放大电路自激是什么意思
时间: 2023-09-21 09:02:39 浏览: 57
放大电路自激是指在深度负反馈条件下,放大电路产生了自我激励振荡的现象。在自激振荡中,放大电路的输出信号被反馈回放大器的输入端,导致放大倍数不断增加并且出现频率的周期性波动。这种现象会导致放大器失去稳定性,并且产生不可预测的输出信号。为了避免放大电路自激,需要采取相应的措施,比如增加合适的相位补偿网络,以消除自激振荡。<span class="em">1</span><span class="em">2</span>
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