Circuit Description. Because the coil makes very high voltages, the electricity can leave the Tesla coil and go through the air to get back to the ground. A Tesla coil is a resonate transformer containing a primary and secondary LC circuit. While spark gap Tesla coils hold the crown as the simplest and most robust Tesla coil variant, they have their issues. The Tesla coil is an excellent teaching tool, as many interesting things may be learned with the aid of this device. Unlike transformers, which have a primary and a secondary winding around an iron core, Tesla coils use induction from a smaller primary coil to boost voltage in the secondary coil, using air to insulate the secondary coil. In this section, we’ll explain how the oneTesla 10” coil can reach voltages over a quarter million volts using coupled resonant circuits. The two LC circuits are loosely coupled together. Although primarily used for entertainment purposes, with its long electrical arcs and noise, it also provides a path to understanding basic RF resonant circuits; just part of the many considerations involved when designing RF circuits. Spark gap coils require dangerously high input voltages (over 4kV), noisy spark gaps, and tend to draw a lot of power. The Solid-State Tesla Coil is comprised of a 555 oscillator/timer, a pair of IRF9130 P-channel HexFETs, a gaggle of diodes, three transformers, a couple of hand-wound coils, and several support components, as illustrated by this schematic diagram. Developed in 1891 by Nikola Tesla, the Tesla coil was created to perform experiments in creating high-voltage electrical discharges. Using an innovative high-speed current limiting scheme, our driver achieves precise primary current envelope control while maintaining zero current switching and low switching losses. You may have seen them in real life, in a museum or art display. We wrote this document for those who wonder how a Tesla coil works. Solid state coils (SSTC's), on the other hand, run off low voltages (usually under 240V), produce more energetic sparks, and can be run almost silently. We’ll build up from the fundamentals, to give you a thorough explanation of what’s going on. The schematic for the solid-state Tesla coil is shown in Fig. The secondary of the Tesla coil, when directly driven by a solid-state driver, appears like a series RLC circuit. A Tesla coil is an amazing device that can create very high voltages. More specifically, a Tesla coil is an air-core, dual-resonant transformer. 2. One end of the Tesla coil is connected to the ground. Tesla invented the Tesla coil during efforts to develop a "wireless" lighting system, with gas discharge light bulbs that would glow in an oscillating electric field from a … Tesla Coil Driver. The Tesla coil is well-known for producing extremely high voltages. Nikola Tesla, who lived from 1856 to 1943, developed the Tesla coil in 1891 as part of his work with alternating currents. It consists of a power supply, a capacitor and coil transformer set so that voltage peaks alternate between the two, and electrodes set so that sparks jump between them through the air. A Tesla coil makes current electricity; the charges are flowing. Its purpose is to create bolts of artificial lightning. The Tesla coil provides a high voltage demonstration of a resonant transformer. Or perhaps you saw one on TV, or in the movies. Eventually the voltage across the capacitor will increase sufficiently to short a … A Tesla coil works on a slightly different principle, creating the very high voltages needed to produce long arcs in open air mostly through the inductive difference between its primary and secondary coils. Power is supplied to the primary circuit through a transformer, which charges a capacitor. 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