So i just need a stable high voltage PSU with the most current output with a multiplier stage to produce enough power to run the tubes within ms range. It is possible that your PSU is limiting the current too much. A pair of them used and pulsed at opposite times and with opposite voltages would work much better. I do have some back current I need to adjust with a varistor but so far nothing is heating up at all. The capacitor will absorb high voltage spikes that could come from inductive kick back from the transformer. To increase the field and get a bulb to light-up even at a distance of 30cm and above we use the equations below. I have heard and it seems very plausible to me I am no electrical engineer that the circuit works in the following manner:
|Date Added:||14 November 2004|
|File Size:||36.71 Mb|
|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|
|Price:||Free* [*Free Regsitration Required]|
Here it is again.
Buying from authorized distributors or direct from the factory ensures coiil you’re getting the genuine item. You would need to have a signal from the hall effect sensor that goes high when you want the coil to spark.
The level of the HF signal reaching the power transistor will be proportional to voltage applied ciil the modulation input. It averages around 20kV. Different coils work with different frequency ranges. High Voltage is generated by this device!
Also the output voltage seems fairly independent of the input voltage, which is also strange to me. With or without the coil.
You could always add this later if you are not satisfied with the performance of your current design. I just have two more questions.
Is there any reason the former arrangement seems to be preferred? I have HV wires soldered to the screw terminals and I tried to insulate the primary terminal with hot glue last night but no go. When a logic high one set of transistors allows current through the load in one direction. The power supply I use is a large lab type I found it in the trash with four channels; I am using the 12VDC output for this project.
This does not translate to common BJTs, which have “gain” and “saturation” statistics instead. I would also ask how it is possible for either plug to continue to fire if the other end is actually disconnected from its respective spark plug? If I make some mistakes, please forgive me.
So try each configuration 8 of them with two sets of coils until it whines Occasionally I’ll find one that doesn’t wine but VERY rarely. You could try to add a few more feedback windings and not have more than 8 primary windings to get a higher current running in the primary to get a bigger output.
The cokl of the coil does drop off as frequency increases due to losses in the core. Thanks… I have tried with a battery I assume a battery can deliver a very large current but I still get very small sparks. This is an old article and there are much better alternatives available now. The cost of those power resistors alone will be considerable. Aug 30, 7. Have you read the other comments on this page, others have also tried their luck with similar transistors.
Windings If you have an old flyback with removable windings, don’t be in such a hurry to remove them and wind you own. I have the schematic on AutoCad LT. I received an answer to my last message.
The photographs give the impression of a Rhumkorff coil, probably with a “buzzer” type of interrupter.
As you can see, only certain transistors work well with the new flybacks as most of them fry 2n30555 quickly and cost you dollars: Do you have any ideas why that is happening?
My plan was to use a auto coil. It keeps telling me that the upload failed. Aug 30, 1.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.