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Author Topic: Shorting Coil - Transformer  (Read 9462 times)

Offline Zeus

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Shorting Coil - Transformer
« on: April 14, 2013, 09:34:00 PM »
Hi everyone,

I was playing with this concept and I found interesting data to share. I'm finishing the second stage with the switch on the load and capacitors. For sure COP is more than 1 and I'm going to finish all the tests. I don't have a lot of time to draw diagrams, but I promise I'll try to be more accurate.

Zeus

 

Offline aaron5120

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Re: Shorting Coil - Transformer
« Reply #1 on: April 15, 2013, 04:45:12 AM »
Hi Zeus, your circuit seems to be interesting due to its simplicity. I would like to replicate it. Do you have an oscilloscope for capturing of the input output waveforms?
How long does it take to charge the big caps to 400V?
The concept is similar to Ismael Aviso's coil shorting circuitry.
I think you may use Doug Konzen's switching circuit to discharge the caps to the load( can be a battery bank) once they are filled.

aaron5120


Offline Zeus

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Re: Shorting Coil - Transformer
« Reply #2 on: April 15, 2013, 10:59:56 PM »
Hi,

Yes it's very simple. I'm working in 2 projects. One is a magnet motor and the second one is a solid state version of a magnetic motor. Shorting a Coil it's a concept and you can apply it for everything you want.

So I was running the first stage testing the electronics to drive the motor. I'm just using the ideas that I found, like Ismael , Doug and Romero (thank you guys for sharing).

I have an oscilloscope and I will upload the screen-shots soon as I can.

Preliminary data :

- Bank Capacitor 1 : 400V / 1000uf ( charged in ~ 2 seconds).
- Bank Capacitor 2 : 600V / 680uf ( charged in ~ 4 seconds).
- Input : 18VCA / 1AMP.

Now I'm working in the circuit that drives the capacitor arrangement. Timing is one of the keys. I know this all test is running on 60hz, but for test purposes it's enough.

For discharging the capacitors I'm working in a different circuit with a CD4017, switching to charge / disconnecting from source every delta pass by 0 of the wave sine.

So :

First Test

- Shorting Coils while T=9
- Discharging at T=10

Input at 60hz / Output 6Hz

Second Test

Input at 600hz / Output 60hz

A normal transformer works fine until 1.5KHz. I'm not working with the harmonics or something that will put more pressure on the design. Simple and with low EMF emissions.

If you want to do a simple test, take a transformer and short very quickly by hand the output before the diode bridge and you will see how the voltage rises at the output capacitor.

Thank you and have a nice day,

Zeus


Offline aaron5120

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Re: Shorting Coil - Transformer
« Reply #3 on: April 17, 2013, 03:45:22 AM »
Hi Zeus, TC427 is a tandem driver, do you connect both pin2 and 4 (In A, In B)to the output of the Gated Oscillator? Also do you use pin5 and pin7 to drive FET1 and FET 2? For clarity's sake, will you please specify the pin numbers of your connection for the TC427?
Thanks a lot.
Another question is in case your want to work with 600Hz, then you will input 12V sine wave 500mA 600Hz to the 10K resistor of the transistor's base,right? IC 7805 will keep on receiving normal 12V DC supply from the grid, right? Then, 18V AC supply to the FETs should be sincronized with the 12V 600Hz of the Zero crossing detector, right?
Sorry for so many questions.

aaron5120

Offline Zeus

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Re: Shorting Coil - Transformer
« Reply #4 on: April 20, 2013, 04:30:25 PM »
Hello,

- TC427 is a tandem driver, do you connect both pin2 and 4 (In A, In B)to the output of the Gated Oscillator? Also do you use pin5 and pin7 to drive FET1 and FET 2?

@ Check the data-sheet : http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010657
There is only way to connect this driver. Also you can replace for another one and will work like a charm.

-  Another question is in case your want to work with 600Hz, then you will input 12V sine wave 500mA 600Hz to the 10K resistor of the transistor's base,right?

@ No. The configuration will change.

- IC 7805 will keep on receiving normal 12V DC supply from the grid, right?

@ No. The configuration will change.

- Then, 18V AC supply to the FETs should be synchronized with the 12V 600Hz of the Zero crossing detector, right?

@ No. The configuration will change.

The oscillator at 600khz will be based on a IR2153. Now I'm working on the circuit to drive the capacitors. Almost done and I have 2 setups to play.

Just a little a thing. Try to play with a basic circuit and fully understand how it works. All the things I posted works and were tested for another people before. The only change that I did, it's applying all that to a simple transformer before moving to another setup.

Have a nice day,

Zeus




Offline aaron5120

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Re: Shorting Coil - Transformer
« Reply #5 on: April 20, 2013, 04:59:53 PM »
Thank you Zeus, for the explanations.
Good luck with your further testings, and looking forward to hearing your good news.
I get to order the stuffs for the replication.

aaron5120


 

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