摘要： 本应用指南介绍了使用低功耗 CMOS 比较器提供 LED 视觉显示电池电量低条件的电路。这个杠杆收购 (低电量） 被通过脉冲，指示灯的低频率和低工作周期。电路实现此不排放过量电池当前也会导致永久性的电池损坏，并最终危险废物处置。这种电路还有助于节省电池当前关闭周期中通过将比较器放置在关机。包含用于确定责任周期和比较器之旅点方程和电路分析。Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 1872 Maxim > Design Support > Technical Documents > Application Notes > Automotive > APP 1872 Maxim > Design Support > Technical Documents > Application Notes > Battery Management > APP 1872 Keywords: comparator, low battery, LED, low cost, low power consumption, comparators Feb 03, 2003 APPLICATION NOTE 1872 Low-Battery Indicator Is Low Cost, Highly Efficient, and Environmentally Friendly Feb 03, 2003 Abstract:This application note presents a circuit that uses a low-power CMOS comparator to provide an LED visual indication of a low-battery condition. This LBO (low……