newjerseyhwa.blogg.se - Voltage comparator lm339 proteus

As we will be using lm339 voltage comparator which has 4 outputs, it means we can connect 4 led’s or relays.

As you can see in the table, at different voltages we have different charge percentage. I searched for a random battery and downloaded its charge Vs Voltage table. I would appreciate your support in this way! I may make a commission if you buy the components through these links. The same circuit will also be used in making a stabilizer which I will show you in upcoming tutorials.įor advanced level battery voltage monitoring systems check the related projects section given at the end of this article. In this tutorial, you will also learn how to use a voltage comparator LM339, its basic working principle, How to set the trigger voltages to show the exact charge percentage, and then how to make a final circuit. This tutorial explains the complete designing steps. This battery voltage monitor is entirely based on the LM339 voltage comparator IC. In this tutorial, we not going to use any Microcontroller.

Battery Voltage Monitor Finally Testing:īattery Voltage Monitoring, Project Description:īattery Voltage Monitor- In this tutorial, you will learn how to display the percentage of charge available in the battery using LEDs.

Battery Voltage Monitoring, Project Description:.

As a result, output pin 1 of comparator A2 goes high to rotate motor M1 in one direction (say, anti-clockwise) and turn the solar panel. When LDR2 receives more light than LDR1, it offers lower resistance than LDR1, providing a high input to comparators A1 and A2 at pins 4 and 7, respectively. Presets VR1 and VR2 are set to get low comparator output at pins 2 and 1 of comparators A1 and A2, respectively, so as to stop motor M1 when the sun’s rays are perpendicular to the solar panel. LDR1 and LDR2 are fixed at the edges of the solar panel along the X axis, and connected to comparators A1 and A2, respectively.

These provide the signal to motor driver IC2 to move the solar panel in the sun’s direction. Light-dependent resistors LDR1 through LDR4 are used as sensors to detect the panel’s position relative to the sun. The solar tracker comprises comparator IC LM339, H-bridge motor driver IC L293D (IC2) and a few discrete components. 1 shows the circuit of the solar tracking system. The solar tracking system starts following the sun right from dawn, throughout the day till evening, and starts all over again from the dawn next day. Here is a solar tracker system that tracks the sun’s movement across the sky and tries to maintain the solar panel perpendicular to the sun’s rays, ensuring that the maximum amount of sunlight is incident on the panel throughout the day. Generally, solar panels are stationary and do not follow the movement of the sun.