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Registered Member #2871
Joined: Sat May 22 2010, 06:50PM
Location:
Posts: 81
i bought a 2n3055 transistor and two 0,22 and 0,47 mtk capacitors so i am to way for second try!I think to use a pc psu 12v 16A the 2n3055 transistor will could carry this power?
Registered Member #2925
Joined: Sun Jun 13 2010, 06:38PM
Location:
Posts: 4
Mads Barnkob wrote ...
Hellraiser wrote ...
The driver drains all tension from battery and it shows decreasing until 0V.
You found your problem, use a transformer instead.
Just because the batteries was pulled out of a float charge setup does not mean they are any good...
Thank you guys i will try run this in a power source!
Another question i have here a real 350W seventeam power source for pc, once i test trading a zener 5V reference for CI, for 8.2V and get 14V and if take out this diode i will have arround 30V can i run the driver with that source? You guys know how to use that PC source in this driver?
I allready destroy a working LG CTR for built this, i wanna see this runing!
Registered Member #2871
Joined: Sat May 22 2010, 06:50PM
Location:
Posts: 81
i bought a RGP30M diode rate at 3A and 1000v..Its ok or it must be 200v?Also if i use a 12v 16A pc psu this diode will be ok?And something else,a 2n3055 transistor is ok for a 12v 16A power source?
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
aris: the diode is fine, the transistor too. Just beware of fakes, there are a lot of fakes of the 2nN3055 transistor. The current on the power supply is just the maximum it can put out, the circuit will draw how much it needs (and with 12V the performance probably wont be great, or it wont start at all. If it doesn't start, decrease the value of the 470ohm resistor).
Registered Member #2871
Joined: Sat May 22 2010, 06:50PM
Location:
Posts: 81
thank you very much!I have to make a dicission:An ATX pc psu power supply or a AT?Which is better for this circuit and more confortable and easy in use?
Registered Member #2871
Joined: Sat May 22 2010, 06:50PM
Location:
Posts: 81
I made the circuit and i power it up with a pc psu 12v 12A....When i turned on the power supply i didn't take spark but the moment i turn it off i take an instantly spark...After i disconnect the 250v capacitor and power on the circuit, now i have a good purple spark...Then i try to connect again the capacitor and IT WORKS,i have a burnt purple spark!The bad point is that when i turn off again the power supply and i wait 5minutes..Then i power it up and again nothing,i can take again an instantly spark when i turn it off....
I think the problem is the transistor(2n3055) because the circuit stop to work when it become cool,and i need to connect-disconnect the capacitor.I have tried 4-5capacitors of different uF but all have the same problem..It;s very strange:/ What is going wrong?
Registered Member #2591
Joined: Fri Jan 01 2010, 11:58AM
Location: netherlands
Posts: 76
i have build this circuit for my homemade hv-transformer to zap bugs away, and it works allmost perfect. but when the secondary is short, the circuit is not oscilating anymore, what is the best thing i can try? 1: feedback closer to the core (is now over the sec. winding. 2: change the falue of the resistors 3: more turns of the feedback coil 4: something else
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Improved single transistor flyback driver
