Battery. - Here is Circuit Schematic Motorcycle Battery Level Indicator using LM2903 IC like in figure 1 below. This circuit based on LM2903 IC as dual comparator switches the outputs.
Circuit Schematic
Component List
Description
Circuit schematic like in figure 1 above is Circuit Schematic Motorcycle Battery Level Indicator using LM2903 IC. This battery level indicator offers (2) incandescent lamps that light up progressively as the voltage increases. It is an adaptation of the 12V battery level indicator and is suited for motorcycle application. The reference voltage is from a 6.2V zener regulator and an LM2903 dual comparator switches the outputs. High current 2N4403 transistors drive the lamps.
Circuit Schematic
Component List
Description
Circuit schematic like in figure 1 above is Circuit Schematic Motorcycle Battery Level Indicator using LM2903 IC. This battery level indicator offers (2) incandescent lamps that light up progressively as the voltage increases. It is an adaptation of the 12V battery level indicator and is suited for motorcycle application. The reference voltage is from a 6.2V zener regulator and an LM2903 dual comparator switches the outputs. High current 2N4403 transistors drive the lamps.