#Lm339 battery level indicator how to#

The non-inverting inputs of the 3 comparators are connected to 3 potentiometers, which are used to set the voltage level that determines which LEDs will light.Īdjusting the four potentiometers in the circuit will achieve the desired effect. The output of the first comparator is connected to the inverting input of the other three comparators. The advantage of these voltage comparators is that they have a very high input impedance and do not load the output of the amplifier that sends the audio signal to the speaker. In this way, it is possible to have the same signal at the output as at the input. For sensing the terminal voltage level of the battery series, LM339 IC isused.

The first comparator is used as a voltage follower. C2 capacitor blocks any direct current voltage component.

The input signal is applied to a resistor-potentiometer network which is used as a voltage divider, controlling the amplitude of the signal that is applied to the first comparator. This integrated circuit has 4 comparators that can be powered by a single polarity voltage source. The green LED lights first when the signal voltage is low, then the yellow LED for medium signal levels, and when the signal level is higher, the red LED lights.Īn LM339 integrated circuit is used to achieve our goal. Each of them is connected to an LED through a limiting resistor. Here is the PCB.The circuit has three exits. rgb LED Controller Hi guys in this project I shall show you that how you can make a RGB Light cntoller.Christmas tree with arduino uno Step 1: Circuit DiagramThe project is super easy for everyone to make, and no specific knowledge is.Christmas tree with arduino uno Christmas tree with Arduino UNOStep 1: Circuit DiagramThe project is super easy for everyone to make.LM339 can work on single or dual supplies, it has a open collector output that can drive 15mA, low power consumption. 1, on-board precision voltage detection chip and power regulator chip 2, onboard four battery indicator LED lights, three colors display, red, yellow, yellow, green representing 20, 50, 80 and 100 of the electricity 3, set aside all the way battery testing interface, and two mounting holes located 4, PCB size: 22.2 (mm) x17. Adjustable Switching Power Supply 5.1 to 40V, 2.5 Amp using L4960 In this article, we present an adjustable power supply with a stabilized output that varies from 5.1. 1.73K subscribers Subscribe 27K views 8 years ago Proteus This is a Battery Monitor Circuit. This circuit uses a LM339, a quad comparator.70W Stereo HI-FI Power Amplifier - High Fidelity using two TDA2050 IC's + PCB The TDA2050 Integrated CircuitsThe TDA2050 is a monolithic integrated circuit in a Pentawatt? packag.300W RMS Power Amplifier - 2SC3858 and 2SA1494 Transistors This amplifier has an excellent audio quality, and use four output power transistors, it reaches a s.All Category amplifiers 50W Power Amplifier With LM3886This is my second encounter with LM3886.Rotary switches controller Rotary switches move in a circle and can stop in several positions.All Category amplifiers All Category amplifiers50W Power Amplifier With LM3886This is my second encounter with LM3886.

amplification process All Category amplifiers50W Power Amplifier With LM3886This is my second encounter with LM3886.12v Battery Voltage Monitor using LEDs and LM339 comparator. 300 watt amplifier Introduction to the AmplifierAn amplifier is an electronic device or circuit which is used to increa. Home/ battery level indicator proteus simulation battery level indicator proteus simulation.

#Lm339 battery level indicator how to#

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