The buffer differs from the current amplifier as it sets out to provide whatever current level is demanded from it in order to maintain the signal voltage told to assert.
缓冲器总是可以提供任何你所需要的电流，以便维持其标称电压保持不变。这就是它与电流放大器的不同之处。
2
This article explained the load effect of feedback circuits and pointed out the general method that basic amplifier and feedback circuits are separated from negative feedback amplifier.
通过实例说明反馈网络的负载效应，从而归纳出从实际反馈放大器中分离出基本放大器和反馈网络的一般方法。
3
The motion control experiments were carried out to test the amplifier.