复制电工高级理论

当负载等效电阻Rˊ相对于Ri大得很多时，振荡回路中的端电压Uˊ增加，栅极反馈电压随着增加，阳极电压最小值Uamin减小到低于栅极电压的程度，这种状态称为(　　)。

发布于 2021-03-05 22:54:02

【单选题】
A 欠压状态
B 过压状态
C 过零状态
D 临界状态

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