Op-Amps, PWM and Ignition Coils Tutorial (Part 3/3)

[maguyver1969]

If it is a standard coil like the one in your video and with the gap at .45 the voltage is gona be 15-30,000

[evhgl87]

I would love for you to apply higher mathematical theory in relation to circuit design. Very few people have the theoretical knowledge to be able to further explain outside of simple terminology what is actually going on - current undergrad

[Khwartz]

You're just perfect teacher! :) :-bd

[mlhvdmeij]

I don't think a clamping diode in the darlington will do anything in this circuit. Also, the secundary voltage is entirely defined by di/dt in the secondary winding and has nothing to do anymore with the primary winding. I agree with Atlascol that there should actually be a diode in the secondary winding to ensure no current can flow through the secondary winding while the transformer is in it's charging cycle.

[stivep1]

It is not AWG generator but amplifier operated by AWG.10KHz-1MHz 1-10V

I will give you some hints:

SG interface parts::LM393(both comparators used),1N4198 (2 pieces)1N4198 (2),21n60(2), transformer with primary winding with center lead. 4 secondary winding ( the same-equal)

H-bridge driver:starts after primary: 7N80(4), 1 special transformer 1:10 ratio,permeability 2000 (primary is spread equally) secondary is spread equally) 500V, 2A For you it should be 1 day of thinking.

Wesley

[stivep1]

by the voltage range 0-20 000V up to 1 Mhz no distortion to its extend of maximum of possibility

I have on bench 10kHz to 1 MHz 0-10 000V AWG right now that I'm in process of assembly and testing

I wish you the best.

You may become a genius or you may waste your time working for some lab or some employer It is up to you young man....All you need is motivation....

Wesley

[stivep1]

30 000V per centimeter

You did not show waveform at the output, at the spark gap and spectral components on spectrum analyzer, The video series is extremely educational . You suppose to be a teacher.

That is the best job for you. Another suggestion for project: HOW WOULD YOU BUILD AWG

FOR 2000-2000V? 0-1MHz Basics are good but your brain power needs excessive motivation to the area that is going to sparkle your true potential.

Wesley

PS: Science is my state of conciseness and my devotion.

[stivep1]

good job. Thank you. I'm in similar scientific field but directed to Overunity.

Is it possible? I have seen it in my own eyes. I have hold in my own hands device that was delivering power for 30 minutes activated by one single 1 second impulse and than at no external power supply or any power supply at all , working by itself.

Wesley

[maynardr6]

I appreciate you taking the time to refine your presentations. You're doing a great job. I'm just learning, but I may end up doing this as a career one day.

[mkerna]

Very good presentation flow and very good explanations. Great job, Shahriar!

[raguaviva]

BTW you were so close to build a Jacobs ladder!! maybe you can post a bonus track showing it :-)

[raguaviva]

Love every bit of the video! Thanks for sharing!

[jordanwaeles]

Thank you so much for the stunning videos (bad pun intented). I was going to say that I felt a bit lost in the maths (I don't know my formulas and electronics are only a new hobby for me)... but as the other commenters said, i can still skip those parts or take them slower. Anyway, thanks for all the time you invest making us those neat videos!

[goddamnox]

Great videos, thank you. I would like to see some more theory to back up the practical circuits, as someone said you can go back and revisit if things dont click first time.

It would be good to have that mix of practical demos and theory all in one place. There are very few youtube channels that manage to combine both these things effectively..... Keep up the good work : )

[lebeyes]

@4:44 The TIP147 is PNP, not NPN.

[TheSignalPathBlog]

@lebeyes Yes! Thank you. The schematic is correct which shows a PNP device.

[keenantims]

I don't think a complete explanation of the theory is necessary, but some component sizing guidelines or other practical pointers would be nice. I've found very little information on what values to use for some really simple opamp circuits like the integrator.

[epatto]

I vote for more theoretical explanation for the formulas and general science behind the practical side. Even if you don't understand everything right then and there, if you come back to the topic at a later time it's much easier to get started again. And possibly if you remember where you saw the explanation earlier, you can look it up.

I enjoy your videos quite much, even though I am familiar with the topics, they are very well presented. Please keep them coming regularly. :-)

[Jiraya12345]

These videos are fantastic, thank you so much!

And as I recall, it takes about 50,000V to create an inch long spark, so I suppose that would be about 20,000V per cm? I can't remember exactly, but I think that's about right.

[TheSignalPathBlog]

@Jiraya12345 Yeah, I think it is about 3kV per millimeter.

[kibi15]

@TheSignalPathBlog

I agree. When I did a bit of work with lightning protection, I remember as a general rule that air ionised at 3MV per metre.

Thanks ever so much for your video's. They are very well put together, informative and enjoyable to watch. Even though I have a reasonable amount of experience with electronics, I still enjoy watching your video's. Please keep up the good work.

[thewii552]

@TheSignalPathBlog no, it is around 1kV per millimeter. I am pretty sure the breakdown voltage is around 300 volts, too.

[Atlascol]

Great video!. But i've got a question, isn't necessary a diode for the transformer?

[TheSignalPathBlog]

@Atlascol Are you referring at the input or the output of the transformer? Also, the TIP147 Darlington device that I am using, has a built in clamping diode in it. I did not show this on the schematic.

[dmxspider]

Thank you for these awesome videos!