Joule Thief 101

[MileHigh]

Brad:

No guts to apologize for posting a schematic in the thread that doesn't match the circuit in the clip, twice.

If you new anything about the SSG circuit

I know everything about the SSG, you are just having a pissing competition with yourself.  Put the bloody dots on your transformer schematics like any self-respecting experimenter would do.  New is the new new, who would have none?

Thankfully everyone here(other than your self) new exactly what i was showing,and have no problem with the schematic.

My knew crystal ball is telling me something much different than your old crystal ball.

No,it did not MH,and this is where bench time once again win's hands down. 50 turn's of .4mm wire oscillating at that frequency--wonder how much the resistance rises due to the skin effect at that frequency ?. The current flowing through L2 would have to be about 8 time's less than the current flowing through L1,due to there being an 8:1 winding ratio--would it not?. But the current would be raised i guess,as the voltage is dropped. But what is that voltage drop to that of the supply voltage?. Oh wait,the supply voltage was less than the voltage at the base of the transistor-about 3 times less (http://overunity.com/Smileys/default/wink.gif). There is also the fact that the transistor stayed at room temperature,which would indicate very little power dissipated as heat.

Stream of consciousness that doesn't even make any sense.  Just use a current sensing resistor and choose the value carefully and come up with a method to double-check your results.

Wow, the supply voltage was low.  Makes you wonder how much the current would be and how much of a price you would have to pay in wasted energy if the supply voltage was 1.5 volts, doesn't it?  I seriously doubt that occurred to you.

Mmm-you mean like using a super cap charged to a certain voltage,then doing a rundown time test to say .4 volt's on the cap,while measuring the light output with my lux meter ?.Hell MH,i would never had thought about doing that before making my claim (http://overunity.com/Smileys/default/rolleyes.gif)
Of course you will want video proof--yeah?
Let me know,and i will waste a little more of my time on you.

No, make proper measurements with your equipment.

Could you draw up the current loop during the flyback pulse of each circuit,and post them here please?.

?

After you are prodded you post a proper schematic.  In the future you need to prod yourself beforehand to post a proper schematic.

I will take your complete and total silence about how a Joule Thief normally operates as an admission that I was correct.  It's also an admission that your statement about a Joule Thief being an RLC circuit is totally wrong.  It's also an admission that you went whackadoo a while back making crazy arguments about the regenerative cycle that made no sense, especially the picofarad nonsense.  Just more Brad stream-of-consciousness electronics.

MileHigh

[tinman]

 author=MileHigh link=topic=8341.msg474950#msg474950 date=1455967570]

No guts to apologize for posting a schematic in the thread that doesn't match the circuit in the clip, twice.

MH
I apologize.
I was unaware that you cannot understand the english language,nor can associate a given schematic posted on the video explaining as to what exact circuit the video and results were all about. When one uses a pot on the base of a transistor in a circuit,do you always ask them to give you the exact value the pot was set at,at say the two minute mark into the presentation of the device running?.

I know everything about the SSG, you are just having a pissing competition with yourself.  Put the bloody dots on your transformer schematics like any self-respecting experimenter would do.  New is the new new, who would have none?

And yet you are the only one that had a problem with the circuit--no bloody dot's.
Lidmotor had it replicated within a day--still no bloody dots on the transformer.

My knew crystal ball is telling me something much different than your old crystal ball.

Lol. You have no new crystal ball MH--your set in stone-wrong or right.
You even admitted to this in a thread at OUR,in regards to the TPU. Im guessing you have debunked that one too ?.

Wow, the supply voltage was low.  Makes you wonder how much the current would be and how much of a price you would have to pay in wasted energy if the supply voltage was 1.5 volts, doesn't it?  I seriously doubt that occurred to you.

Well i have never seen a nearly depleted 1.5 volt battery with 1.5 volts across it before
A clear example that you are stuck,and really have no idea as to what people want JT's for.
Perhaps go and check out the video Pirate posted not long back here,and see all those LED's light up with a nearly dead 1.5 volt battery.
I think your in the wrong thread.

After you are prodded you post a proper schematic.  In the future you need to prod yourself beforehand to post a proper schematic.

Lets take my incorrect schematic with the 10 VR.
My circuit i test has that VR in it. Tell us all here what my pot was set at during the test ?.
Point us toward a post in a thread where a similar thing has happened,and where you ask that experimenter -->what value was your VR set at when you did the test run.
I could have wound that pot up and down during the test,but you would have no way of knowing as to what the resistance value was during the VR sweep. Now,if you had of watch the video carefully,then there is no way in hell you could miss the near full size A4 schematic drawn in large black marker pen-->but some how you did.
Both circuit's are correct for the test MH,i had the pot turned down to .1 of an ohm--how's them for apples

I will take your complete and total silence about how a Joule Thief normally operates as an admission that I was correct.

MH
You dont even know what a JT is most commonly used for,so how do you think you could ever present a correct explanation as to how it is working.

 

It's also an admission that your statement about a Joule Thief being an RLC circuit is totally wrong.  It's also an admission that you went whackadoo a while back making crazy arguments about the regenerative cycle that made no sense, especially the picofarad nonsense.  Just more Brad stream-of-consciousness electronics.

And the cool joule JT works just fine.
There was also my last video where i showed two LEDs being lit from the ground rail and steel laminated isolated core of the stator. Lot;s of C there MH.
So junction capacitance plays no part in it hey MH. Well go check out rise and fall times associated with that junction capacitance of some transistors. Dose this not play a part in at what frequencies different setups will oscillate at?.
Sorry MH,it is there,and you cannot remove it. Like i said,it is a small value of C,but it is there,and so the JT circuit is an LRC circuit.


Brad

[tinman]

@ Brad

I can't help but point out here, that he skillfully avoided my question as to whether or not he owned one....

I doubt it.
MH has all the answers--there in the books-he needs no JT.
I think i saw him make an electromagnet once--some copper wire rapped around a nail or bolt. Was long ago,so im not sure.

Brad

[tinman]

I am trembling in my tracks but I will answer your question:  No I don't "own" a Joule Thief and never have and never will.

Think about all of the questions and issues that I raised with you that you "skillfully avoided."

Ha ha ha - busted.

Brad:  No to the competition, but you already knew the answer to that question, it's just theater on your part.  I understand Bedini motors inside-out, never built one, just more theater on your part.

Same thing for you, think about all of the questions and issues that I raised with you that you "skillfully avoided."

MileHigh

finding LED's that had the same internal resistance

Ha ha ha - busted.

Something wrong with that statement MH ?.

[MileHigh]

Well my point has been made in this thread.

Two weeks ago people were talking about how a Joule Thief runs like they were from another planet - Planet Bizarro.  And now people understand how a Joule Thief actually works, they understand how its operating frequency is determined, and they understand how it has absolutely nothing to to with resonance at all.

After all, this is like a circuit with five components and it should be understood.  But of course there was a huge amount of push-back and it was a total slog to get these basic concepts across.  It reminds me a bit of EMJunkie and the coils discussion.  I called his bluff and asked him how a circuit worked that consisted of only two components, a voltage source and a coil, and was unable to answer the question after he was talking about coils for months.  It just shows how easy it is for people out there in YouTube land and elsewhere to deceive people that want to believe.

The Joule Thief in its normal operating mode is understood.  What happens when a Joule Thief changes operating mode at very low voltages is not understood, and it will be up to the people on this thread if they want to pursue that investigation at all.

Magluvin now has a sine wave in his setup running at about 900 kHz.  There is no significance to it because almost all signals in circuits turn into sine waves at higher frequencies due to low-pass filtering inherent in the setups.  I wish him luck but I am not counting any chickens.

Brad:

Your sarcasm about the incorrect schematic is misplaced.  All experimenters should do that otherwise you end up with mass confusion.  Look at your push-back on the question of the dots for the transformer.  It's not the fact that in this case it was not to difficult to discern, in other schematics it will be difficult to discern.  It's all about the principle of the thing and good practices.  Shame on you for such a sucky attitude - put on the bloody dots.

You have never seen a depleted battery at 1.5 volts?  How about I interrupt your stream of consciousness with some reality:  Lots of people will pop in a fresh or slightly used battery in their Joule Thieves.  It's supposed to be designed to give you decent performance over a voltage range, not just at a certain low voltage.  Welcome to the real world.

I didn't miss the schematic in your clip - stop pissing.  I was actually shocked to see a schematic in your clip and I should have remembered that memorable event. What I did do was get thrown off a few days later when you posted a schematic that did not match what transpired in your clip and I commented on that incorrect schematic.  Work on developing some effective communication skills for your audience.

You dont even know what a JT is most commonly used for,so how do you think you could ever present a correct explanation as to how it is working.

More pissing.  I just did and I practically has to pound it into your head and now you finally understand how one works.  You are welcome.

Like i said,it is a small value of C,but it is there,and so the JT circuit is an LRC circuit.

ROTFLMAO, you are not at the point in your understanding where you can properly name a circuit by its type.  I am not going to try again because there are other issues at play which result in you making that foolish statement.

MileHigh