6 to 12 volts converter

6V to 12V DC Converter Circuits

Here are some of 6V to 12V DC converter circuits that can be used to convert a small voltage of about 6 volts to a higher voltage of 12 volts but ofcourse with a lower current rating.

6 volts to 12 volts converters

This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.


Related Products: Power Management | DC to DC Controller



6v 12v converter

Parts List:
R1, R4 – 2.2K 1/4W Resistor
R2, R3 – 4.7K 1/4W Resistor
R5 – 1K 1/4W Resistor
R6 – 1.5K 1/4W Resistor
R7 – 33K 1/4W Resistor
R8 – 10K 1/4W Resistor
C1,C2 – 0.1uF Ceramic Disc Capacitor
C3 – 470uF 25V Electrolytic Capcitor
D1 – 1N914 Diode
D2 – 1N4004 Diode
D3 – 12V 400mW Zener Diode
Q1, Q2, Q4 – BC547 NPN Transistor
Q3 – BD679 NPN Transistor
L1 – See Notes on the website
MISC – Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board

This 6V to 12V converter circuit is made with an IC from SGS with several additional components. The IC is a TDA2003 but it can be replaced with a TDA2002.
The cost of building the 6volts to 12 volts converter should be low enough to justify constructing it instead of modifying the entire equipment setup to work directly with a 6 volts power supply. The two principles of simplicity and functions properly without the need of the transformer.

6 to 12 volts converter

This is a Simple Switcher step-up voltage regulator made by National Semiconductor, (part number LM2577-ADJ). Together with a few extra components, a heat sink and some wiring, it is possible to generate over 1A from the battery of an Austin. The output connector is taken from a car charger extension lead, so that a phone or a sat-nav just plugs straight in.

6 12 converter

This 6V to 12V dc-dc boost converter can drive a load in 12V about 3A current.The 555 timer IC is operated in astable mode, generates about 29Khz frequency of about 54% duty cycle drives the input of TIP41C transistor.1000uF capacitor smoothens the output voltage of the dc-dc converter.LED and 1.5Kohm resistor serves as indicator and load for output stability when no load is connected.You can add a 12V zener diode (1N5242B)across output to ground for further output stability.


555 voltage converter

Do you know some other designs of 6v to 12v converters? Then please write a comment and post the links in it. We will read it and add it to this list.


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  • Viswanath

    Hi.sir.i want 6v,10mA to 12v,1A dc to dc converter.

    • suraj

      u can made a transformer of 6-0-12
      10mA to 1A by taking out loops by measureing current at every turn

  • Matr

    I think these ideas are simple, some of the responses are laughable like a 2 phase being three phase?? FETS are amazing and can do much more then standard transistors with much less size, guess why? They are harder to break at maximum conductance. Why not use FETs to design a sine wave circuit with high current capacity? I will design one using my imagination soon.

  • shahmir

    How to convert DC 12 v to 24 v ?

  • romeo

    Please help me about this matter,I have a 6 volt battery charger,using an ic 7806. my question is: if i replace the 7806 with 7812 will it work to have a 12v dc output?


      Romeo hi! The input voltage to the 6 volt regulator can be a problem here.All you need is a voltage that is higher than about 15 volts then it will work but lower output from the rectifier no

  • Muhammad Abu Bakar

    I want to convert 9 vdc to 12 vdc.
    load maximum is 3 Amps
    Please sent any circuit on my e-mail who solve my problem

    • markten6321gmail-com

      I need one converter circuit for dc 9 v to 12 v Can u please email it to me please Sir !

  • shankar

    Hello sir I need circuit that will convert 12vdc to 24vdc ,48vdc,72vdc and more vdc+ with altest 10 amp

    • suraj

      its better to use charger transformer

      by giving ac supply u get 12 volt to 72volt of 10 amp

    • Orun

      Don’t try messing with DC current it’s most dangerous.. What appliance are you running with those voltages? Trying to build your own crazy lab or what? :/

  • mvdaniel

    in schematic with 2003
    C4/C5 and
    C7(not C6) must be increased.

  • Taibani Imran

    Dear Sir,
    I am willing to dc to dc convertor which input will be 12vdc and output will be 5v,6v,9v and 12vdc. and all this 4 output should work on the same time.
    New I need help is there anyone will do faverme/helpme making this power suply.
    waiting for reply thankyou in advance.

    Taibani Imran.

  • rahim k vayath

    what changes should I do, in the circuit 6to12volt…. to make a 9v to 12v convertor


    Sir if i can use a 6v to 12v converter but what effect in mA.

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