Friday, April 1, 2016

Circuit Schematic Flashing Battery Monitor using Transistor

Eltronicschool. - This is simple circuit schematic that make the LED flashing as long as the battery level still above the set level. In here we will give you specific circuit schematic using transistor and LED to build this circuit. This circuit named Circuit Schematic Flashing Battery Monitor using Transistor like in Figure 1 below. (You also can read: Circuit Schematic 12V LDO Solar Charge Controller using MOSFET)

Circuit schematic

Component Parts
  1. Transistors
  2. LED
  3. Resistors
  4. Capacitors
  5. All components see in Figure 1 above
Description

Circuit schematic like in Figure 1 above is Circuit Schematic Flashing Battery Monitor using Transistor. According Circuitstoday site describe that the transistors Q1 and Q2 are wired as a complementary astable multivibrator.The circuit can operate from a voltage range from 6V to 12V. The voltage level at which LED has to stop flashing can be set by adjusting the preset R4.When the battery voltage reaches the threshold the flashing frequency decreases and when the voltage goes below the threshold the LED becomes OFF.The diode D1 is used to compensate the changes in the base emitter voltage of Q1 due to temperature changes. Read more here.


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