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1-8.串联稳压器电路配置
串联稳压器基本由以下四个部分组成：
输出晶体管
输出晶体管串联在串联稳压器输入输出引脚之间。随着输入电压或输出电流的变化，误差放大器信号控制其栅极电压或基极电流。因此，输出晶体管起可变电阻的作用，保持输出电压稳定。
参考电压源
这是误差放大器的参考电压源。误差放大器根据这个参考电压控制输出晶体管的栅极或基极，保持输出电压稳定。
反馈电阻
反馈电阻对输出电压进行分压并产生反馈电压。误差放大器比较反馈电压与参考电压，控制输出电压。两个反馈电阻串联在VOUT和GND引脚之间。电阻之间的中点电压施加到误差放大器。
误差放大器
误差放大器比较反馈电压（即两个反馈电阻的中点电压）与参考电压。当反馈电压低于参考电压时，误差放大器提高MOSFET驱动力，降低漏源电压，从而增加输出电压。
当反馈电压高于参考电压时，误差放大器降低MOSFET驱动力，增加漏源电压，从而降低输出电压。
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