Auto Power Supply Control from 4 Different Sources: Solar, Mains, Generator &Inverter to ensure No Break Power

Model: 3

Solderable DIY project kit for Engineering & Diploma students Worldwide

Do-It-Yourself Kit :

Includes complete hardware comprising of discrete components, modules, PCB, controller etc. and tested program code for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. (Tool kit-Multimeter, Soldering iron and program burner not included in the kit)

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The main objective of this project is to provide uninterrupted power supply to a load, by selecting the supply from any source out of 4 such as mains, generator, and inverter and solar automatically in the absence of any of the source. T

he demand for electricity is increasing every day and frequent power cuts is causing many problems in various areas like industries, hospitals and houses. An alternative arrangement for power source is a must.

In this project uses four switches to demonstrate the respective failure of that power supply. When any of the switches is pressed it shows the absence of that particular source, switches are connected to microcontroller as input signals. A microcontroller of 8051 family is used.

The output of microcontroller is given to the relay driver IC, which switches appropriate relay to maintain uninterrupted supply to the load. The output shall be observed using a lamp drawing power supply from mains initially. On failure of the mains supply (which is actuated by pressing the appropriate switch) the load gets supply from the next available source, say an inverter.

If the inverter also fails it switches over to the next available source and so on. The current status, as to which source supplies the load is also displayed on an LCD. As it is not feasible to provide all 4 different sources of supply, one source with alternate switches are provided to get the same function.

The project can be further enhanced by using other sources like wind power also and then taking into consideration for using the best possible power whose tariff remains lowest at that moment.


Easy to use, Self-explanatory kit.

All-inclusive solution kit.

Extensive audio-visuals available.

Branding-free material.

Pre-programmed Microcontroller.

Call/mail for Tech Support from 10 am – 7 pm.

Can be Customized for Arduino, Raspberry Pi, PIC


Hardware Requirements

  • 8051 series Microcontroller
  • Relay Driver IC
  • Resistors
  • Capacitors
  • Diodes
  • Crystal
  • LEDs
  • LCD/li>
  • Volatge Regulator
  • Relays
  • Lamp
  • Transformer
  • Push Buttons

Software Requirements

  • Keil compiler
  • Language:Embedded C or Assembly.

Q & A

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  1. Rated 5 out of 5

    Shashank saurabh

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  2. Rated 4 out of 5

    Sachin Prajapati

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  3. Rated 5 out of 5

    Dipen Kumar Rajak

    I come to know about your Institute through Internet and I used the Different Project topic’s as a keyword.I decided to buy a kit by seeing the picture and output video in the website.Yes it’s on time. Yes I called up and someone from your team helped me to purchase.

  4. Rated 5 out of 5


    I came to know about Edgefx through my senior. I directly typed Edgefx kits in Google.I decided to buy a kit from Edgefx by the words of my senior. And I like the complete kit.Yes the kit delivered on time with the right components.No Improvements required.

  5. Rated 4 out of 5


    I came to know about Edgefx through Internet. I used Electronics projects as a keyword to find Edgefx.I decided to buy a kit from Edgefx because Edgefx providing fully assembled kit and service.The kit delivered on time with the right components.No I directly purchased through online.No Suggestions.