# Light Up One By One Or Turns Off Led Volt Meter Circuit Circuit                                                  ## Light Up One By One Or Turns Off Led Volt Meter Circuit Circuit

02/01/2011 · Hi all Please help me, I would like this circuit to indicate up to 15 volts , what components should be added ? Here is a Simple LED Volt meter...

When the battery holds 13.6 volts or more, all the Zener breakdown and all LEDs light up. When the battery is discharged below 10.6 volts, all the LEDs remain dark. So depending on the terminal voltage of the battery, LEDs light up one by one or turns off.

When the battery holds 13.6 volts or more, all the Zener breakdown and all LEDs light up. When the battery is discharged below 10.6 volts, all the LEDs remain dark. So depending on the terminal voltage of the battery, LEDs light up one by one or turns off.

When the battery holds 13.6 volts or more, all the Zener breakdown and all LEDs light up. When the battery is discharged below 10.6 volts, all the LEDs remain dark. So depending on the terminal voltage of the battery, LEDs light up one by one or turns off. LED Volt Meter Circuit Circuit diagram:

LED Volt Meter Circuit Diagram: The nominal terminal voltage of a Lead Acid battery is 13.8 volts and that of a Tubular battery is 14.8 volts when fully charged. The LED voltmeter uses four Zener diodes to light the LEDs at the precise breakdown voltage of the Zener diodes.

more, all the Zener breakdown and all LED s light up. When the battery is discharged below 10.6 volts, all the LED s remain dark. So depending on the terminal voltage of the battery, LED s light up one by one or turns off.

LED Volt Meter Circuit diagram: Here is a Simple LED Volt meter to Monitor the charge level in Lead Acid Battery or Tubular battery.The terminal voltage of the battery is indicated through a four level LED indicators. The nominal terminal voltage of a Lead Acid battery is 13.8 volts and that of a Tubular battery is 14.8 volts when fully charged.

26/08/2012 · Here is a Simple LED Volt meter to Monitor the charge level in Lead Acid Battery or Tubular battery. The terminal voltage of the battery is indicated through a four level LED indicators. The nominal terminal voltage of a Lead Acid battery is 13.8 volts and that of a Tubular battery is 14.8 volts when…

12 Volt Battery Monitor Circuit With LM3914. ... R3 = 3K9 to give us an 11.89V to 12.65V voltage range – i.e. the first red LED (D1) will light up at a voltage of 11.89V which is a virtually empty 12V lead acid battery, and the last green LED (D10) will light up at a voltage of 12.65V corresponding to a full 12V lead acid battery. The other ...

In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current supply (either DC or AC, see below) to light the LED at the required brightness, but must limit the current to prevent damaging the LED.The voltage drop across an LED is approximately constant over a wide range of operating current ...