Added: 2 years ago
From: vegmatic1966
Views: 40,178
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  • Thank you for sharing this.

  • try to use AN7812 the 9 volts will be at 13 volts the IC max upto 3a.. you must bias the Collector to the Base instead Emitter to Base...

  • @dmctactic It is not for commercial design. I got several 555s for free so cost is a non issue. This was mostly to show how the voltage doubler effect works.

  • @vegmatic1966 Well I thought it was interesting! The 555 is such a great chip, you can do hundreds of thngs with it in many different types of circuit...

  • Thanks, its always interesting to learn something new. If you are using it to

    power something producing audio , I would imagine that it should be of a

    frequency above the audio range too.

    It is sort of like the AC voltage doubler principle of charging two caps in series

    to double the voltage but with a square wave from a DC source

  • Thanks for posting this, coils and transformers are not my specialty. But if you increase the value of the cap to say a few hundred uF, and increase the 555's frequency, would that increase the voltage? Or is there some formula I can use?

  • Very well done, interesting and I learned some--thanks1

  • huh

  • that's pretty cool, and even with the low 200mA current (or 100 on the cmos version), that's still enough juice to run some circuitry off of a smaller dc battery. cool video, thanks for sharing!

  • Actually much less current. Since it is switching, and boosting voltage (less current), the over all current is much less. Adding a complementary pair of transistors to the output would allow for higher output currents.

  • very nice good job. can we see the current.?

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