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Forums
4hv.org :: Forums :: High Voltage
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Can i use it?

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LUGIA
Tue Sept 23 2008, 07:34AM Print
LUGIA Registered Member #1706 Joined: Sat Sept 20 2008, 05:41PM
Location: Suratthani, Thailand
Posts: 12
 		I want to know can it work?
Thank You

1222155265 1706 FT0 2309200856

1222155265 1706 FT0 Scheme2
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Linas
Tue Sept 23 2008, 09:20AM
Linas Registered Member #1143 Joined: Sun Nov 25 2007, 04:55PM
Location: Vilnius, Lithuania
Posts: 721
 		put to primary 220V ac, and have HV, simple cheesey
also,its very danger, because 2KW and 1A in output, keep away from working MOT
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101111
Tue Sept 23 2008, 10:00AM
101111 Registered Member #575 Joined: Sun Mar 11 2007, 04:00AM
Location: Norway
Posts: 263
 		I don't think it will work to use a MOT to do that, you could try but I doubt it will work.
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Dr. Dark Current
Tue Sept 23 2008, 10:06AM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
 		It will not work. Connect it to mains, but be warned it can draw up to 5000VA from the mains when shorted.
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Steve Conner
Tue Sept 23 2008, 10:24AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
 		Why wouldn't it work? I'm sure if you shoved a high enough DC voltage into it, it would start oscillating somehow. suprised

Maybe use one of those bipolar transistor bricks out of an old motor drive. The things they used to use before IGBTs were invented.
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Dr. Dark Current
Tue Sept 23 2008, 11:20AM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
Steve McConner wrote ...

Why wouldn't it work? I'm sure if you shoved a high enough DC voltage into it, it would start oscillating somehow. suprised

Maybe use one of those bipolar transistor bricks out of an old motor drive. The things they used to use before IGBTs were invented.
Because there are too few "feedback" turns? If you started to shoving enough voltage into it to start oscillate, the transistor would probably be long dead by overvoltage by that time, not saying the MOT secondary would probably spark over by voltage spikes and higher frequency...
Maybe someone can prove me wrong? smile
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LUGIA
Thu Sept 25 2008, 03:54AM
LUGIA Registered Member #1706 Joined: Sat Sept 20 2008, 05:41PM
Location: Suratthani, Thailand
Posts: 12
 		...
Thank you for help

"few "feedback" turns?" How many turn to add? Oh i forget number of TR it's "2N3055"

OR do you have a other circuitry can be use with Microwave Transformer to make a HV?

Thank You Very Much
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Firefox
Thu Sept 25 2008, 04:36AM
Firefox Registered Member #1389 Joined: Thu Mar 13 2008, 12:50AM
Location: Pittsburgh, PA
Posts: 346
 		Uhhh, yeah. You can plug it into the wall with some balast. Like a 100W light bulb. A MOT is a 50 or 60Hz iron core transformer. However, if you are new to HV, this isn't a good thing to start out with. A MOT is deadly, even when balasted. Find a TV flyback or small high frequency transformer to play with. They hurt like no tomorrow if you are dumb enough to get shocked by one, but generally they aren't deadly. Some other things to get started with are plasma globe drivers and lamp driver boards from scanners.
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LUGIA
Thu Sept 25 2008, 03:50PM
LUGIA Registered Member #1706 Joined: Sat Sept 20 2008, 05:41PM
Location: Suratthani, Thailand
Posts: 12
 		Oh Thank you.
Do you have any circuit to use with Flyback(Easy easy and can use with low voltage Please).
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teslacoolguy
Thu Sept 25 2008, 04:55PM
teslacoolguy Registered Member #1107 Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
 		the most easy flyback circuit is actually the one you were going to use to power your mot :P. Just wrap the primary coil about 18 turns and the feedback coil about 5 turns around the exposed part of the ferrite core on the flyback. After you build everything just power it with 12v.
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