separately-excited circuit

At first, the characteristics of the driving power amplifier were introduced, and the overall design method of the driving power amplifier was put forward, and then constant-current source circuit and power amplifier circuit of current feed-back were developed separately.

首先，介绍了高频激振器驱动电源的特点，提出了驱动电源的整体设计思路，分别设计了直流恒流源电路与电流反馈型功率放大电路；

The overall design method of the power supply is put forward, constant-current source circuit and AC source circuit are developed separately;

提出了功放系统的整体设计思路，分别设计了恒流源电路与交流放大电路；

Taking the auto charging system as an example, this article introduces the quick inspection and operation ways to determine the faults of the charging circuit, pre field circuit and alternator only applying a test lamp to test fire on alternator three times separately.

以汽车充电系统为例，叙述了用试灯在交流发电机上3次分段试火，快速确定充电主电路、预励磁电路、交流发电机等故障范围的检测思路、操作方法。