Sonic Dissociation: 10MHz, 1KV, 1KW Switching Power Supply

last updated:24 Oct 2003

All informations in this page are published free and are intended for private/educational purposes and not for commercial applications .

Sonic Dissociation

Here you have the Monster Truck of Switching Power Supplies. This is a full wave, DC-10MHz, 1kV, KW plus, switching power supply. The device is a fairly simple device, that is capable of driveing anything from high power Piezoelectric devices to Solid state Tesla coils. This device uses 4 opto-isolators 6n137, driving four UCC27321 fet driver chips, driving four RF power FETs IXYS IXFH12N100F (12A 1kV 13MHz Class F power fet) in a full wave bridge configuration. Each FET is cooled by a CPU Heatsink and fan. This thing is really something else. Thanks Paul and Steve for advice on designing this guy. Also is there is enough interest I may decide to breadboard this up nice and make it in to a kit for sale. (time depending, we'll have to see)

OK, Here is a BIRD RF power meter (with a 1kW slug) showing more that 500W going in to the piezoelectric nebulizer. To do this, I piped the power through an RG-58 (50 Ohm cable). This also allows me to pipe the RF anywhere in my garage (even to my new 8.5 in diameter Tesla coil) but that's a different story. Anyway, There is enough power here to make the water try to leap right out of the bowl...

Ok, here is what happens when you put about 500W in to the Piezoelectic Nebulizer disc. On the Left the unit is off, on the right the water is leaping up in a stream (at the left where the sound waves focus agains the wall of the container) and creating a stream of water that jumps to the right in a parabolic arc (picture on right). Also fog is produced at the focus, where the water leaps out.

Here is a close up of the stream of water jumping out of the surface of the water. Ever seen anything like this before?? Its definately unusual, to say the least..

Here are some examples of how much fog this device can produce. The left two photos are with the unit off, and the right shows the unit in operation. The operation frequency is about 2.4 MHz. I have a spring that holds the nebulizer unit in the back, and I had to replace it. This caused the resonance frequency to change, so the spring must have been working as an inductor as a matching network for the capacitive peizoelectic load.

Copyright Information

Unless otherwise noted, all materials at this site (including without limitation all text, html markup, graphics, and graphic elements) are copyrighted ), 2002 by Reginald L. Jaynes. The material available through this site may be freely used for attributed noncommercial educational purposes only. We ask that due credit and notification be given the author.  

All materials appearing on this website may not be reproduced, stored in any retrieval system, or used in any way for commercial purposes without the express prior written permission of the copyright holder.  

Disclaimer: The author assumes no liability for any incidental, consequential or other liability from the use of this information. All risks and damages, incidental or otherwise, arising from the use or misuse of the information contained herein are entirely the responsibility of the user. Although careful precaution has been taken in the preparation of this material, we assume no responsibility for omissions or errors.  

HOME

Send e-mail to: dr_jaynes@hotmail.com