Tesla coil with voltage doubler?

In summary, the conversation discusses the issue of powering a small tesla coil with a voltage doubler and how it performs worse compared to using a flyback. The problem is attributed to the discharge of the doubler's capacitors across the spark gap and the interference with the resonance due to the parallel connection with the tank capacitor. The question then arises on how to improve the performance of the tesla coil with a voltage doubler, specifically by using a current limiter. However, it is cautioned that increasing the output voltage of the Tesla coil may pose a safety risk due to inadequate insulation.
  • #1
Artlav
162
1
I want to power a small-ish tesla coil from a 8KV 500W transformer with a voltage doubler to raise that to 16KV.

Problem is - it works considerably worse (shorter sparks, LOUD gap) than with a 30KV 100W flyback, spark gap being the same, set at about 12KV.

One issue appears to be that once the spark gap closes the capacitors in the doubler discharge across it as well.
Another issue might be that the doubler's capacitors are essentially in parallel with the tank capacitor, thus interfering with the resonance.

So, wide question is - how to make a tesla coil work well with a voltage doubler?
More specific, is there a way to make a current limiter to prevent the doubler from discharging all at once across the spark gap? Resistors are out of the question, obviously.
 
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  • #2
There's more than just voltage. Output impedance is another important parameter. The output of the doubler is too small for the Tesla coil.

Not only that, but if you double or more than double the output voltage of the Tesla coil, the insulation may not be adequate. It is dangerous. Don't try it.
 

1. What is a Tesla coil with voltage doubler?

A Tesla coil is an electrical resonant transformer circuit that produces high-voltage, low-current, high-frequency alternating-current electricity. A voltage doubler is an electronic circuit that doubles the voltage of an input source. A Tesla coil with voltage doubler combines these two components to produce even higher voltage outputs.

2. How does a Tesla coil with voltage doubler work?

The Tesla coil with voltage doubler works by using the principles of resonance and step-up transformers. The voltage doubler circuit is connected to the primary coil of the Tesla coil, which is then excited by an external power supply. This creates a high-frequency alternating current that is passed through the secondary coil, resulting in a much higher voltage output.

3. What are the applications of a Tesla coil with voltage doubler?

A Tesla coil with voltage doubler has many practical applications, including in high-voltage power supplies, medical equipment, and scientific experiments. It is also commonly used in entertainment, such as in Tesla coil musical performances or as a special effect in movies and TV shows.

4. Is a Tesla coil with voltage doubler dangerous?

Yes, a Tesla coil with voltage doubler can be dangerous if not used properly. It produces very high voltages, which can cause electric shock and damage electrical equipment. It is important to follow safety precautions and use appropriate protective gear when working with a Tesla coil with voltage doubler.

5. Can I build a Tesla coil with voltage doubler myself?

Yes, it is possible to build a Tesla coil with voltage doubler yourself, but it requires a good understanding of electronics and high-voltage safety. It is recommended to seek guidance from experienced professionals or references before attempting to build one. It is also important to note that building and operating a Tesla coil with voltage doubler may require proper permits and approvals in some areas.

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