Many practical amplifiers chain together a series of analogamplifier stages to obtain a high overall voltage gain.
许多实际的放大器将多个放大器级联起来，以获得较高的电压增益。
2
Finally, analyse and compare digital and analogamplifier power amplifier through experiment. Do some Specific analysis of the various characteristics of digital power amplifier.
最后，通过试验分析对比了数字功率放大器和模拟功率放大器，具体分析了数字功率放大器的各种特性。
3
The traditional power meter calibrating system usually has the shortcomings of low efficiency and large volume due to its standard voltage and current source rely on the analogamplifier.