A High Voltage Power Supply for your Lab
Built and Tested by Jean-Louis Naudin
Cliquez ici pour la version Française
created on February 11, 2003 - JLN Labs - Last update February 13, 2003
Toutes les informations et schémas sont publiés gratuitement ( freeware ) et sont destinés à un usage personnel et non commercial

All informations and diagrams are published freely (freeware) and are intended for a private use and a non commercial use.

You will find in this document a very useful High Voltage Power supply ( Lab HV-PS ) diagram for your personal laboratory experiments. This is a dual outpout power supply :
- the first output is a Low Voltage output fully tunable between 0 to 70 V DC,
- the second output is a High Voltage output fully tunable between 0 to 30 KV DC

This Lab HV-PS is able to lift off a Lifter v2.0 without problem at a voltage about 21 KV. This allows you to conduct some interesting experiments about the Lifter hovering by tuning the HV output level.

Click here to download the BU508D datasheet

Detailled diagram of the flyback transformer : HR7839 ou 1352.5003

This Lab HV-PS uses common and cheap electronic components that you can buy in any electronic hobby shop.

Note : It is recommend to have one or two BU508D transistors as spare parts, because it is very sensitive to HV pulses.

To build the Lab HV-PS, you may use any common flyback transformer rescued from an old color PC monitor ( see below ).

If you want to see a simple method to find yourself the pinout of your FB transformer, click here

BE CAREFUL, USE EXTREME CAUTION !!!, this device uses High Voltage, ALWAYS switch off the input and discharge the output to the ground through 10k/2W resistor before touching it. These plans are not intended for the inexperienced. User of this document should be very carefull and experienced in High-Voltage electronics to try anything out ! If you do it the risk of any results is just yours. I take no responsibility of anything that might happen.

You will find the :
- transformer 75VA 2x24V 1.56A at
Electronique diffusion ( Ref : ALTR75VA224V )
- flyback transformer HR7839 at Electronique diffusion ( Ref : TVTHR7839 )
- bridge rectifier 200V/5A at Electronique diffusion ( Ref : DIB80C5000 )

Email : JNaudin509@aol.com

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