轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗，可在某个较大型输出电源关闭后保持更高的效率。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
这和放大器的输出阻抗究竟是多少无关。
在“简洁”条件下，反馈放大器的传递函数和输入、输出阻抗具有简洁和便于应用的形式。
On the "simplifying" conditions, the transfer functions, as well as the input and output impedance expressions of the feedback amplifiers, are succinct; and, can be conveniently used.
完成启动后，放大器很低的输出阻抗将会降低因流经R1的电流不足以影响稳压管上的电压稳定性。
After start-up, the low amplifier output impedance reduces reference current variations due to the current through R1.
通过讨论输入失调电流对集成运算放大器输出的影响，推导出集成运算放大器外围阻抗的最佳取值关系。
After discussing how the input offset current influences the output of operational amplifier, the optimal relationship between peripheral impedance is obtained.
减少的有效输出阻抗的放大器的原因作出反应较少的发言。
The decreased effective output impedance causes the amp to react less to the speakers.
仪表放大器电路以其高输入阻抗、高共模抑制比、低漂移等特点在传感器输出的小信号放大领域得到了广泛的应用。
Instrumental amplifiers with high input impedance, high CMRR and low drift are widely used in the small signal amplifying field.
翻一下：一般情况下耳机放大器为了对耳机控制有很低的输出阻抗。
Normally a headphone amplifiers has a very low output impedance which gives the amp tight control over the headphone action.
放大器可以是差分互阻抗放大器，或耦合至差分输出放大器的双互阻抗放大器。
The amplifier may be either a differential trans-impedance amplifier, or a dual trans-impedance amplifier coupled to a differential output amplifier.
为了保证系统的稳定性以及减小系统的输出瞬时过冲，本文设计了输出缓冲级来隔离误差放大器的高阻抗输出节点与通路器件的栅极。
To make sure the stability and lower the transient overshoot of the LDO, a buffer stage is used to isolate the pass element and the output of the error amplifier.
为了保证系统的稳定性以及减小系统的输出瞬时过冲，本文设计了输出缓冲级来隔离误差放大器的高阻抗输出节点与通路器件的栅极。
To make sure the stability and lower the transient overshoot of the LDO, a buffer stage is used to isolate the pass element and the output of the error amplifier.
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