obsidian-notes/干扰器方案分析/改进/指示.md
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---
title: 指示
updated: 2022-06-27 03:00:02Z
created: 2022-06-27 02:54:02Z
---
# 电源指示
为准确提供电源状态指示可配双色灯绿色供电正常红色供电异常。原理是一级稳压后加一级过压保护ICLP5300
采用共阳RGB管时先使用 [高压LDO](../../../电源/LDO/高压LDO.md) 获取稳定低压消除宽压输入的影响。此电压作为共阳电压LED末端分别接Nmos/NPN和Pmos/PNP。必要时加大LDO输出电容避免上电异常灯闪烁。