Copying this from http://www.kickstarter.com/projects/398893778/teslatronix-tesla-power-for-the-masses for archive purposes.
Boasting one of the most simple Tesla coil driving circuits ever, TT makes wireless electricity simple, easy, and cheap for everyone.
- Launched: Feb 4, 2013
- Funding ended: Mar 6, 2013
The project is near completion. Thank you for the support. We will continue to post project updates at www.teslatronix.com until we have fulfilled all our backers! Once all the obligations to our backers are fulfilled, we will start to offer kits directly from the website.
True wireless transmission of power is possible, it is here, and it is simple! Admittedly, the production value of these videos is sub par (all were created as mere demonstrative videos for the public), however the results speak for themselves. All completed Tesla Tronix Tesla coils will have included wooden bases. The coils featured in these videos are for demonstrational purposes only, and are not finished products.
When people think of a Tesla coil, they think of a device that is designed to transmit power wirelessly. The Tesla Tronix Tesla coils, loosly based off a slayer exciter circuit variant require no capacitors, no spark gaps, and no AC power source to function. In fact, the Tesla Tronix Tesla coils can be powered off almost any DC power source from 5V-35V, with a current draw far less than one amp, and in most cases, between 250ma and 700ma. So what does this mean? Anyone can now fully enjoy and study the properties of a traditional Tesla coil, without the cost and complication in doing so.
These Tesla Coils resonate well with LED lighting and Florescent tubing. With proper grounding at the receivers, usable current can be extracted right from the air around you!
The range of these tiny DC, solid state Tesla coils is phenomenal. Be prepared to be able to light florescent tubes from over 5 feet away!
There is a wide range of potential applications for such a device, as demonstrated in the following video:
In this video, I use a mere 9V battery from my smoke detector to provide candle light in my dining room during the hurricane Sandy power outage this past fall.
So what exactly drives the coil?
A handful of components are responsible for the “magic” behind this circuit. Any DC source fed to V + and - as low as 5v 100ma can power these circuits. Let’s say you wanted to use your laptop charger to power the coil. Average current draw from your average 19V laptop charger would be 600mA(or less) at 19V. The charger can provide about 4 amps (depending on the type of laptop charger) but in reality it needs less than one amp. So any DC source to about 30V at 1A can be considered safe with a good heat sink on the transistor.
The final product will consist of 5 main components, each will be interchangeable with different lengths of L2.
Toroid: The top load of the solid state Tesla coil. This is the antenna through which the majority of the power will be out-put from. It looks like a coil, however both ends of the wire are soldered together, making sure a voltage difference of 0V across it. The more copper on the toroid, within reason, generally will improve the output distance of the coil. The Tesla coil will in fact function without a torrid, however the output will be dramatically decreased. The wire toroid design may be substituted for one of a more traditional design, or may appear different than in the videos, but will serve the same function in the end. This is also a testament to the robustness and flexibility of the circuit overall.
L2: The L2 can vary in the number of windings from 500 turns all the way up to 2500 turns and beyond. The more turns on L2, the higher the final output voltage, and the longer range you should expect from your Tesla Tronix Tesla coil. Wire, when stretched out in length, has a resistance. Too many windings, and the circuit will not perform optimally. 2500 turns is approaching the upper limit, but winding a larger one and experimenting with it couldn’t hurt! All Tesla Tronix L2s will be lacquer coated for durability, and to prevent ambient temperature differences from unwinding the coil due to expansion and contraction.
L1: The L1 also dictates the final output of the coil. The fewer the number of windings, the better for this coil. As low as 4 turns on the L1 have been effective with a 2500 turn L2. Too few turns for too large a coil will result in difficulty in getting the circuit to resonate.
The board: As stated previously, the board that drives the entire circuit only consists of 4 main components: A resistor, transistor, and two diodes. There will also be terminals on this board for the connections for V+ and -, L1+ and -, and a terminal for a connection from the base to the bottom lead of L2.
The base: A nice wooden base will be the platform upon which the erected Tesla coil will sit. A notch will be cut into the base so the circuit board can be oriented in such a way to allow a wide range of heatsinks for the transistor.
All complete Tesla Tronix Tesla coils will be fully tested before shipping. Batches of L1s and L2s and toroids will be paired for optimum performance. Considering that any particular board will drive any reasonable combination of L1 and L2, there is no need to have different board types for the different coil combinations.
Each individual component can be manufactured on an individual basis, then mated to the other 4 main components based on the order. A serial number will be assigned to the coil and placed on the 5 major components and the circuit will be ready to ship. For coil/kit combinations, only the L2 will receive a serial number.
These coils are perfect for the educational sector. Students can be instructed to assemble and document their findings related to these devices. The simple construction, design, and low component count achieve exceptional results, yet will engage students directly in a fairly un-known realm of technology. An anomaly as far as traditional electronics kits are concerned, a new project with exciting (and possibly limitless goals) will easily draw the attention of your physics, math, electrical and general science student.
If you or someone you know is an electrical hobbyist of any sort, and are looking for something new, this is the project for you! I have yet to find one instance in where an individual only stopped at one coil. The possibilities are limited to your imagination!
Everything will ship from Allentown, PA with all items aquired from the United States and around the world. Your Tesla Tronix Tesla Coil will be hand made in the United States and shipped from north east Pennsylvania. A small friends and family team comprised of engineers and skilled craftsmen is standing by to take initial orders. With your support, we will be able to take our concepts to the next level.
As with any traditional Tesla coil, the risk of minor shocks and burns are present. However, unlike other Tesla coils, this type is safer in the sense that outright electrocution is near impossible. However, This device does operate at frequencies between 540Khz to about 1.5MHz .
DO NOT use your Tesla Tronix Tesla coil near any sensitive electronic equipment while in operation, this includes but is not limited to: cell phones, MP3 players, laptops, tablets, cameras, computers or any other low voltage or electrostatic sensitive devices.
Tesla Tronix is not responsible for mishap or misuse of this, or related devices.
BE WARNED. YOU WILL HAVE FUN with a Tesla Tronix Tesla coil.
Risks and challenges Learn about accountability on Kickstarter
We have various distributors from all over the world for the specific components we need, and have tested several of these distributors and have had a 100% success rate for acquired items. In addition, the circuit and its construction are versatile enough that there are several interchangeable components should the supply of one specific component become interrupted. Bulk manufacturing processes for the L2 are ready to go, hand production of the circuit boards can be scaled based upon demand, however this is the internet and the best-laid plans of mice and men oft go astray. Our original group of backers can rest assured that their items will be received within the reasonable time frame allotted, and any setbacks will be directly communicated to all those involved with the project. If the demand exists, TeslaTronix will be continue to produce product on a more sustainable schedule. A website is in the works which will be a portal for all things related to these circuits, and other similar DIY projects!
Again, these are experimental devices. Extreme caution should be used when developing or running these devices. These devices are not intended to replace any commercially available product, and are for experimental use only.
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Raised in north east Pennsylvania, I always loved the most interesting intricate things in the world- electronics, the solar system, and the outdoors in general. Always fascinated with what made electronics tick, I studied at the Pennsylvania State University for Electrical Engineering Technology, and graduated in 2008 with a BS.
I was always better in the lab than on paper, so recently I set a goal for myself to design a Tesla coil with a very large output, using only DC voltage. I stumbled upon the many variants of solid state Tesla coils, which ended up being the magic bullet for my problem. There is a lack of “official” information related to these devices, so I hope to be part of the wave of individuals to start pushing this information out to the masses. Information on this circuit can be found on the internet dating back to 2009.. and earlier, but I never In my studies came across such a device whose sole purpose was this- the easiest way to transmit usable power wirelessly.
I consider myself to be a patriot, and a supporter of the fundamentals of the United States Constitution and an advocate of free knowledge. Your contributions will be the kickstarter into more research and development of these transmitters, all done in the United States!.
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