Battery Level Indicator Circuit Diagram Using Lm3914. For example six led s are glowing means battery capacity 60 remains. The ic is designed to operate as battery level indicator.
The core of this battery level marker circuit is lm3914 ic. Lm3914 is the heart of this battery level indicator circuit. Two or more lm3914 ics can be cascaded together to get an extended display.
In this circuit there is no need for resistors in arrangement with leds because the current is directed by the ic itself.
A single pin changes the display from a moving dot to a bar graph. The core of this battery level marker circuit is lm3914 ic. The schematic of two lm3914 ics cacaded together to get a 20 led voltage level indicator is shown below. For example six led s are glowing means battery capacity 60 remains.
