@all
Well it seems the JT thread at OU has been revived and as you will read there how @MH is still on this Geronimo vendetta against @tinman. Man, @tinman is still keeping his cool so what's the situation.
The thread continues here...
http://overunity.com/8341/joule-thief-101/msg488185/#msg488185OK, so @tinman has posted two circuits as included below. Circuit 1 is as per the initial circuit in my previous post showing how Spin Conveyance sees the exchanges of potential being active at every transistor switch on and off. In that circuit the LED is located parallel to the transistor collector/emitter.
In circuit 2, the LED is located parallel to the L1 coil with the LED pointing to the positive line.
So in essence both circuits are identical except for their LED positions. But with both of these what is so puzzling is that all that is found to be interesting in which circuit will light the LEDS brighter. That, for me, is such a mundane question and wonder what it will explain, what will it show, what will it help in advancing our understanding of this simple little circuit that I have found to be pivotal in so many other ways.
What catches my eye in these two circuits and their very apparent difference in LED position is how the negative potential is playing in these circuits.
We can see that in circuit 1 with the LED having one end directly connected to the negative side of the battery, for this circuit it is more then evident.
So what about circuit 2? If you take the standard method of EE that states that "current flow" occurs from the positive to the negative, when in circuit 2 can the LED receive any negative signal? At transistor open, the positive will permeate L1 and both sides of the LED. At transistor closed, the positive as per standard EE, will simple continue to the negative side of the battery so where is the negative? That is the question that guys need to run down and fully try to understand.
All the rest of this thread with @MH just clobbering @tinman at every turn will teach you nothing. Nothing more then how to remain blind or ignorant to the real effects and the true reasons behind them.
One of the reasons will be evident when you take a battery, a diode and a dc bulb and see how the bulb lights or does not light when you place the diode at the four possible different positions. hehehe
Once yo go through the mental imaging of the circuit you will quickly realize that the animation shown above is the only real logical method for the function of the circuit and this then sheds light on so many other effects.
wattsup