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Thursday, January 7, 2016

555 Charge Pump

Yesterday, Ronaldo commented on the Power Brick post pleading for a voltage doubler using the 555 chip. Well, since it sounded like it was an emergency, here you go. ;) D1-2 should be barrier Schottky diodes and don't forget the jumper under the IC.

28 comments:

  1. Muchisimas Gracias!!!! saludos desde Argentina ;)
    thank you very much!!!!
    you save me, again

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    Replies
    1. ¡De nada! Happy to help you out.

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    2. Dejate de romperle los huevos al pobre flaco, Ron; a ver cuando nos juntamos a tomar una birra

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  2. I got one question,where are the utility archives?, all of them
    there are not in the TRANSFER IMAGE LIBRARY link

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  3. This comment has been removed by the author.

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    Replies
    1. You would know what is the maximum current supplied by the "charge pump"

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    2. It should get you close to 18v, though probably close to 17.

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    3. Do you know how much Current in mA?.Thanks!

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  4. Verified. Used 1n5817s. 9.27volts in 17.8 volts out.

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  5. Ty very much. Working with 1n4004 diodes. I had problems with used (salvage part) 555, but, with new ne555 works like it should.

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  6. Will it work with 4.5v to 9v?

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    Replies
    1. I think that would depend on operating voltage range on your 555 chips. Check the data sheet.

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  7. I can't find the transfer in the misc. folder. Is this in another folder?

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  8. Hi there, what is exactly use of this unit?

    Thanks

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    Replies
    1. TO use in circuits that require 18v, this pump will get close to that (~17v) if you feed it 9v, it can be used in almost every overdrive or distortion, will increase headroom.

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  9. This comment has been removed by the author.

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  10. can i use 16v electrolytics here if i want to make a 9v to 18v?

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    Replies
    1. No. Use higher rated caps that the voltage. 25v would be the minimum.

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  11. Work!!!
    Very good with OCD v1!!!
    Thanks!

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  12. Is there a power brick whcih takes 1 9v


    And comes out as multi -9v ??


    Maybe a charger with eliminates noise and hums


    And thanku for posting these im learning a lot about electronics from u and this blog

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    Replies
    1. use 7909 circuit on google,regulator negative voltage.

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    2. Can i use this instead of max1044?

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