The following figure shows the low voltage indicator beeper circuit schematic diagram. It operates using 12V. When idle, the current is 6mA, and active current is 15 mA. When the battery goes down under 11V, the led will active and then the alarm will sound “beep” periodically. Here is the diagram :

low voltage beep circuit diagram (click to enlarge)

low voltage beep circuit diagram (click to enlarge)

No related posts.

Related posts brought to you by Yet Another Related Posts Plugin.