17 Threads found on edaboard.com: Neon Transformer
neon-tube have two electrode,and work with high voltage - as bunalmis wrote - without any starter. Maybe you need a starter for fluorescent-lamp (with four electrodes). Originally it`s a bimetall-starter, but existiert a small electronics with triac.
Hobby Circuits and Small Projects Problems :: 21.01.2003 16:44 :: Sebi :: Replies: 4 :: Views: 3868
unless it is an autotransformer (which neon transformers usually arent), u can do whatever u want with it, provided that u dont exceed the ratings. It is just two isolated inductors.
Electronic Elementary Questions :: 29.04.2007 10:00 :: a_aziz :: Replies: 14 :: Views: 785
Cannot really think why you would want a neon on 12v, rather than a led. A simple oscillator and step up transformer will do, you should only need around a milliamp at 90v or more. No need to rectify. Not sure what transformer you would use though, perhaps something from an old transistor radio would do. Not aware that there are any circuits (...)
Hobby Circuits and Small Projects Problems :: 21.01.2009 10:59 :: GrandAlf :: Replies: 6 :: Views: 10206
My end goal is to produce 170-200 volts DC at up to 5 watts. The circuit on my bench at the moment is a simple push-pull using a CCFL transfomer I bought off Digikey. However, I cannot seem to tune the circuit. It is drawing too much current and the MOSFETs get warm after a while.
Here's the circuit (stripped down):
Power Electronics :: 19.02.2011 01:57 :: AleXYZ :: Replies: 1 :: Views: 616
hai i am arun magesh. i am doing my eee.. i want to make an jacobs ladder. i dont know wheter i have to go for neon transformer or the flyback trasformer with cfl circuit.. i want it little small. jus around 25 to 30 cm.
another question is the cfl circuit prodeuces several thousand of voltage in the starting after it detects the filament it wil
Hobby Circuits and Small Projects Problems :: 04.03.2011 00:58 :: Arunmag :: Replies: 1 :: Views: 1224
Do you actually need to design one yourself? If you just need to use such a transformer, you could probably just use an old neon sign transformer (NST).
Power Electronics :: 26.03.2013 18:17 :: mtwieg :: Replies: 3 :: Views: 232
Hobby Circuits and Small Projects Problems :: 07.05.2004 09:13 :: cozturk :: Replies: 5 :: Views: 2899
I need to know like generating HV to ignite neon tubes the voltage that I need to obtain is of 15000v/30mA
Analog Circuit Design :: 27.10.2004 23:05 :: gigio224 :: Replies: 1 :: Views: 611
what sort of neon are you talking about tiny neon bulb or neon tube? Have you any project like that
Hobby Circuits and Small Projects Problems :: 05.05.2006 02:48 :: H_u_n_t_e_r :: Replies: 6 :: Views: 974
Easiest might be to use a mains driven neon sign transformer.
More electronic techniques include:
Or, perhaps, a simple application using an automotive ignition coil.
You could probably get something to work based on a strobe light transformer.
Analog Circuit Design :: 04.11.2006 19:19 :: ionp :: Replies: 5 :: Views: 954
It depends on where you can put your sensor:
- Upstream of the load's ON switch. You will need to sense the AC current. As one of the approaches you can do it with a current-sense transformer. Your sensor will always "see" the AC voltage. LED and neon bulb will be lit all the time and will not discriminate between load being on of off.
Hobby Circuits and Small Projects Problems :: 04.07.2009 18:19 :: kender :: Replies: 2 :: Views: 1907
If, frequency will not your criteria, purchase a transformer of 12 volt, 500mA step down center tap type from 230 Volt. Feed positive of battery to center tap of 12 volt, base Resistance, 1K, 1W, Capacotor 10?F, 63V. Power up and check the output. Mind it, being isolated, neon tester must not glow on one side, until you ground the other side. Dont
Power Electronics :: 18.03.2010 13:16 :: BADFLOPPY :: Replies: 5 :: Views: 3781
Are the lights neon tubes? Then they operate from thousands of volts.
Is the voltage stepup transformer built into the base of each neon tube?
Can you ask the Chinese manufacturer the frequency, voltage and current that is fed to each transformer?
Electronic Elementary Questions :: 25.04.2010 12:55 :: Audioguru :: Replies: 5 :: Views: 535
This is the output transformer circuit of an inverter, Q and Q6 are the output MOSFETS and are being driven by the MCU (Micro Controller Unit) in PUSH-PULL action at the output windings of the trafo (5-6 and 4-7) and the winding 2-9 is used for supplying the MCU as the self-looped supply circuit. Hope this may satisfy you a bit. :smile:
Power Electronics :: 11.08.2011 07:42 :: Raza :: Replies: 5 :: Views: 839
AC power switches with illumination often have a neon lamp with a dropping resistor in series inside. Use an ohmmeter to find the main switching contact pair; the remaining terminal should be connected to ground or the other AC line to make the lamp glow. Check if the dropping resistor really is inside (~100 kOhm), otherwise you would destroy the n
Hobby Circuits and Small Projects Problems :: 28.12.2011 17:57 :: jiripolivka :: Replies: 9 :: Views: 1227
Also, does it make sense to model the spark gap as a 1+ meg resistor?
A spark gap resembles a neon bulb, except its threshold is more like 1,000 V rather than 70 V.
I know of a simulator which contains a model of a spark gap. It's at falstad.com. It's animated and interactive both.
CLick the link below to open the webs
Hobby Circuits and Small Projects Problems :: 14.09.2012 00:25 :: BradtheRad :: Replies: 3 :: Views: 1171
I guess you don't see the neon tube light because it's triggering the thyristor after a few microseconds.
The observed spark suggests that the trigger circuit is working correctly. If you plug in a suitable xenon tube, it should work. Please consider that without a tube in place, the trigger voltage is probably higher and more likely causing fla
Analog Circuit Design :: 09.02.2013 06:10 :: FvM :: Replies: 11 :: Views: 338