I took apart a hologram t.v (the ones with projection) and i cannot find a flyback transformer. give me a pic.
Question by knektek | last reply
I have an urge to play with high voltage. Maybe a Jacobs' Ladder, maybe a plasma speaker, maybe just make sparks and burn myself. Does the make / model of flyback transformer matter? Or do they all connect the same way? For instance, would you recommend this model?
Question by Kiteman | last reply
I want to drive a flyback i have laying around i have one of these modules: http://www.ebay.com/itm/221623454225?_trksid=p2060353.m2749.l2649&ssPageName;=STRK%3AMEBIDX%3AIT which can generate 2khz square wave and i want it to drive a mosfet irfp250n which will drive the flyback the problem is the flyback normally runs at 16-25khz and i am doubtful whether the 2khz will to enough to reach the resonance of the transformer Will it work?
Question by TheGreatResistor | last reply
I have recently dismantled an old CRT monitor i have had lying around for ages to get the flyback transformer. I have been trying to get the correct pins to using methods found on the internet none of which have seemed to work i have found what should be the primary coil and have applied the current and placed the high voltage output in front of each pin to try and find the high voltage ground, this has not worked so i have applied the current to all of the pins in every combination and still i am unable to get it to work. Please help me.
Question by Hav0c | last reply
Hello, everyone. I have a picture of the flyback transformer pinout on the circuit board. I was wondering if someone could confirm that the +14v and -14v are for the primary coils and the GND is 0v of the secondary. Thanks. Any other info is very much welcome =) picture: http://www.flickr.com/photos/100764000@N03/9587380434/
Question by raccoondog | last reply
Hi every one, I've been working for several weeks on a diagram of flyback driver referring to this video to get an electric arc which can handle a day turned on: http://www.youtube.com/watch?v=DE4GfpOSWW0 Here is the assembly that the author gave me : http://st-ware.com/files/misc/smallgen_en.png And here is the assembly I'm working on : http://alexmira.fr/images/schema00.jpg The RC1 capacitor is either a 630V 220nF MKP is a 1uF 630V. I've done and redone it on my breadboard but impossible to get anything. Could you help me to acheive this or tell me what are my mistakes. Thank you in advance.
Topic by exesnot | last reply
For experimental purposes i want to remove the ferrite core from a flyback transformer. I want to be able to remove it without damaging the primary or secondary windings. I don't care if the core is ruined. Someone suggested boiling the transformer in water. Has this been successfully done or is this an untried suggestion?
Question by Blake | last reply
Hi. I am trying to build a Tesla Coil, and there are few thins I'd like to know. First, I built this PWM (made a few modifications, IRF530 MOSFET and 10nF ceramic caps instead) and connected it to a self wound primary of my fuh29A001V flyback, and it works perfectly, sparks and stuff. Can this power my Tesla Coil? Next, if it can work, how do I calculate capacitance needed for my tank capacitor? Miloš
Question by Mvtnns
Using garbage and no stuff like 805868 transistors or whatever you call that. it shiould be not form a tv crt
I've been kicking myself for months now trying to get my flybacks to operate. It seems that no matter what driver I build, or how carefully I assemble it, the only thing I get is silence. Even the simple 2n3055 driver does not work for me. I've checked the transistors, they appear to be fine. I have no idea what to do. Any ideas?
Question by iTixle | last reply
Its just that I have been scouring the web in search of a schematic with details specifying particular components, to no avail. Is there a schematic out there that shows the integration of a flyback transformer specifically?
Question by Phildo1024 | last reply
I am having problems with the flyback transformer. For primer on where I am at, following the tutorial to locate the 0v pin the voltage was win the specified range. The flyback is from a old monitor that was monochrome but was still working. No datasheet could be obtained. 10 pins if it matters. I am following the struct on using the single transistor driver. Specifically a 2n3055 from radio shack. Lets pretend i wouldn't waste your time if i didn't triple quadruple check the wiring first. using 24v dc power supply schematic and page i based my driver on. i am not getting the high pitched noise from the flyback. i have 5w 220 resistor and a 5w 27 resistor . my resistance ratio is important. correct? since there is a voltage divider there. i know its vague but can someone give me some direction to work out my problems
Topic by Chingasman | last reply
Hi, I have dc half wave modern type DST flyback from a computer CRT and put out around 30kv. I wonder: Is there an inbuilt voltage doubler/tripler in these modern half-wave DC DST flyback or just a inbuilt diode? I became every confused from very contradiction info. Why I ask? I want to know as well as I would want to build a multiplier for the flyback. I know mine isn't the old AC type but the DST should be a DC pulsed ...The flyback I have just looks like these typoical modern DST ones here: http://www.imagebam.com/image/b88cbf268367234 . Your help would be tremendously relieving for me. I have been struggling to find out for a while now... Thanks a lot
Question by leviterande | last reply
Hello, I'd like to request someone to share their knowledge about their "flyback" knowledge or experiences with me since I'm having trouble finding the primary coil pins with my flyback transformer. I'm constructing my own HV power supply and I decided to go through this tutorial. I've read much on the web and found the 0v output pin of my flyback. The problem is .. I couldn't find the primary and secondary since I'm using an analog multimeter and the tutorials on the web are all digital.. When I test the pins with my multimeter set to ohm range of x1, I do not get a pair of 1 ohm pins but instead I got the result of "Continuity" when I test on following pins, they seems to be connected but none of the pins show to 1 ohm.. and thus I've adjust the Ohm Adjustment. The results are Continuity 1 : 1,2,6,8 Continuity 2 : 3,4,7,10 No Continuity: 5,9 Pin no 5 is 0v output.. I've attached the pin number diagram at photos... my drawing and actual pins.. Have you got any idea to find out the primary coil? I've also attach my driver from CFL.. Thanks
Topic by _π | last reply
. the model is a sampo FEC061 pulled from an old toshiba CRT monitor. thanks greatly to any one who can help it is much appreciated.
Question by blacjack1 | last reply
My flyback transformer has 9 pins at the bottem and is a "L40B02510 MSKK SANYO" I was hoping that i couuld just attach the + to one pin and the - to another pin (using one 9 volt battery) then add a ground to another pin.But im sure its not that easy if it is please tell what pins to use. I dont have a voltmeter to find the primary and secondary. I really need help and please dont send me link that will have me searching all over the internet i have spent weeks tyring to get this to work and nothing works.
Question by talbayaty | last reply
Hello, I am confused with this flyback transformer I have. I have a pulsed DC input on the primary coil (pulses from 0 to 15V) and that creates high voltage in the secondary coil. When I connect that input in the opposite direction (wrong polarity) I don't get high voltage any more. The possible explanation for this is that the primary coil has a diode in series with it. Now, I'm confused by this because I tested if there actually Was a diode in there (by connecting a DC supply and a DC motor, in series with the coil) and the motor always works! (also tested with a halogen light) I put the coil in series with the motor to test if there is a diode inside. If there would be one inside, the motor should not work in one of the two cases, when I switch the pins of the primary coil. So, as the results of the test tell me: there is no diode in series with the primary coil. could it be possible that there is a diode in parallel with the primary coil? If that's not possible, how come the flyback is not working when I connect the polarity incorrectly? Could someone please help me out with this? Thanks, Electorials
Question by DELETED_Electorials | last reply
I want to make a flyback driver, i need inductor 200 uH
Question by Rendydevara | last reply
Ok, i have this transformer that i pulled out of a mac computer a couple years ago, i dont have it with me nut i think its a flyback. If it is, could i just hook it up to a battery and capacitor to make a charger or do i have to build some sort of modulator or switcher? Almost anything helps, thanks.
Question by budhaztm | last reply
Question by danydady | last reply
While working and revising my flyback driver design, I had one of the 1N4148 diodes that I was using as protection get cooked! (it seemed to fail short circuit) I have not tested to see if the MOSFET survived yet. Obviously the diode needs to react fast and handle avalanching energy well. Any suggestions? are some beefy schottky diodes suitable? Also, does making any ordinary diode go into that avalanche or zener reverse breakdown region cause it to potentially lock up and conduct for a period longer than the EMF spikes I'm dealing with? Or with any sort of hysteresis (like when using neon lamps)? Originally my wimpy glass 1N4148 diodes was wired in parallel directly across the MOSFET drain and source reverse biased. However, carefully examining this tesla coil schematic,it appears that there is both a forward biased diode in series with the MOSFETs, and another reverse biased diode(s) in parallel across the MOSFET & diode. It does not look like a bad idea given one the reverse biased diodes can shunt EMF spikes that are too large while the other isolates them from the MOSFET. My only concern is how lossy that would be at 12V operation.
Question by -max- | last reply
Hello! I'm getting a bit tired of playing with disposable cameras... there's only so much you can do with them. Well, I acquired a CRT, presumably from an oscilloscope, a couple of weeks ago and I want to get the flyback out of it (and figure out how to use it) so I can make a Jacob's ladder or Tesla coil. Does anyone have any ideas on how to proceed? Here are some pictures.
Topic by SirCheez | last reply
What's the right transistor for an old Flyback transformers??
Question by ouwelou | last reply
Can i use N channel MOSFET for a flyback transformer?
Question by ouwelou | last reply
Can I use are DC Flyback Transformer for tesla coil? Just like a ZVS Flyback Driver If can please post the image. If not please explain
Question by james34602 | last reply
I am wondering on how to remove the flyback from modern tv's. On another note, is it possible that i could have blown the diode in the flyback because of driving it too hard?
Question by Electronics111 | last reply
I am using the core of a broken flyback that I removed
Question by electricfan | last reply
Is there any guides on how to do it?
Question by madrobot3600 | last reply
I want to charge a capacitor bank of 400-450 volts (I am not decided, yet) and I want to use a flyback transformer, I want to use a input voltage from 9-12vdc. A recomendation of a flyback transformer that I can use or some schematics would be great. Thanks AMD
Question by Kurt Gerhard | last reply
Question by theVader75 | last reply
The circuit i attempting to drive is one from a plasma globe. I was not sure if the excess output of the transformer would "fry" components on the board
Question by firemanfu | last reply
I got a free TV off FreeCycle, a Magnavox 51MP6100D/37 (same thing from Philips with a better site). When powered on, there is no picture, and the flyback arcs...I can hear the sparking, and there's a blue glow from inside. Could this just be a buildup of gunk that a shot of electrical cleaner might fix, or would repair require replacing the whole flyback?
Question by CameronSS | last reply
I recently just finished desoldering components from a CRT TV's circuit boards and I got the flyback transformer. What can I do with this flyback transformer? Can I make an ozone generator out of it? I've seen how to make an ozone generator using a neon sign transformer but those are expensive. Maybe I can use a flyback transformer to make the high voltages instead?
Question by poiihy | last reply
A while back, I decided to submerge my flyback in canola oil to stop it from ruining itself. As it turns out, submerging a flyback in canola oil is a very stupid idea. I want to clean all the oil off of it so I can do it right the next time, but I have no idea how to safely do that without damaging the flyback. Can anyone help me out?
Question by Shagglepuff | last reply
Hello people! I recently got my hands on a flyback transformer (that is, I finally got over it and got it out of the monitor :p ) And I want to make a flyback driver. I already have a normal wall wart hooked up backward. I was thinking that I could connect the wall wart to the flyback and create massive sparks. Could I directly solder the flyback and the other transformer together? If so, what transistor would you advise to use in my 555 circuit in front of the first, normal transformer?
Question by dunnos | last reply
I have already looked at the lab hv-ps page and cannot find the pinout for my flyback transformer. Can anyone help me?
Question by immune2u | last reply
Hi, I made a flyback driver from a 555 timer 2 days ago and now its not working. I think the flyback broke but i dont know. I ran the driver with 6 volts at first but got tired of the 1 cm sparks so I used 12 volts instead and it stopped working. I left it alone for a while, and when i tested it again, it worked again. Now its not working again and i think the flyback broke this time but im not sure.
Question by joeismydad | last reply
Hello, I was wondering if any dangerous x-rays or other caustic things like ozone are created when I'm testing my flyback transformers. How much ozone and how much x-rays is dangerous to humans? could long-term use of flybacks create radiation poisoning? I'm actually a little worried :/
Question by DELETED_Electorials | last reply
If yes, what changes would there be in its design from one that does use a neon sign transformer? If not, what can I do with my surplus of flyback transformers?
Question by Justin the Red | last reply
Can Flyback Transformer drive by Induction Oven? I thing Induction Oven can create 20kHz-40kHz. http://en.wikipedia.org/wiki/Induction_cooking And Flyback Transformer need high frequency to work. I thing waveform is not a problem. I used plasma ball driver , CFL ballast driver and Halogen Transformer as my FBT driver . And work well.
Question by james34602 | last reply
How to know if the feedback coil work in the flyback transformer and how to know the pins?
Question by ouwelou | last reply
I have a flyback transformer that I pulled out of an old tv that I didn't use, and I have been trying to hook it up to a driver to get some arcs. The driver I am using is a basic driver that utilizes a NPN 2n3055 transistor and a couple of resistors. I am powering it off a 12V drill battery. Additionally I have checked the transistor with a multimeter and it checks out ok. As far as the coils go, I have tried using coils that I located on the flyback, and I tried winding my own on the exposed ferrite core. What happens is I hook it up to the power source and nothing happens, I don't even hear the high pitched whining noise that is characteristic of the high frequency driver. I don't know what to do, I have tried a lot of stuff. I'm starting to think that maybe I'm having power issues? All the instructables that I have seen use sealed lead-acid batteries which produce more current than my drill battery which is at least 12 amps. How much current is needed? Any suggestions to get this working would be well appreciated. Thanks :) -Andrew
Question by jarheadwithm16 | last reply