Flyback joule

[Lourens]

I made a joule with a flyback it has a big output but doest light my bulbs

 

[Alec_t]

Welcome to EP!
Post your schematic, plus details of the bulbs and power supply, and perhaps we can help.

 

[Lourens]

Okay will do within 30 min.

 

[Lourens]

Here it is

 

[shrtrnd]

Did you check to see if you burned-out the filaments in those bubls?

 

[Lourens]

Hi shrtrnd the bulb works fine checcked in on the houses power nothing burned

 

[shrtrnd]

Is it a standard incandescent bulb? Rated for what voltage? What's the wattage rating?

 

[(*steve*)]

It's likely that either the circuit provides insufficient power to light the bulb or the oscillator stops when the bulb is attached.

Have you measured the output voltage and/or current with the bulb connected?

What wattage is the bulb? Can you try something smaller?

 

[hevans1944]

I don't see a light bulb on your schematic. Where are you connecting the bulb? If you are trying to operate the light bulb from the secondary winding, you will need a neon lamp and a large-values current-limiting resistor in series with the lamp... perhaps ten to a hundred meg-ohms or greater, depending on how many thousands of volts the secondary is producing. Pretty nice arc though.

 

[Lourens]

I connect the bulb on the neg and posotive that comes from the flyback. I'm new to this so I juat want some help ext please and thanks man. What is yhe oscilator?

 

[(*steve*)]

Do you connect it where the spark comes from?

 

[Lourens]

Hevans can you add me on fb or something I really need help I'm trying to create something awesome

 

[Lourens]

Yes. Is that wrong?

 

[Lourens]

Yes steve I connect it where the spark comes from

 

[(*steve*)]

OK, Your problem is that the flyback transformer is designed for very high voltage at low current. It has a high internal resistance and probably an integrated rectifier. What you ideally need to look for is a transformer designed for your mains voltage with something like a 16V centre tapped winding.

 

[hevans1944]

Hevans can you add me on fb or something I really need help I'm trying to create something awesome

I do "social networking" here and in other forums. Facebook... not so much. Post your questions here so the entire community can see and help you.

I suspect you are trying to build a classic "joule thief" circuit and you should Google that phrase for background information. A fly-back transformer salvaged from a broken television set is a wonderful toy, but hardly what I would have used to get my initial experience in electronics. Heh. I started with a Ford spark-coil that came packaged in a wooden box with an adjustable interrupter on one end. Check out the Boy Electrician for details.

 

[Lourens]

Where can I get the correct transformer or how can I male one for my requirments. ?

 

[Lourens]

Steve where can I find such transformer or build it?

 

[Lourens]

Let me ask this. I need a schematic for something tjat will boost a small current to light a bulb. I saw a guy doing so with 9v battery but he did not give schematic. Its a super joule ringer. He used a toroid rod and transistor ext will give link now

 

[Lourens]

http://m.youtube.com/#/watch?v=DcFHZMhnV2g