High Voltage CFL Circuit

[nievesoliveras]

not only the oscillator.
the frequency in relation to the transformer is also important.
most of these circuits run at around 35Khz unloaded.

Here is one 12volt in 1200volt out.

Thank you @xs-nrg!

I have one working since last year, using the same 9v battery.
That was why I wanted to know its inner connections.

Every time the lights go out here I use that tad170 light and it always work.

Jesus

[XS-NRG]

If you use a cfl with filaments at both ends these inverters are no good.
You will get black tube ends rather fast because of the metal that evaporates and condenses on the glass tube ends.
If this is the case the tube will not work for long.
Normally these types of tubes also recieve a low voltage +/- 15 volt on it's filaments to pre heat the gas and to release electrons for a quick ignition.

So in essence, not all cfl's are suitable for this type of power supply.
Only the ones with the solid electrodes are suitable.

[kooler]

this is a modded picture can you tell ?  haha

[Pirate88179]

@ Jesus:

PM Jeanna and ask her.  I don't recall which circuit exactly but, her Jeanna Circuit does a great job on CFL's.  They use the large toroid which is hard to get these days so she developed another circuit using an easily available toroid that also lights a cfl very well.

@ All:

Remember, the transformer Jesus is speaking about was designed (at least from my brief readings) to light a CCFL, not a cfl.  The cold cathode lights, used mainly for back lighting displays on computers and such, is a totally different animal from the cfl.

Bill

[nievesoliveras]

@xs-nrg

If you use a cfl with filaments at both ends these inverters are no good.

I used the small spiral tube.

@kooler

this is a modded picture can you tell ?  haha

I does look good!

@pirate

PM Jeanna...  , her ... Circuit does a great job on CFL's...They use the large toroid...

I will contact her.


Jesus