一种基于单片机的叠加交流电压产生器

Superimposed Voltage Generator Based on Single Chip Microcomputer

介绍一种基于MCS-51单片机设计的叠加交流电压产生器,为道路车辆的电子设备和单元的耐久激活检测提供叠加交流电压信号,并给出了叠加交流电压产生的理论依据。设计通过单片机控制DDS芯片产生50Hz^20k Hz的正弦波扫频信号,与直流电压合成以及功率放大,旨在模拟汽车电子设备和单元供电的纹波电压,对汽车电子在电压波动环境下的可靠性检测提供模拟电源。

This paper introduces the design of a superimposed alternating current（AC） voltage generator abased MCS-51 single chip microcomputer,and it can provide superimposed AC voltage signal detection for road vehicle electronic equipment and unit durable activation.This generator can generate sine wave swept-frequency signal whose frequency is from50 Hz to 20 KHz,AC voltage synthesis and power amplification based on DDS chip controlled by single chip microcomputer.