摘要:随着微电子技术在汽车控制系统中的广泛应用，汽车总成中电子系统的作用显得越来越重要，这种发展态势对汽车发电系统提出了更高的要求。目前汽车中应用最普遍的发电系统主要由交流发电机、三相硅整流器及电压调节器构成。作为一个可靠的发电系统，要求这三个组成部分都具有高度的可靠性。调压器是汽车发电系统的心脏部件，优质的电压调节器是保证汽车电子系统高可靠性的重要前提。

本文通过一些电子调压器的分析，提出了具有保护功能的电子调压器，这使汽车的发电系统更可靠，更安全的工作。文中详细分析了电子调压器的工作原理和电路结构，分块设计了各个功能模块，包括取样电路、基准稳压电路、保护电路、反馈电路和调整管。同时本文还设计了电子调压器的检测电路和外壳。

关键词：电子调压器,调整管,可调稳压源

Abstract:With microelectronics technology is widely used in control system of the car，Electronic system is more and more important among car assembly．The trend make automotive generating system need higher performance．Nowadays the generating system that is the most widely used in automobile mainly consists of AC generators、 silicon rectifier and voltage regulator．As a reliable generating system，it requests the three components need high reliability．Voltage regulator is the component of the hart of automotive generating system．The reliability of automotive electronic system is based on the excellent voltage generator．

Based on the analysis of some electronic regulator, the article raises the protection function of electronic regulator, which makes the automotive generating system more reliable and safer．This paper analyses the working principle of the electronic regulator and the circuit structure in detail，and design each function modules, including the voltage sampling circuit, voltage regulation circuit, protection circuit, feedback circuit and regulation circuit. The paper also designed detection circuit and shell of the electronic voltage regulator.

Keywords: Electronic voltage regulator, Regulate transistor, Adjustable voltage regulation source