【名词&注释】
信号源(signal source)、共模抑制比(cmrr)、自耦变压器(autotransformer)、频敏变阻器(frequency-sensitive rheostat)、输入电阻(input resistance)、输出电阻(output resistance)、电流串联负反馈(series electric circuit negative feedba ...)、电流并联负反馈(current-shunt negative feedback)、电压串联负反馈(voltage series connection negative feed ...)、电压并联负反馈(negative feedback of voltage parallel)
[单选题]要求提高放大电路的带负载能力,同时减小对信号源索取的电流,应引入()
A. 电压串联负反馈(voltage series connection negative feed)
B. 电压并联负反馈(negative feedback of voltage parallel)
C. 电流串联负反馈(series electric circuit negative feedba)
D. 电流并联负反馈(current-shunt negative feedback)