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Author Topic: Feedback To Source  (Read 387308 times)

nievesoliveras

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Re: Feedback To Source
« Reply #195 on: January 29, 2009, 12:46:28 PM »
@ Jesus:

Look at it this way.  If you fried the transistor it means you are getting TOO MUCH power fed back into your circuit.  With my knowledge being at a novice level in electronics, my guess is that you either need a heavier duty transistor or a larger resistor in line to protect the transistor.  So, (again I am guessing here) when your motor ran for just those few turns, it made enough power to burn up you transistor meaning to me that this is the direction you were looking for.

In other words, I see this as an encouraging accident, not a set back.  But, I understand about the expense part.  Maybe scale everything down and work with lower input energy?

Best of luck to you.  Whatever you do, do not give up.

Bill

Thank you @pirate.
You are always there when somebody needs encouragement.

The thing that bothers me most is the shipping and handling of those parts. Maybe the part cost $3.50, but the shipping and handling goes up to $22.00, then the cost it is not $3.50 anymore. Anyway I will keep experimenting and learning on the process and each time I can, I will buy the parts I will need most in advance and all at the same time so to lower the shipping costs.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #196 on: January 29, 2009, 12:54:17 PM »
@all
I did redo the circuit with the bad connection corrected and the circuit did not blow up again.
The sad thing is that it does not give any feed back to the source.

Then I made the new circuit shown here and the circuit did not blow either. But again it did not give any feedback to the source.

While I was doing this tests, there was a complete blackout on the block. At that moment I thought that if it would have been a national emergency, I was not prepared with the electricity needed for the ocassion and its respective recharge system.

So I need to study a lot more to see if I can accomplish my goal. Or just take it easy and if it is meant to be it will be.

Jesus


nievesoliveras

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Re: Feedback To Source
« Reply #197 on: January 30, 2009, 01:42:40 PM »
@all

This feedback to the source charge is very elusive. I have not been able to get it. Others claim they have.
I will try @mvmcman circuit configuration this time to see if I can close the loop with it.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #198 on: January 30, 2009, 03:09:45 PM »
@all

The schematic on post #196 should be like this one. That one the transistor is not the one I used. I used NPN and drawed a PNP.

Jesus

xenomorphlabs

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Re: Feedback To Source
« Reply #199 on: January 30, 2009, 03:46:34 PM »
@Jesus : I appreciate your efforts to succeed in feeding back to the source.
As i understand you want to amplify the voltage from 1.5V to 12V using a transistor.
Just for your consideration (if you haven`t already thought about it), you might wanna
look into using voltage doublers : http://en.wikipedia.org/wiki/Voltage_doubler
So using 3 in a row will get you 12 V, with hope that the amperage will still be sufficient.
About the frying of the transistor.
Have you tried 2N3055s? They are really tough and can stand some beating.
Have never managed to fry one until now hehe.
Good luck with your further efforts!
Xenomorph

nievesoliveras

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Re: Feedback To Source
« Reply #200 on: January 30, 2009, 08:47:12 PM »
@Jesus : I appreciate your efforts to succeed in feeding back to the source.
As i understand you want to amplify the voltage from 1.5V to 12V using a transistor.
What I want with the transistor is to pulse the output from the rectifier to see if the battery accepts the recharge.
I have failed though.

Quote
Just for your consideration (if you haven`t already thought about it), you might wanna
look into using voltage doublers : http://en.wikipedia.org/wiki/Voltage_doubler
So using 3 in a row will get you 12 V, with hope that the amperage will still be sufficient.
There was a circuit already made but it was blown up by high voltage on one experiment I did.
http://www.overunity.com/index.php?topic=6362.msg150028#msg150028

Quote
About the frying of the transistor.
Have you tried 2N3055s? They are really tough and can stand some beating.
Have never managed to fry one until now hehe.
Good luck with your further efforts!
Xenomorph

I usually use Tip3055 but I did not used it this time. I should have.

Thank you!

Jesus


nievesoliveras

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Re: Feedback To Source
« Reply #201 on: January 30, 2009, 09:14:10 PM »
@ all

For everybody's benefit and for future reference here is the edited graphics from wikipedia.

Jesus

gyulasun

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Re: Feedback To Source
« Reply #202 on: January 31, 2009, 12:13:42 AM »
Hi Jesus,

I would like to comment your rectifier circuits a little, it is needed...

The schematic in the lower left corner is in fact a full wave and not a half wave doubler.  See its operation here:
http://www.play-hookey.com/ac_theory/ps_v_multipliers.html

And this brings up the question: then what is the schematic in the upper right corner?  (where the full wave bridge is fed from a center tapped transformer)  While it is true that it gives a double voltage as you show between the outputs points,  normally in this kind of circuit the center tap of the transformer is a reference (zero voltage or ground) point (and it is not connected to the common points of the capacitors, in fact there is only one capacitor at the output of the bridge)  and the positive output and the negative output can supply circuits where a split supply is needed with a + and - polarity with respect to a common ground. And with respect to this ground neither the positive nor the negative output voltage is a doubled value, ok?
For this latter circuit I found this small explanation that sounds ok for me: http://www.powertronix.com/html/body_linear.html   
They call it a dual complementary rectifier which not very common reference to it but exists.

So all in all the most important correction is the circuit in the lower left corner is a full wave rectifier and a doubler..

Regards,  Gyula

nievesoliveras

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Re: Feedback To Source
« Reply #203 on: January 31, 2009, 03:23:45 AM »
Hi Jesus,

I would like to comment your rectifier circuits a little, it is needed...

The schematic in the lower left corner is in fact a full wave and not a half wave doubler.  See its operation here:
http://www.play-hookey.com/ac_theory/ps_v_multipliers.html

I made a composition of the circuits you recomend.
The others were recomended by @xenomorphlabs.

Quote
And this brings up the question: then what is the schematic in the upper right corner?  (where the full wave bridge is fed from a center tapped transformer)  While it is true that it gives a double voltage as you show between the outputs points,  normally in this kind of circuit the center tap of the transformer is a reference (zero voltage or ground) point (and it is not connected to the common points of the capacitors, in fact there is only one capacitor at the output of the bridge)  and the positive output and the negative output can supply circuits where a split supply is needed with a + and - polarity with respect to a common ground. And with respect to this ground neither the positive nor the negative output voltage is a doubled value, ok?
For this latter circuit I found this small explanation that sounds ok for me: http://www.powertronix.com/html/body_linear.html   
They call it a dual complementary rectifier which not very common reference to it but exists.

So all in all the most important correction is the circuit in the lower left corner is a full wave rectifier and a doubler..

Regards,  Gyula

The other group of voltage multipliers or voltage suppliers is included too.

Thank you @gyulasun !

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #204 on: January 31, 2009, 01:52:03 PM »
@all

 I built the circuit using the old jule thief toroid, because I have no new wire at the moment. With a red LED Salvaged from a camera circuit connected from the collector to battery ground, If I connect a 1.5v battery and spin the rotor, the light flashes brightly.
If I connect it between the collector and the emitter, it flashes dimly. By the way the negative output of the rectifier is not connected to the battery ground.

 I think that if I use a 12v battery, I am going to burn everything here. So I will try with a spent 9v battery. This battery has 4v left. When I connected it the LED stayed lighted without spining the rotor.

When I spinned the rotor, the LED began to flash and the battery to go down in voltage. The LED is connected between the collector and the battery negative. I exchanged it with a diode and the battery was drained down when I spinned the rotor.

When I took the diode out and without spinning the rotor, the voltage began to climb from 0.8v now 2.11v If I spinned the rotor the voltage wemt down. This is crazy. I added a 2200uf capacitor an the voltage lowered a little and began to rise without spinning the rotor.

This is not what I was expecting from this circuit.
I was expecting to get feedback to the source and I have not it here.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #205 on: January 31, 2009, 02:07:17 PM »
@all

What this project needs is not a voltage multiplier.
What it needs is a voltage booster in order to step up the 1.5v to 12v.

I had the circuit made but the IC I was using was blown by a test I did that produced a too high voltage spark.

I will post these circuits composition here as a reference of what I need to learn in order to boost the voltage.

Again I have no problem with the dc output voltage from the pulse motor.
The boosted voltage is used to make it run.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #206 on: January 31, 2009, 02:27:15 PM »
@all

I said that what I needed was a booster circuit.
There is this forum member called @jonnydavro who skilfully made a joule thief run a bedini motor.
That is the booster I need to move my pulse motor.

I will post his circuit here for everybody to see and for reference.
The link for his work and topic is:
http://www.overunity.com/index.php?topic=6688.new#new

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #207 on: February 01, 2009, 03:20:49 PM »
@all

I made the pulse motor to run with the joule thief.
Thanks to @jonnydavro's idea.

I did not do it exactly as he did but it works.
But still I have the same problem I had with the LT1073 circuit.

It does not charge the running battery.

So at least I solved the 1.5v booster problem I had.

Jesus

Pirate88179

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Re: Feedback To Source
« Reply #208 on: February 02, 2009, 03:21:37 AM »
Hey, I found this on another topic, thought you might like to see it.  A Bedini motor running of a large cap, no batts.  I think we could add the JT circuit to this and really have something.

http://video.google.com/videoplay?docid=3562588371166049574


Bill

nievesoliveras

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Re: Feedback To Source
« Reply #209 on: February 02, 2009, 01:25:55 PM »
Hey, I found this on another topic, thought you might like to see it.  A Bedini motor running of a large cap, no batts.  I think we could add the JT circuit to this and really have something.

http://video.google.com/videoplay?docid=3562588371166049574


Bill

Thanks @pirate!

I was following that one last year, one of my first experiments with my Imhotep's fan charger was to add a bedini circuit that claimed to be self running. But for me it did not work.
Maybe the one I got was not the real mckoy.

Do you found any circuit for this one?

Jesus