6 Volt regulator circuit using 7806

admin November 16, 2018 26 Comments

6 Volt Regulator using IC 7806


Here is the elementary 6V 1A power supply circuit using 7806 IC. The 7806 three-terminal positive voltage regulator is available in the TO-220/D-PAK package making them useful in a wide range of applications. 7806  employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If proper heat sinking is provided, it can deliver over 1 ampere output current.

6 Volt Regulator – Parts List

Voltage Regulator IC7806
Transformer230V Primary
9V Secondary
Diode2Amps Bridge
C2, C30.01uF

Voltage Regulator Circuit Diagram 

6 Volt regulator circuit

6 Volt regulator Circuit Diagram

Pin out of 7806


From the 78XX Voltage Regulator Integrated Circuit series, 7806 IC is used to regulate the output voltage to 6 Volts (Fixed constant value with minimal fluctuations). Many chip manufacturing companies provide this IC with different output current and over-current protection characteristics. Each IC may have different output current characteristics varying from 1 Amp to 1.5 Amps. Refer datasheets to know which one you will need to design your 6V regulator.

The 7806 IC is also available in T)-3, TO-252, TO-92 & SO-8 packages.


  • If 2A bridge is not available make one with four 1N 4007 diodes.
  • Fit a proper heat sink with 7806 if your circuit draws  more than 400mA current.
You may also like: 9V Regulator Using 7809 IC

We have more interesting Power Supply Circuits, that you may like to read;

1. Adjustable Voltage Regulator

2. Dual Variable Power Supply

3.  Simple Power Supply Circuit

4. Transformer less Power Supply

5. 5 Volt Power Supply
  • Abdullahi sajo kitako
    May 25, 2014

    pls i need a report project on smoke detector

  • Mostafa Hanafy
    January 25, 2014

    what is the name or value or information about this bridge in the circuit … please i need a quick answer 🙂 ?

  • Esangbedo Solomon
    July 30, 2012

    Good Day Sir,

    Please I need a full detail on Multiple Voltage Regulator. I am a final year student of the University of Port-Harcourt , Nigeria. My project is based on Construction, Design and Analize ”MULTIPLY VOLTAGE REGULATOR”. My email is (esangbedosolomon@yahoo.com) Please I need urgent response from anyone.

    Thanks so much

  • saurabh
    June 15, 2011

    i am making a secure digital access system using ibutton pls tell me how i use 7806 voltage regulator

  • Seetharaman
    May 12, 2011

    Hi Shruthi the IC is a fixed 8 volt series pass regulator input for the IC can be between 11volt and 35volt. It has built in voltage reference, comparators, current sense limit, thermally safe area of operation and series pass transistors. kindly refer Motorola datasheet and its internal drawings.

  • shruthi
    May 12, 2011

    plz xplain abot working of the 7806 regulator

  • Tks…

    This information really helped me, I am sharing with a few friends….

  • romeo
    March 24, 2011

    i just want to know the calculation of the 6 Volt Regulator using IC 7806 u’ve post .. will u please send me the complete calculation to this email add… cabalanromeojr@yahoo.com
    tnx…. asap.

  • March 20, 2011

    thanks verry verry mutch

  • Kelechi
    February 23, 2011

    please i need information/circuit diagram on fire detection and fire suppression systems in an aircraft specifically in the cargo compartment. thanks

  • Bernard
    December 21, 2010

    thanks 4 for supports .I’m interested in electronics and i want to build a battery charger for 5v and 250mA please send to me circuits and calculation.I’m looking forward .

  • Seetharaman
    December 4, 2010

    Hi GBENGA you can use the same circuit with additional PNP transistors. you require 6 volt at 4amps you can use the following principle as done for 12 volt.

  • Gbenga
    December 3, 2010

    Hi Sir, could You please assist by sending me a circuit diagram with the components on how to build a power supply that will power a 6volts 20watts bulb.


  • Seetharaman
    November 5, 2010

    Hi Manjunath you can use this circuit, instead of transformer you can use your generator. (Pl check the circuit current capability as the mobile phone requires around 400mA at 6 volts)

  • Manjunath
    November 3, 2010

    Dear Sir,

    I am using Generator as as Photocopier Stepper Motor, it is generating upto 18 volts AC, i converted it to DC using Bridge rectifier it showing 16 volts DC and now i wanted to reduce it for 6 volts (For mobiling battery charging). Is it possible from this circuit.
    Please reply me i am very much interested
    Thanking you,
    With warm regards
    Manjunath Kulkarni
    Cell: +91-9986406034

  • JD
    October 8, 2010

    plz post pcb layout of dis circuit………

  • V.Guna
    August 16, 2010

    I need to lear more aobut the fire alarm system

  • Dan Wasonga
    June 18, 2010

    hi am a final year Aeronautical engineering student,i would like you to send me some details on voltage regulators for 28 v dc.Thanks

    June 12, 2010

    please i need full detail on automatic voltage regulator, i am a final year student and project is base on construction of AVR. please i want send full detail to me through my email(adedayo_dml@yahoo.com) thanks

  • george
    December 9, 2009

    i just want to know how to control current o/p.
    cos i need .5A & .21A o/p, please post the calculations..
    thank u

    • admin
      December 17, 2009

      First of all 7806 alone can’t deliver more than 1A. You need extra circuitry to boost the current capability.Using a series pass transistor is a good option.

  • aditya jadhav
    August 21, 2009


    ohhh oh yaar
    i want 6 volt to 3 volt converter 🙁
    plzzzz plzz
    give me

    with warm regard
    jadhav aditya

  • aditya jadhav
    August 21, 2009


    thanks 4 support yaar 🙂

    with warm wish
    jadhav aditya

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