How to make a high voltage DC generator/power supply using a flyback transformer and a Cockcroft-Walton voltage multiplier or 30kV tripler. This one generates up to 30 kilovolts with milliamps of current. I demonstrate it using sparking and by powering a lifter or ionocraft.
It uses:
- 220 ohm, 3 watt resistor
- 27 ohm, 2 watt resistor
- 4700 microfarad, 35 volt electrolytic capacitor
- two 2N3055 power transistors
- flyback transformer with no additional electronics attached to it
- 30kV Cockcroft-Walton voltage multiplier, also known as a 30kV tripler
I show how to power it using my homemade 24 volt power supply, a simple wall adapter and a laptop power supply.
For a video showing how I fixed this power supply when it broke, watch this:
http://youtu.be/Kb0WwsJgTMM
For details about my homemade 24 volt power supply, go to:
http://rimstar.org/equip/24v_pwr_supply.htm
For my webpage about this high voltage power supply, go to:
http://rimstar.org/equip/30kv_pwr_supply.htm
If you want to make your own tripler/Cockcroft Walton voltage multiplier, see my webpage here as a starting point:
http://rimstar.org/equip/negative_voltage_multiplier.htm
For a flyback transformer without a built-in diode (the one for this power supply must not have a built-in diode) see here:
http://www.ebay.com/sch/sis.html?_nkw=04+2751+60108+Replacement+For+Sanyo+TV+Flyback+Transformer+275160108&_itemId=121034000417&_trksid=p2047675.m4099
The Sanyo F 0241 listed there might be a good one, but I can't say for sure.
WARNING: This power supply delivers a lethal amount of current, in the milliamps. It is not like a small homemade Van de Graaff generator whose current is in the microamps. Notice the precaution of using a grounded discharge stick in this video. Do not make this one unless you understand how to use it safely.
Also watch:
How to mount/attach transistor to heatsink (2N3055)
http://youtu.be/hNRacVQRgBc
Lifter Voltage/Current and Smoke/Aiflow Test Measurements
http://youtu.be/LOGAaObsN4g
How to Make High Voltage Capacitors - Homemade/DIY Capacitors
http://youtu.be/MPD7skZ8OSo
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http://rimstar.org
Music used throughout:
Bicycle Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
ISRC: USUAN1100870