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I currently have a 25 stage voltage doubler circuit I am using 50 0.1 uF x2 suppression capacitors, 50 1N4007 Diodes, and a 20 Mohm current limiting resistors at the final emitter stage. I am using 120 VAC as the initial input voltage.

I would like to increase my output voltage so I am interested in buying a higher value capacitor.

For example, if I upgrade to a 10 uF capacitor (100 times more powerful than current setup) will I need to change any other components of my circuit (e.g. the diodes)?

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  • \$\begingroup\$ What current do the diodes currently take? \$\endgroup\$
    – Andy aka
    Commented Jan 15, 2015 at 20:29
  • \$\begingroup\$ These diodes are rated for 1A \$\endgroup\$
    – presish
    Commented Jan 15, 2015 at 20:30
  • \$\begingroup\$ That is not what I asked. \$\endgroup\$
    – Andy aka
    Commented Jan 15, 2015 at 20:30
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    \$\begingroup\$ This is a highly dangerous circuit so I am not comfortable measuring the current. I do know that the current in this circuit is negligible. It is an ionizer circuit. I just don't feel safe measuring current across a singular diode. Is there any other way I can help you? I just need to know the effects of upgrading my capacitors on the circuit. What should I consider? \$\endgroup\$
    – presish
    Commented Jan 15, 2015 at 20:48
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    \$\begingroup\$ A cockroft-walton type thing? en.wikipedia.org/wiki/Cockcroft%E2%80%93Walton_generator If so, the value of the capacitors sets the maximum current and not the voltage. If you want more voltage start with more voltage. This is good. diyphysics.com/2012/02/09/… \$\endgroup\$
    – George Herold
    Commented Jan 15, 2015 at 21:15

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