• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Get free circuit help 24/7

New Projects | Privacy Policy | About Us | Contact | Disclaimer | Copyright | Videos 

Op Amp Basics | 555 Circuits | Hobby Circuits | LED Driver | For Beginners | Basic Circuits | Transistor Circuits | Voltage Regulators 

You are here: Home / Solar Controllers / Easiest Single Axis Solar Tracker System

Easiest Single Axis Solar Tracker System

Last Updated on January 14, 2023 by Swagatam 8 Comments

In this post we learn how to make a very easy solar tracker circuit using a predetermined algorithm through a 555 IC timer circuit.

Introduction

In this site I have already published a solar tracker system circuit which is intended for automatically adjusting the solar panel face such that it stays perpendicular to the incident sun rays at all instants. throughout the day.

However for this to happen whole set up involves many complex mechanisms and circuitry which may not be easy for all to assemble and implement.

If you are ready to sacrifice and ignore a few of the luxuries provided by the above dual axis tracker, then probably you would like to go with the concept explained in the present article.

The previously discussed solar tracker post included some sensors in the form of LDRs for monitoring the sun's "position in the sky" and accordingly providing the commands to the control circuit and the motor so that necessary adjustments are quickly made to the panel for maintaining the required accuracy of the panel with the sun rays.

The system requires some critical setting and adjustments, however once these are completed you just watch the whole thing do the rest for the rest of your life providing 100% efficiency with the involved electrification of your house.

Here, since we do not incorporate any sensor and the system is a single axis type can eb built very easily and quickly, but you will have to do some tedious settings in the beginning and keep repeating it once every month or so.

The efficiency of this system may well be 100% in the initial stages but will go on deteriorating as weeks progress until you refresh and restore the original settings.

This must be done in response to the changing sunrise/sunset positions of the sun through out the year.

How the Concept is Designed to Work

Now let's talk about the single axis solar tracker circuit discussed here. The concept is all about implementing a kind of primitive algorithm in the circuit.

The concept is simple, we just   note down the average time for which the sun remains active or live over the sky.

Then we adjust the speed of the motor such that it rotates the panel from sun rise to sun set more or less facing the sun throughout its rotation.

The speed of the motor thus gets adjusted which moves the panel through a angle of may be around 50 to 60 degrees throughout the stipulated period, imitating to be following the sun's track.

The circuit used for adjusting the motor speed is obviously a PWM circuit and the motor used may be a stepper type of motor or even an ordinary brush-less type will also do.

The adjustment of the speeds in response to the daylight period must be optimized for many days for making the system as efficient  as possible.

The date and the relevant of the setting of the speeds must be noted down for records so that the same setting can be applied without monitoring for the future seasons.

The following figure shows a simple motor and gear mechanism which may employed for the proposed system. The blue colored plate is the solar panel, which is fixed with the larger gear's central rod.

The lower frame must be firmly fixed on the ground.

caution electricity can be dangerous

The PWM Algorithm Controller

The following design shows the motor control module for the proposed single axis solar tracker which involves a simple circuit made from a cheap 555 IC and some other important semiconductor parts. Pot P1 should be mounted outside the enclosure in which the circuit may be covered.

P1 is the main component which  may be used for adjusting the motor speeds during different seasons of the year such that the panel rotation remains more or less synchronized with the sun  "movements".

In fact P1 may have to be adjusted very carefully such that the motor operates at some fixed speed.

The gear mechanism should be arranged such that the smaller gear and the larger gear diameters produce a constant angular movement to the panel in order to keep the panel face more or less perpendicular to the sun throughout the day.

The setting of P1 should be noted down each time the settings are refreshed corresponding to the different months of the year. This data may then be repeated for the future years.

Parts List

  • R1 = 10K
  • P1 = 220K
  • D1, D2 = 1N4148
  • D3 = 1N5402
  • T1 = 30V, 10amp mosfet
  • IC= 555,
  • C1 = 5nF
  • C2 = 10nF
  • C3 = 100uF/25V

You'll also like:

  • 1.  MPPT vs Solar Tracker – Differences Explored
  • 2.  Convert SMPS into a Solar Charger
  • 3.  I/V Tracker Circuit for Solar MPPT Applications
  • 4.  Best 3 MPPT Solar Charge Controller Circuits for Efficient Battery Charging
  • 5.  Solar Panel Voltage Regulator Circuit
  • 6.  Programmable Solar Porch Light Circuit

About Swagatam

Swagatam is an electronic engineer, hobbyist, inventor, schematic/PCB designer, manufacturer. He is also the founder and the author of the website: https://www.homemade-circuits.com/, where he loves sharing his innovative circuit ideas and tutorials.
If you have any circuit related queries, you may interact through comments, and get guaranteed replies from the author.

Reader Interactions

Have Questions? Please post your comments below for quick replies! Comments should be related to the above artcile Cancel reply

Your email address will not be published. Required fields are marked *



Primary Sidebar

Categories

  • 3-Phase Power (15)
  • 324 IC Circuits (19)
  • 4017 IC Circuits (52)
  • 4060 IC Circuits (27)
  • 555 IC Circuits (99)
  • 741 IC Circuits (20)
  • Arduino Engineering Projects (83)
  • Audio and Amplifier Projects (126)
  • Battery Chargers (83)
  • Car and Motorcycle (96)
  • Datasheets (78)
  • Decorative Lighting (Diwali, Christmas) (33)
  • Electronic Components (101)
  • Electronic Devices and Circuit Theory (36)
  • Electronics Tutorial (121)
  • Fish Aquarium (5)
  • Free Energy (34)
  • Fun Projects (14)
  • GSM Projects (9)
  • Health Related (22)
  • Heater Controllers (31)
  • Home Electrical Circuits (107)
  • How to Articles (20)
  • Incubator Related (6)
  • Industrial Electronics (28)
  • Infrared (IR) (40)
  • Inverter Circuits (98)
  • Laser Projects (13)
  • LED and Light Effect (98)
  • LM317/LM338 (22)
  • LM3915 IC (25)
  • Meters and Testers (69)
  • Mini Projects (150)
  • Motor Controller (69)
  • MPPT (7)
  • Oscillator Circuits (25)
  • PIR (Passive Infrared) (9)
  • Power Electronics (35)
  • Power Supply Circuits (86)
  • Radio Circuits (10)
  • Remote Control (50)
  • Security and Alarm (66)
  • Sensors and Detectors (132)
  • SG3525 IC (5)
  • Simple Circuits (75)
  • SMPS (29)
  • Solar Controllers (63)
  • Timer and Delay Relay (55)
  • TL494 IC (5)
  • Transformerless Power Supply (9)
  • Transmitter Circuits (42)
  • Ultrasonic Projects (17)
  • Water Level Controller (45)

Calculators

  • AWG to Millimeter Converter
  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Small Signal Transistor(BJT) and Diode Quick Datasheet
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator

© 2023 · Swagatam Innovations