Designing a Li-Ion Battery Gauge with the LM3914 - EEVblog #204

How to design, prototype and test a two cell 18650 Lithium Ion battery pack level gauge using the classic LM3914 dot/bargraph display driver chip. A favorite from Dave's youth! Dave gives you all you need to know to implement a simple expanded scale voltmeter with the LM3914, without adjustment pots to tweak. This one works from 6V to - the usable capacity of a two 2 cell Li-Ion batttery pack. Теги: lm3914,chip,circuit,classic,bar,graph,dot,project,design,electronics,breadboard,resistor,multimeter,measurement,datasheet,lithium,ion,battery,pack,gauge,level,led,display,18650,cell,capacity,parametric,,,,,expanded,scale,voltameter,LM3915,LM3916