22 lines
631 B
Markdown
22 lines
631 B
Markdown
|
---
|
|||
|
|
title: 电压监测设计
|
|||
|
|
updated: 2022-01-11 09:17:31Z
|
|||
|
|
created: 2022-01-08 13:18:05Z
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
处理器自带的ADC对于一般的应用精度足够 但需要注意待采电压范围
|
|||
|
|
|
|||
|
|
STM32F407典型资源：
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
预设电压、电流、温度范围，定时检测，超出则认为是故障
|
|||
|
|
|
|||
|
|
典型电压监测点：进电，分支稳压点，PLL供电点
|
|||
|
|
|
|||
|
|
电流检测只做一处，即进电即可
|
|||
|
|
|
|||
|
|
典型温度检测点：进电DCDC/LDO，PLL，壳体
|
|||
|
|
|
|||
|
|
可能需要根据工作状态（模式/高低温）等配置不同的阈值
|