I am interested in making a mini, potentially portable ion thruster.

The Question: Is it possible to create a boost converter that takes low voltage batteries ranging from 3.7V to 24V and boost that to 20KV or higher which is continuous voltage (not pulsed)?

The Reason: So far I have used an old 20kv AC DC power supply to make a ion thruster, but now I would like one that doesn't necessarily have to be plugged into the wall.

I have looked online and have seen high voltage inverters, the problem is that they are too low in voltage output to be effective (and AC), or they have high voltage output but its pulsed - and I would like a continuous flow.

Thanks and I look forward to hearing your comments!

  • \$\begingroup\$ Keep in mind that you'll need to draw a lot of current from your batteries to get a little current out of the output. I imagine you probably know that, but it's important to keep in mind when selecting batteries! \$\endgroup\$ – Hearth Dec 4 '18 at 2:03
  • \$\begingroup\$ Start here. They have written a book, too. \$\endgroup\$ – jonk Dec 4 '18 at 2:42
  • \$\begingroup\$ 6 kV boost circuit from 3 volt battery could be used as basis. Add more voltage doublers to get more output or use higher turns ratio in transformer. I used this type of circuit to generate 55 kV (very carefully) once. \$\endgroup\$ – Andy aka Dec 4 '18 at 8:14

Use your boost convertor into a Diode pump .You will want many stages but the individual voltages are more managable like say 40 Stages at 500VDC each .This means fast diodes ,Caps ,and boost mosfet that see only 500VDC .This is my preferred wat to make high DC voltages at low currents .

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  • \$\begingroup\$ Thanks for your quick reply! I will look into this. \$\endgroup\$ – The Amateur Dec 4 '18 at 11:33

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