increase in both output and input