Questions tagged [tesla-coil]

A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage, low-current, high frequency alternating-current electricity. Source: https://en.wikipedia.org/wiki/Tesla_coil

Filter by
Sorted by
Tagged with
0
votes
0answers
58 views

Slayer exciter 2N3055 to 2N3716, what can explain these behaviours?

I built a slayer exciter with a 2N3055 from which I can pull 1.5" arcs at ~30V (tried base resistors ranging from 20-30kohm). I was planning to run it at a higher input voltage than the 2N3055 can ...
0
votes
0answers
55 views

Generate identical positve going and negative going pulses/spikes at the same time

I am interested in building a circuit to generate a sharp positive pulse and an identical negative pulse at the same time with a peak of about 10 to 200 V. So when I say sharp I would like a rise time ...
0
votes
0answers
28 views

How do I avoid a high DC current flowing through mosfet in my SRSSTC tesla coil?

There are 6.48 amps flowing through the mosfet but only 12 mA through the capacitor, L2 would be my tesla coil primary. How can I reduce the amount of components in my circuit and improve its ...
0
votes
0answers
27 views

Initial conditions in multi-state Tesla Coil circuit

Half a year ago I posted this quesion about a Tesla Coil resonant circuit which got an amazing answer that helped me understand the resonant frenquency of such circuit. Now I've returned to that ...
0
votes
0answers
76 views

Tesla Coil not working

I made a simple miniature Tesla Coil following a youtube tutorial (https://youtu.be/AehL3BodduE) As you can see in the photos, I 3-D printed a PVC pipe like piece and wound two copper wires one over ...
0
votes
1answer
147 views

Slayer exciter(Mini Tesla Coil) Not Working[IRFZ44N]

I made a tesla coil as https://www.youtube.com/watch?v=Ca2e3evwVK0 's circuit. the MOSFET seems to be getting hot and current passes through the primary but I get no response from the secondary. ...
2
votes
3answers
672 views

Tesla coil and Tesla tower

What exactly is the difference between Tesla Coil and Tesla Tower? What does the tower do? How does it affect the propagation of electric energy? A Tesla coil can generate voltages of high potential. ...
1
vote
1answer
55 views

Filttering noise out from high frequency 1MHz oscilator (Teslacoil driver)

I have a 74HCT14N based ''RC'' square-wave oscillator. The produced signal then goes to PMIC gate-driver and finally to a mosfet which drives the primary coil at resonant frequency. (about 930-1000kHz)...
0
votes
0answers
74 views

My slayer exciter circuit doesn't work properly

today I tried to make my own Tesla coil circuit according to the schematic below, except that I have changed the number of turns on the secondary and primary so could get a higher output voltage (1 to ...
0
votes
1answer
101 views

Coil Damage Worries [duplicate]

I was trying to make a hv generator from an ignition coil. I bought one from the local mechanics, and put it in a circuit in series with a capacitor and a light dimmer connected to mains 240v. The ...
0
votes
1answer
69 views

Transformer testing

I connected an ignition coil to 240v in an attempt to make a Hv generator. The ignition coil was connected I series with a capacitor and light dimmer. When turned on the ignition coil did nothing at ...
0
votes
1answer
454 views

Design considerations for bifilar coils for Wireless Power Transfer

I found many different DIY videos and posts demonstrating the concept of wireless power transfer using inductive coupling, however, they have limited explanation on theoretical calculations and design ...
0
votes
2answers
173 views

Wireless Electricity Transmission model not working. Why?

I made wireless electricity transmission model using the principle of magnetic inductive coupling to transfer electricity between two separate coils. The model is very simple, known to everyone and ...
1
vote
4answers
2k views

How can I safely determine the output voltage and current of a transformer?

So I am building a Tesla coil with my partner for a senior design project. We safely ripped out a transformer from a microwave oven. However, after a good amount of research, we were unable to find ...
0
votes
1answer
410 views

Mini slayer exciter (tesla coil) not working

I recently built this tesla coil, and I've tried many different setups, but for some reason, I can't quite figure out why it won't work. simulate this circuit – Schematic created using ...
0
votes
0answers
93 views

Tesla Coil / Slayer Exciter won't work

I need some help with troubleshooting a slayer exciter circuit or coils. I was following this youtube tutorial and doublechecked all the connections. The power supply I use is 12V 1.5A. My secondary ...
6
votes
4answers
914 views

Is it possible to measure lightning discharges as Nikola Tesla? [closed]

Nikola Tesla stated in his patent, Art of Transmitting Electrical Energy Through Natural Medium, that he used sensitive instruments to measure lightning discharges: In the course of certain ...
0
votes
0answers
648 views

Tesla coil circuit troubleshooting

Ok so we are making a tesla coil. Here is the circuit diagram we are referring: Now it worked when we first made this. The light bulb lights bulb when we bring it near to secondary coil. Then we ...
0
votes
1answer
159 views

AUX input or microcontroller in a musical tesla coil?

Alright so I am making a musical tesla coil. I have seen some online tutorials and what I noticed is that some people are giving the audio input using a microcontroller and programming it to produce ...
0
votes
0answers
105 views

Circuit simulator for a musical tesla coil?

I want to make a musical tesla coil. But I want to do some experimenting with the values of the voltage, turns ratio and the audio input. So I need a circuit simulator so that I can fixate on what ...
1
vote
1answer
120 views

Which is the suitable toroid ring to wind the gate drive transformer of a SSTC?

I found this “ferrite” (i’m not sure if its ferrite) ring from a SMPS. A choke, to be specific. It’s made of black- grey, very hard, brittle material. Lower density than a solid iron ring. Is it OK to ...
0
votes
3answers
198 views

Where does the other end of the secondary in a solid state tesla coil connect?

Yes, i know it's a very elementary question, it's my first time build. All circuits shows that the not- sparking end of a sstc is connected to ground, but exactly where? do they mean the LITERALL ...
-1
votes
1answer
206 views

Does the lack of a primary DC blocking capacitor cause my tesla coil driver to explode?

Lately I've been tinkering with an SSTC half-bridge driver. I've ran a couple of tests using relatively low input voltages ~50V and the IGBTS seemed to do fine, there was no noticeable heating at all. ...
0
votes
1answer
1k views

Tesla coil troubleshooting help

I'm trying to make a Tesla coil with approximately 200 turns in the secondary coil using 28 gauge enameled copper wire. My primary coil has 3-6 turns with a thicker wire. I've made all the connections ...
0
votes
1answer
474 views

Tesla coil - my primary circuit doesn't work

I would like to make a Tesla coil, so I bought a 10 kV 120 W 30 mA neon sign transformer from Aliexpress. First potential problem, while playing with it, I noticed that when it stops ...
1
vote
0answers
79 views

Capacitors discharging into Coil

I have 2 capacitors charging in parallel and then switching them in series to discharge into a wound coil of known inductance. My capacitors are 4nF 2000V and the charging voltage is 1000V. So at the ...
1
vote
1answer
76 views

Inductive Charging 2 layer coil transfer to 1 layer receiver. Any issues?

I am looking to incorporate a inductive charging mechanism into a project I’m working on. On the receiving side I only have room for a single layer coil design. For my transfer side I have more ...
2
votes
2answers
105 views

Interrupter on induction heater

Im currently trying to control the power of my induction heater, i want to use an interrupter to control it. but if i now interrupt the driver at random points, the mosfets wont turn off at zero ...
0
votes
0answers
37 views

Low Voltage Marx Generator Switch

I have a low voltage Marx generator which is connected to a coil inductor, eventually forming an LC oscillator. I want to find a way to switch the circuit on, but because the voltage is low I cannot ...
1
vote
2answers
401 views

Slayer exciter with darlington pair

I've been playing around with the well-known slayer exciter, and trying to make a tesla coil. The standard 1 transistor setup works fine for me, but the arcs I'm getting are pathetic, and it can ...
0
votes
0answers
67 views

Measure if Tesla coli is safe

I am planning to buy a Tesla coil from Alieexpress. When it arrives I wonder what are measurements I could take to make sure iit is safe. For example: how/where can I measure if the primary coil and ...
-4
votes
1answer
382 views

Tesla Coil Troubleshooting Help! [closed]

A couple weeks ago I decided to build a tesla coil and after a decent amount of research and building time the coil could only light up a light bulb. I have tried many things to fix it but all to no ...
2
votes
1answer
83 views

Tesla coil, where do the sparks from the secondary coil ground to?

This might be an obvious question, but I was wondering how a Tesla coil emits sparks that's seem to complete a circuit in thin air, and how one end of the secondary completes a circuit with the other ...
3
votes
2answers
312 views

where is the closed path in tesla coil?

I saw a bunch of videos about Tesla coil which works on like an air cored transformer producing high voltage but could be figured it out how exactly it works I mean if we bring a tube light, lamp then ...
-2
votes
1answer
368 views

Questions about Tesla coil (SGTC), spark gap and resonance

If I use a step up transformer (flyback for example) for primary to boost the voltage to 10 kV which (flyback) has a resonant frequency around 30-50 kHz, and the primary coil has a res. freq. of 500 ...
-1
votes
1answer
251 views

Spark Gap for a Tesla Coil with 9-18v battery

I’m working on a university project where I’m building a modest tesla coil formed by a 20cm length secondary and a primary of five loops around the secondary. I need to make a spark gap in my circuit ...
0
votes
3answers
129 views

Is it feasible to make a musical tesla coil [closed]

Ive built a couple tesla coils so far, both a slayer and a spark gap (nothing overly complex). I'm still a student so I dont know a ton about electronics but I have a decent foundation. Has anyone ...
0
votes
1answer
480 views

Need a little help with a Chinese tesla coil

I bought a little tesla coil kit that can play music. I soldered it all up, and a friend of mine distracted me at the last second when I was hooking it up... I blew the original "BD243" transistor up ...
1
vote
1answer
625 views

Can the primary coil of a Tesla coil be inside the secondary coil?

I'm building a Tesla coil and the secondary coil (about 800 turns of 0.85 mm diameter enameled copper wire) is wrapped around a cardboard tube (about 8 cm diameter and about 1 m long). I was planning ...
1
vote
1answer
424 views

Voltage through resistor connected to tesla coil

I have been reading up about tesla coils and wondered what happens in a tesla coil circuit. If I have a tesla coil producing around 40KV in close proximity (around 10mm spark gap) to a metal pin ...
0
votes
1answer
983 views

Slayer exciter not working help

I recently made a slayer exciter by using the circuit diagram attached. But my exciter is not working and I have a question. Is primary coil supposed to be wound the opposite direction as second coil?...
-4
votes
1answer
631 views

Slayer Exciter - Upgrade

I've built slayer exciter without LED. I was wondering if there is a way how to lighten a bulb without touching the secondary coil first. Also I was interested in how could I "upgrade" this slayer ...
0
votes
1answer
128 views

How should you position two flat-wound spiral coils for the best coupling?

I created two flat wound-spiral coils (also known as bifilar coils). The transmitter coil I made with an outer diameter of 10 inches and an inductance of 3 mH. The receiver coil I used a much smaller ...
0
votes
2answers
219 views

Is there a specific name for this phenomenon?

In my Slayer Exciter circuit, the current from the battery flows into the primary coil (with four turns) and therefore, a current is induced in the opposite direction in my secondary coil. This ...
1
vote
3answers
402 views

A problem regarding my Slayer Exciter circuit?

I have made a Slayer Exciter circuit for my school project. I'm going to be assessed on it. Now, it works just fine. But if I have to light a tubelight or something, I have to touch the terminal to ...
-2
votes
1answer
4k views

How to use zvs driver to power tesla coil's primary

So, i am thinking about making my own crude tesla coil which would work upto 30volts. I got a zvs driver for that purpose. The zvs driver has 3 output lines( 1 positive and other 2 ground). Most of ...
-1
votes
1answer
254 views

Tesla coil secondary wire problem [closed]

I'm making a small Tesla coil and I need to add some wire on the secondary coil because the one I used is too short. I have 2 wires with the same length. Can i add them to the first? If i do this the ...
1
vote
1answer
468 views

slayer exciter(tesla coil) circuit modification to allow better audio input

So I have the circuit working with a kit but the only thing is the audio aux has this offset voltage or some high voltage output I suspect. So when I plug my phone to the tesla coil through the audio ...
0
votes
0answers
97 views

Suitable Capacitor

I am wondering what voltage rating I need for the capacitor in the attached circuit. Its basically the front end of a Tesla coil. The voltage source is a neon sign transformer 3kV open circuit at up ...
3
votes
3answers
1k views

How can we measure the voltage at the coil of a Slayer Exciter?

How can we measure the voltage at the coil of a Slayer Exciter? We have built a simple 9V Slayer Exciter for a school project. We are examining the conservation of energy at the transformer. The ...