基于微控制器的智能车系统外围电路设计

Design of Peripheral Circuit of Intelligent Vehicle System Based on Microcontroller

为提升智能车系统运行效果,分析了智能车系统的外围硬件电路,提出设计方案。电源管理电路根据电路功能确定设计稳压电路、电源过压过流保护电路、稳压电源扩流电路。传感器电路包括模拟量转数字量电路、模拟量放大电路和硬件滤波电路,并对驱动电路及驱动隔离电路进行设计,提高了智能车系统的可靠性。

In order to promote the operation effect,the research analyzes peripheral hardware circuit of intelligent vehicle system,and proposes the design scheme.We can determine and design voltage regulator circuit,power over voltage and over current protection circuit,and current expansion circuit of voltage-stabilized source according to circuit function in power management circuit.Sensor circuit contains analog quantity transferring digital quantity circuit,analog quantity amplifying circuit and hardware filter circuit.We design drive circuit and drive isolating circuit.So the reliability of the intelligent vehicle system is improved.