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Messages - milkman2046

Pages: [1]
1
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: My DRSSTC
« on: August 27, 2020, 06:30:45 PM »
I'm gonna ignore the watermark - the discussion takes away from the real subject of the DRSSTC!

The coil itself looks pretty good - is the first one you've built?

My only comments would be that a larger toroid might help performance, and more bus voltage (a doubler? I assume you're on 230/240V mains supply?) would really be needed to let the coil run at it's full potential. Complaining neighbors are unfortunately more difficult to solve than the electrical design though :(
hi!Built this is my first major DRSSTC, thank you for your advice I'll think about it, the design of the coil is actually can use 380 v three-phase electric power supply, it is no problem, but it takes a lot of space and a strong enough power, unfortunately I don't have, ha ha, really solve how to make the neighbours complaining is not because the sound of the arc is more difficult than electrical design!

2
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: My DRSSTC
« on: August 27, 2020, 12:08:12 PM »
Looks cool!
You do know that you can disable the watermark in camera settings?
Hey, why disable watermarking?I thought it looked good so I added it.
It looks like you're sponsored. Unless the watermark is your name or something, it looks very unprofessional.
I didn't accept any sponsorship. Maybe you misunderstood me. I just felt that this watermark was pretty beautiful, so I didn't remove it.

3
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: My DRSSTC
« on: August 26, 2020, 08:11:43 AM »
Impressive build!  I'm especially impressed with making your own differential probe.  Is it based on the P5205 schematics that can be found online?  There are many people here who could benefit from a low-cost differential probe.  (I spent the money for a used P5205, and plan to make an optically-isolated probe next winter.)  Do you have schematics and layout to share for your probe?
Hi, I just used the most basic difference circuit to complete it, in EEVBLOG P5205 drawing you can find on BBS, specific link I didn't save, optical isolation difference probe I also very interested in but the field of laser transmission signal is needed to get signal to minimize the delay, but need capital is beyond my ability range, so I don't have the ability to do hope to help you.

4
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: My DRSSTC
« on: August 26, 2020, 07:59:28 AM »
Looks cool!
You do know that you can disable the watermark in camera settings?
Hey, why disable watermarking?I thought it looked good so I added it.

5
Dual Resonant Solid State Tesla coils (DRSSTC) / My DRSSTC
« on: August 25, 2020, 07:46:47 AM »
Hello everyone, I made my DRSSTC during the school holiday, and moved down the building with my father a few days ago. The effect was not bad. The 150V power supply and the sound of electric arc were so loud that they disturbed the neighbors nearby.
Here are some parameters of my coil:
Subprime: 1.2 M
TOP:1000x250mm
Resonant frequency is 50KHZ
24V switching power supply is used for driving, and CPLD is used as logic gate array for driving plate
This is my drive board:

This is my coil. I feel fine.

Then there's my own differential probe I used to test the photos when the coil passed zero. It works very well!

And then a couple of test videos at BILBIL
https://www.bilibili.com/video/BV1gK411M7Sh/
Welcome to watch my work, it is not very good, because there is not enough space and power, maybe I will take it to school when I have time, making coils is my hobby, and I also like electronics very much, well, let's share so much, if you have any questions, please leave a message below, I will reply as soon as I see it.

6
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: Strange oscillations
« on: January 10, 2020, 11:19:28 PM »
Hello
I think this situation is caused by the voltage lagging behind the current caused by the inverter bridge entering the capacitive load area, so this oscillation is generated. The solution is to adjust the phase shift compensation of the DRSSTC driving board to make the voltage enter the inductive area ahead of the current or just cross the zero off section. :)

7
Dual Resonant Solid State Tesla coils (DRSSTC) / Re: Skm100 coil
« on: January 06, 2020, 08:02:05 AM »
This coil looks great! It looks exquisite!

What is the frequency of this coil?

8
Thank you very much.

Do you generate the timing for the phase-shifting fully digital?
How do you handle the frequency variation during spark growth?

My design ist base on the MAX1000 (Intel MAX10) FPGA evaluation board.
At present, I haven't designed a digital phase-shifting drive. The current drive is still an analog one. In the future, I will design a digital one. The frequency does change during the arc growth process, but as long as the coil is adjusted to make the arc longest. ;)

9
Are you using a FPGA or a somithing like a Cypress PSoC?
I use CPLD model epm240t100C5N :)

10
Hi and thank you for sharing some pictures of your setup.
Can you provide some more infos?
What part is the heart of your driver?
Do you alternating the hard switching from one half-bridge to the other?
What is the resonant frequency of this small coil?

Currently I am also in process of building a phase-shifted QCW coil.
I have attached a picture of my setup.


Hello my English level is not very good, I rely on translation software to see these words. :) I would like to share more things! First drive me with a 24V switching power supply! I didn't use the alternating phase shift. My secondary resonance frequency is 370 kHz.Your circuit looks more beautiful!

11
Hello everyone!
I built my first buck powered qcwdrsstc in 2017.But buck circuits cause extra circuits and costs, which I don't like.Here are some pictures of that coil.

This is the video of that coil.   https://www.bilibili.com/video/av9730258/
I want to reduce his size until I touch phase-shifting work, and then I start a new engineering design in 2019.
After three consecutive nights of work, I finished my PCB production and sent it back to engineering production.

This is the circuit I built. The parts are scattered on the ground.

This is my secondary coil. It's really small compared with my hand.

This is the whole.

This is the test phase-shift waveform.

I input 220V through my voltage regulator, and the power is 660w. I am very satisfied with the spark generated by this small secondary!

12
Hello, I'm from Jilin, China. I'm a high voltage fan. I like Tesla coil very much.

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