Mosfet driven slayer exciter no driver ic or gdt required. Buy mosfet igbt drivers products online future electronics. The more turns there are at secondary coil compared to primary,the higher the voltage generally. A series of simulations and practical tests are run to study about the nature of the output that is being received. General electronics chat problems with the slayer exciter project. Most of the mosfet slayer exciter ive seen uses mosfet driver to turn on the gate of the mosfet, but since i dont have access to mosfet driver, i. The old design had a large 5% deadtime at switching instants to allow one mosfet to turn off before the other is. D2 1n4148, or 1n400x x is a number u1 mic4452 mic4452yn. Design of highside mosfet driver using discrete components. Mosfet slayer exciter no driver ic or gdt required, no. The drivers for the most and the igbt need to deliver the required drive current and have the required driving voltage.
I have collected a few reverb tanks, all from solid state amps, but havent had the time to mess with them yet. Can i use an nchannel mosfet as a replacement for an npn. The mosfet driver rapidly transitions the transistor from the off state. I blame the neighbour he said how about building a tesla coil l have to admit i had thought about it in the past but the gauntlet was thrown. Igbtmosfet driver vishay semiconductor opto digikey. Reconfiguration of the mosfet gate drivers to reduce the deadtime at switching transitions. A slayer exciter is an electronic version of a tesla coil in which the spark gap sg is replaced with a semiconductor, a material that has a conductivity between that of a conductor and an insulator such as a transistor, mosfet, or igbt. Slayer exciter circuit duplicate ask question asked 3 years. Dual high efficiency synchronous mosfet driver check for samples.
Hey everyone, was bored today so i tried building a slayer exciter from parts i had sitting around. This weekend i wound by hand, of course my first proper tesla coil secondary. As mentioned, the secondary circuit is a coil of wire, one end of which is grounded, and the other end is connected to some kind of topload metallic volume at the top of the tube. The biggest one that drove the rest of the design was switching out the normal bjt npn transistor for a mosfet. The mosfet driver input is a highimpedance, ttlcmoscompatible input. The ncp5369 integrated solution greatly reduces package parasitics and board space. I show you several examples, how think about such a circuit. Mosfet driven slayer exciter no driver ic or gdt required, no. The slayer exciter circuit causes a lot of heating in the transistor due to slow turnon and turnoff times. This circuit runs on a mosfet, and puts out a lot more power. Ive built a slayer exciter using a tip31c running off a 12v power supply. Functional description the a4957 is a fullbridge mosfet driver pre driver requiring an unregulated supply of 7 to 50 v and a logic supply from 3 to 4. Tps51601a 1features description high voltage synchronous buck driver the tps51601a is a synchronous buck mosfet driver with integrated boost switch. I used 2 irfp250 mosfets in parallel to improve the current handling capability and thermal characteristics compared to the comparatively wimpy mjt3055.
The mic4452 meets this goal, it i rated for 12 amperes of peak current. Most of the mosfet slayer exciter ive seen uses mosfet driver to turn on the gate of the mosfet, but since i dont have ac. This high integrated boost switch for bootstrap action performance driver is capable of driving highsideand. The current in case of such devices is a cpacitive current to charge or. Be it an ordinary high school project or a mind blowing arcing project, a tesla coil is always fun to build and will definitely make your project look cool and attractive. Pdp power devices introduction this application note discusses how to select optimal power devices and control circuitry for alternating plasma display panel applications, concentrating on power circuits used to sustain plasma discharge on the panel. My first tesla coil slayer version silicon junction. Choose from highside or lowside mosfet driver, fullbridge or halfbridge mosfet driver and other mosfetigbt drivers available at future electronics. Basic control and protection features support fast and easy design of highly reliable systems. Slayer not very exciting having fiddled with different transistorsdiode combinations without much improvement, ive come to the conclusion that i need to make a new, better driver circuit, so to kick off i am thinking of.
The driver for the lowside mosfet use the vcc pin for supply and pgnd pin for return. An output pin of a microcontroller is usually adequate to drive a smallsignal logic level mosfet. The other thing is that the secondary is only attached. Building the poormans mini tesla coil slayer exciter. Nov 14, 2017 i show you several examples, how think about such a circuit. However driving larger mosfets is a different story. It can light up cfls around a foot away and creates a halfcentimetre arc without a top load. I didnt spend enough time on tweaking it, but it is nowhere close to the simplicity and bang spark for the buck as the slayer excitor. The driving circuit of fet can be realized with only two transistors, pnp and npn.
The mic4451 is an inverting driver, while the mic4452 is a noninverting driver. I presume you are generating very high voltages from the slayer exciter. Note the following steps that you can take to dramatically improve your drivers lifespan. See more ideas about tesla coil circuit, tesla coil and diy electronics. Exploring wireless power transmission using a low voltage. Firstly, the base of the secondary became very hot due to the high rms current flowing through the fine wire. C m is the capacitance between drain and source of the mosfet. I found it quite tough to tune the frequency to the exact resonance of the coil, something that the slayer does automatically. The driver runs directly from the 240v 50hz ac mains which is then half wave rectified. In this video i finally post the schematic for my single transistor powered tesla coil.
A tesla coil is a simple coil that creates a high voltage electric field in the air when a small input power 9v is provided, this electric filed is strong enough to glow. In this case, you may use a rlc feedback network that charges up at the frequency and current that is needed to drive the mosfet. Feb 25, 2017 this circuit attempts to address a couple of the issues with the slayer exciter. Please help me in choosing a driver circuit high voltage forum.
You can replace it with similar nch, 500v, rdson 40w power. Design of solid state tesla coil using 555 timer and. The driver and mosfets have been optimized for high. Most of the mosfet slayer exciter uses mosfet driver to turn on and off the gate of the mosfet, but since i dont have an access to it, i decided to use bjttip41 to turn on the gate. Tesla coil 2 building electrobooms sstc driver tesla coil 2 building electrobooms sstc driver. Most likely due to a impedancematching issue with the gate acting like a capacitive load to fix this, i simply used one of the very many ds0026 mosfet driver. Ixys offers their ix4426, ix4427, and ix4428 dual lowside ultrafast mosfet drivers ixys features their ix4426, ix4427, and ix4428 dual highspeed, lowside gate drivers. In this improved circuit, weve replaced the led with a much faster schottky diode, d1. My mosfet driverless mosfet slayer exciter with adjustable. You can probably do it if you have a buffermosfet driver between the led and gate. I came up with the circuit my own and thats probably why it doesnt work.
Advanced gate drive options for siliconcarbide sic mosfets using eicedriver summary 1 summary for each gate driver ic, the availability of properties and supporting functions for driving sic mosfet is listed in table 1. Finally i was able to get my mosfet slayer exciter working after days of failure. Jun 01, 2019 hello yall, this is a followup to the bjt slayer exciter circuit. The driver for the highside mosfet use boot pin for supply and phase pin for return. The input has 300 mv of hysteresis between the high and low thresholds that prevents output glitching even when the rise and fall time of the input signal is very slow. Separate output variant for mosfet functional description data sheet 12 rev. If you have no experience in electronics, dont fret. The most important parameters shown with shaded rows at the beginning of the table. Mosfet driverless mosfet slayer exciter adjustable power. The mosfet driver rapidly transitions the transistor from the off state, to the saturated state, without spending any time in the middle.
In my previous post i discussed my build of the slayer exciter tesla coil. Its a very simple circuit and ive double checked the connections on everything, but no dice. The slayer exciter circuit also causes a lot of heating in the driver transistor because the transistor expends most of its time in active mode, not in saturated mode. Optically isolated igbtmosfet driver vishay semiconductors vo3120 and vo3150a drivers for hightemperature and highvoltage applications vishays vo3120 and vo3150a igbtmosfet drivers, which have a maximum operating temperature of 110c, are an ideal choice for motor drives, power supplies, and other highvoltage applications. Dual highefficiency synchronous mosfet driver datasheet. You can probably increase the sparks easiest by just increasing the voltage of the whole circuitry. It is possible to get serious rf burns, and it may be where you touch something else while in range of a high power slayer excitertesla coil. Design of solid state tesla coil using 555 timer and irfp460n. This is the simplest method i could find being a single transistor oscillator which is basically a tank oscillator but with the tuned or resonant circuit attached to the base of the transistor. Tesla coil slayer exciter circuit diagram with components sport car news. A little primer on tesla coils and then we build a mini slayer exciter coil from a kit and have some fun. A series of simulations and practical tests are run to study about the.
The cool thing is this has been done, and only requires the addition of a mosfet gate driver ic. Unlike a conventional dampedwave tesla coil, the solid state tesla coil is capable of producing considerable amounts of sustained rf power. My mic4452 mosfet driver ic is quickly heating up and shutting everything off. The greatness of the slayer exciter is that it makes the circuit oscillate exactly at that frequency. Slayer exciter circuit with a tesla coil electroboom. Gate driver a mosfet driver ic translates ttl or cmos logical signals, to a higher voltage and higher current, with the goal of rapidly and completely switching the gate of a mosfet. A 12ax7 with a mosfet or tube follower would work though. It is the exact same concept, just that instead i used a high power mosfet transistor and a gate driver ic to drive the mosfet. Mic4451 and mic4452 cmos mosfet drivers are tough, efficient, and easy to use. Electrical engineering stack exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. Veja mais ideias sobre circuito eletronico, esquemas eletronicos e projetos eletricos. Something similar to a a stable multivibrator but with an assymtrical oscillating mosfet on the other end to sustain oscillations. It has since been modified and improved, resulting in a community of people.
It can be difficult to get enough or the right current gain for the slayer exciter. This page contain electronic circuits about mosfet circuits at category mosfet circuit page 6. This is efficient flyback driver circuit, using ic555 and mosfet irf510. Design of solid state tesla coil using 555 timer and irfp460n mosfet soumyadeep sarkar department of electrical and electronic engineering eee, kurukshetra university, kurukshetra abstract. The irfp460 mosfet really does need a special driver ic. A dc supply is given to a solid state miniature tesla coil with a slayer exciter. Its possible to address these issues by changing the slayer from a bjt transistor to a mosfet and introducing a mosfet driver. Problems with the slayer exciter project all about circuits forums. Think a triac for lower powers and mosfet for big uns. Silicon carbide sic mosfets using eicedriver advanced. Plasma display panels pdp are emerging as the leading candidate for large area wall. Both versions are capable of 12a peak output and can drive the largest mosfets with an improved safe operating margin. How to build a solid state tesla coil sstc 2 by loneoceans labs.
I love that 60s surf guitar sound, but until i have the time, i will have to rely on overlouds th3. How to drive the gate of a mosfet for a slayer exciter. Schematic for solid state tesla coil t e s l a t r o n i x. I found out that i can do better with my slayer exciter circuit, with a mosfet and a mosfet driver. The solid state tesla coil is a device which is capable of producing extremely high voltage, high frequency and low amperage alternating current electricity. The four gate drives are capable of driving a wide range of. Ncp5369 integrated driver and mosfet the ncp5369 integrates a mosfet driver, high. Sir, i see r2 in the slayer exciter with mosfet and gate drivers is 2 ohms, is that right.
A4957 full bridge mosfet driver allegro microsystems. At the instant the mosfet is switched off, c d would be charged to the supply voltage v b. Can i use an nchannel mosfet as a replacement for an npn bjt. You can probably do it if you have a buffer mosfet driver between the led and gate. How to drive the gate of a mosfet for a slayer exciter circuit without.
Note the following steps that you can take to dramatically improve your driver s lifespan. The mosfet gate current is limited to a value signi. Diy electronics electronics projects electric fence energizer dc circuit electronic schematics magnetic motor electrical projects circuit projects high voltage. It is based on this instructable and the schematic credit to user max is at. A4957 full bridge mosfet driver 6 allegro microsystems 955 perimeter road manchester, nh 031033353 u. My mosfet driverless mosfet slayer exciter with adjustable power not working ritaismyconscience may 10, 2020, 06. Ive also tried a mosfet based circuit driven by a 555 timer and a mosfet driver. Tesla coil using simple slayer exciter by lodestone.
Note that this circuit is using an inverting driver, so the connections to the primary l1 will be reversed. If you use a 555 your mosfet will melt and your 555 will be badly injured. Simply put, a normal solid state tesla coil sstc is simply a power amplifier driving a primary coil at the resonant frequency of the secondary coil. The transistor in the slayer exciter dissipates a lot more heat than necessary due to the fact it spends a lot of time in the active mode as opposed to the saturated mode. But i tried to use a function generator instead to excite the circuit which is another option.
The ncp5351 is an excellent companion to multiphase controllers that do not have integrated gate drivers, such as on semiconductors cs5323, cs5305 or cs5307. Power mosfet driver the ncp5351 is a dual mosfet gate driver optimized to drive the gates of both high. So, the slayer exciter just doesnt seem good enough for what i want. It is also beneficial to use a larger transistor than the 22222 and also attach it to a big, big, big, heatsink. My first tesla coil mosfet version silicon junction. A bipolar transistor and a power mosfet have very different input characteristics. I suggest getting one rated for at least 8 amperes of peak current. Tesla coil using simple slayer exciter by lodestone thingiverse. Compared to the normal slayer exciter circuit, this circuit has some major changes. What is the best implemented igbt driver circuit for. The designed highside driver was tested to observe its performance with respect to different gate input frequencies, from 50hz up to 150khz using the mosfet irf730 as the switching device. For those who dont know, a tesla coil is essentially a cylindrical. D2 1n4148, or 1n400x x is a number u1 mic4452 mic4452yn is the throughhole version q1 2sk2542 this is an obsolete part.