13+ Battery Level Indicator Circuit Diagram. A simple low battery level indicator circuit with diagram and schematic using ic mn13811g and flashing led. In this circuit, d2 is a reference zener diode which is rated 5.1v 5w so it will regulate the output to 5.1v across it.
By using this circuit, we can increase the lifetime of battery. In general, in mobile phones, the battery levels is displayed in dot or bar style. The simplified lm3914 block diagram is to give the general idea of the circuit's operation.
Here we present a battery level indicator circuit that lets you know the battery level of a device from the number of leds that are glowing.
13+ Battery Level Indicator Circuit Diagram. To help clarify, attached is a power distribution diagram. Bc 547 is an npn bipolar junction transistor that is used to amplify current to a certain level. International journal of innovative and emerging research in engineering. Battery level indicator will let you know the status of battery of a device just by glowing the number of led's.