Solid state coil driver theory richies tesla coil web page. Tuning if the sparkgap is operating, but either a weak discharge or none at all appears at the top of l2, the coil will have to be. A large unit can produce a continuous spark of a length exceeding the height of the coil. Introduction to theory, design, and construction of aircore resonating transformers. The solid state tesla coil is sold as a minimal kit requiring the purchaser to assemble the device in order to make it operable. A very fast 100mhz oscilloscope and a large bag of mosfets are essential. As my first post, i would like to know about the basics and advice about the solid state tesla coil. More recently, solid state power electronics have been used to drive tesla coils, allowing much greater control over the arcs and permitting the production of music. Designing your tesla coil introduction when i was in the process of designing my first tesla coil in may of 2002, i was hardpressed to find one source that comprehensibly described the. As the technology developed three general forms of tesla coil emerged. As an introduction to the world of solid state coiling, i have chosen to replicate steve wards class e tesla coil.
On this website i will explain my recent sstc solidstate tesla coil effort, resulting in a reliable, highly controllable, userfriendly coil that can be configured to put out an astounding variety of different spark effects up to 9. The difference between a conventional sstc and the drsstc is the. Here, i explore the solid state option which may be preferable in some situations. With this coil, tesla was able to generate voltages of such magnitude, they would shoot out of the apparatus as bolts of lightning. This paper discusses many of the factors that influence the design of a solid state resonant coil driver.
Make a simple solid state tesla coil with a pwmocxi. The subject matter in this file assumes you already have some electronic project knowledge and skills. The corums present the necessary solution technique in their manual 3 and also the. The solid state tesla coil is a device which is capable of producing extremely high voltage. Here we can see the solid state tesla coil working in its best configuration. Lossy capacitors 1 dielectric loss capacitors are used for a wide variety of purposes and are made of many di. A solid state tesla coil does not require this, as it works with mains voltage.
What this means is both the secondary circuit the topload. While there are plenty of sites on the subject, michaels newest instructable breaks building a solid state tesla coil. A solidstate lowvoltage tesla coil demonstrator donald g. Hi everyone, i am have been looking here for a long time, but today is my first day registered. Tesla coil design, construction and operation guide. Designing and building the vermonster mini dualresonant solid. Tesla coil project in this project, youll learn about resonant circuits and how to build oscillators that zero in on a desired region of the resonance. The design and construction a solid state tesla coil a tesla coil powered by transistors instead of a spark gap is not a trivial task. A lot of other coilers have replicated this circuit with great success and therefore it is easy to find information how it works and how to troubleshoot it.
Make a simple solid state tesla coil sstc using our power pulse modulators. This circuit is a relatively simple circuit as far as tesla coils go, and is a good place to start for a coiler that is new to solid state drive. Instead it uses a 555 timer to more efficiently drive a single mosfet. A solidstate lowvoltage tesla coil demonstrator webtuyau. Our solid state tesla coil can produce sparks as long as 8 inches with a peak output of about 100,000 volts. The difference between a conventional sstc and the drsstc is the use of dual resonance. Named after the inventor nikola tesla, tesla coils are electrical devices designed to produce high frequency, high voltage alternating currents. Micro tesla coil makes a perfect stocking stuffer hackaday. Lossy capacitors 1 dielectric loss kansas state university. About 100 years ago nikola tesla invented his tesla coil.
This circuit performs very well for a low power and simple sstc. If you are here to learn how to build a sstc, you have come to the right place. Johnson manhattan, kansas some years ago i developed an interest in tesla coils. It has similarities to both the traditional tesla coil and to the modern. In many ways, cheap modern fets do make a perfect tesla coil driver.
You will also learn about how to safely handle highvoltage dc circuits and ultrahigh voltage radio frequency circuits. Some guy at albany spin jam b why play with solid state tesla coils. Pdf wireless power transmission using solid state tesla. Please note that building a solid state tesla coil is not easy.
The fundamental difference is that they use the zerostate response of the system instead of the zeroinput response. You can get some big sparks that way, but is it really a tesla coil. In that updated version of the tesla experiment, an 18volt, 2ampere transformer t1, a bridge rectifier circuit consisting of d1d4, and filter capacitors c1and c3 supply operating power for the coil circuitry. Btc3 250 kv tesla coil lightning generator first published by information unlimited transcribed to the electronic media by thallion of swedish infomania a tesla coil is one of the most fascinating electrical display devices to see in operation. To really be a tesla coil you need a high voltage source, a spark gap. Its possible to lay all the parts out on the floor as i use to do and run the tesla coil without any chassis, but using a chassis has many advantages. For someone who dabbles in solid state tesla coils, it was high time i built a. The authors prototype of the solidstate tesla coil was put together as several subassemblies perfboard which contains the majority of the electronic components, driver, sparkgap, pancakecoil li, the primary coil, towercoil l2, the secondary coll, tuningenergystorage assembly c3, and a highvoltagerectifier assembly. A two stage transformer which creates high voltage at high. Infact, nikolateslaalsoconceived amoreadvancedtypeof coil, the magnifying transmitter, which is made of three coils instead of two and which operates in a slightly morecomplicatedmanor. Dual resonant solid state tesla coil drsstc the circuit is similar to the double tuned spark excited circuit, except in place of the spark gap semiconductor switches and an external mediumvoltage power supply are used. Secondly, there is the solid state tesla coil design.
A lowvoltage demonstration tesla coil using a solidstate photovoltaic relay to replace the conventional. Solid state tesla coil downloadable plans information. They can also be made to play music through its spark, which is a cool effect. The solid state tesla coil is one of the types of tesla coils available. Solid state tesla coils and their uses sean soleyman electrical engineering and computer sciences university of california at berkeley technical report no. Unlike the other circuit, this one does not use two huge power transistors and high wattage resistors. Hey i made tesla coil refring with above circuit diagram when. It has several advantages over the more common spark gap tesla coil.
High voltage for more information on this project and similar others. A solid state tesla coil is one of the kinds of tesla coils available. Most solid state tesla coils are really more like a radio transmitter. Abstract the solid state tesla coil is a recently discovered high voltage power supply.
A tesla coil is a highvoltage aircore resonant transformer. For purposes of discussion we will consider three broad types, that. Simple circuit theory is used to analyse the nature of the load presented by a tesla coil. It assumes that the reader has basic knowledge of circuit theory and is primarily aimed at those with some experience in the field of power electronics. Power conversion coursework using a solid state tesla coil. Solid state tesla coils and their uses uc berkeley eecs. It is suggested to not operate this solid state tesla coil in denslypopulated environments, such as cities, for purposes of radio interference or if this device is to be operated in such an environment, it is suggested that a faraday cage be built to block electromagnetic emissions plans on building a faraday cage are included with all versions of the solid state tesla coils. One thing that makes our tesla coil unusual is that the coupling to the secondary coil is by a direct electrical connection rather than by magnetic fields.
This is a simple mechanical assembly, but necessary to stay in compliance with fcc regulations which allow any entity business or individual to assemble up to 3 radio transmitters without requiring a license. The most common method for switching power into the resonator is a halfbridge or fullbridge of transistors typically mosfets or igbts for their high power capabilities. I was teaching a senior elective course at kansas state university where we talked about power mosfets and topics related to high voltages and currents. The solid state tesla coil is a device which is capable of producing extremely high voltage, high frequency and low amperage alternating current electricity. Nikola tesla s coil is alive and well today, living in school labs and hobbyists workshops as a tool for learning and experimentation.
It has several advantages over the more common sparkgap tesla coil. They use the power from the outlet rectify it then pulse it through some 200 volt fets into the primary coil. Tesla coils have been around for almost 100 years and, with the exception of vacuumtube driven coils, not much has changed from the way nikola tesla invented them. The tesla coil is a device invented by the brilliant scientist nikola tesla born 1856, died1943. They are less noisy than conventional tesla coils, yet they can still achieve a respectable output.
Essentially, the tesla coil is two open electric circuits connected to a spark gap. Class e solid state tesla coil bens science wonderland. They are less louder than conventional tesla coils, yet they can still achieve a respectable output. Its a miniature solid state tesla coil thats based on the. The schematic we are using was made by steve ward, and belongs to him. Bruns 5195 hearthstone lane, colorado springs, colorado 80919 received 18 october 1991. All the individual components that make up a tesla coil the nst, mmc, spark gaps, etc should be mounted in some sort of chassis, frame, or enclosure. They dont require hefty transformers or thick insulation on all conductors, unlike spark gap tesla coils. Schematic for the instructablles 8 step solid state tesla coil. Solid state tesla coil schematics and construction notes.
Finally, the two fets are driven by the driver chip through an isolating gatedrive transformer, t1. Dual resonant solid state tesla coil 1 for someone who dabbles in solid state tesla coils, it was high time i built a drsstc. Solid state tesla coils, in their earlier stage see my old projects were basically just a power amplifier driving a secondary coil at resonance. About applied tesla technology, inc atti tesla coil. The tesla high frequency coil, its construction and uses. Introduction this is my first solid state tesla coil, so i went with a sturdy and proven schematic made by steve ward. Helpful hints for building solid state tesla coils. As opposed to a basic solidstate tesla coil sstc which. Design of solid state tesla coil using 555 timer and.
We will only discuss the conventional tesla coil, consisting of a spark gap and two tank circuits and called spark gap tesla coil sgtc. Building a tesla coil is something everybody should do once. Our spheres ship with a 14 20 threaded nut, and that will falicitate mounting to the l2 via an end cap that can fit the l2. The first being the classic spark gap tesla coil that used a spark gap as part of the primary rlc circuit to create the high voltage build up in the secondary. Tesla coils have been around for almost 100 years and, with th exception of vacuumtube driven coils, not much has changed from the way nikola tesla invented them. Design of solid state tesla coil using 555 timer and irfp460n. The second is the tank capacitor, which is a highvoltage capacitor that is usually homemade, but can be purchased for a high price from commercial suppliers. In fact both the design and construction present significantly different and far more complex challenges than those encountered in conventional tesla coil work. Solid state tesla coils sstc learn, build and help. As per tesla, the sphere is better for wireless transmission of power.
The purpose of the top load is to act as an antennacapacitor. My tesla coil top page and links to the tesla coil web ring preliminary cautions, notes, warnings, etc. They are also expensive as they are large and heavy. Tesla invented his coil with the intention of transmitting electricity through the air.
Pdf design of solid state tesla coil using 555 timer and irfp. Tesla coils are always a blast to see and are relativity simple to build. Build a solid state version of tesla s famous coil. The first is the primary transformer, which is a highvoltage ironcore transformer. The acoustics of tesla coils worcester polytechnic. An outside source hooked up to a transformer powers the whole system. Similar to the two transistor solid state tesla coil already on this site, this solid state tesla coil design uses a normal flyback transformer to generate its high voltage output. Now here links to actual circuits by a few others who have achieved solid state tesla coils with the low impediance primary feed method. Exploding power transistors can spew glowing metal chunks resulting in secondary fires. Solidstate tesla coil the schematic diagram for the solidstate tesla coil is shown in fig.
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