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Author Topic: 12V 60A car battery , maybe dead?  (Read 197403 times)

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #90 on: March 11, 2013, 01:14:55 AM »
Hi
I put a heat sink on the transistors.
Can not find NTE2354, but I find that some of BU transistors are alike and I can buy them.
(2508A, 2508AF, 2520D, 2520DF, 2525A what do you think abot them)
I dont have osciloscope.
What does it mean "swapping"?
Transistors 2N3055 are OK. They are not from same manufacturer so they might not be the same quality.
Battery is 12V/6Ah.What is the limit for this carger?

zeljkoc,

Use 1 transistor onto a heat sink:

BU2508A        OK to use in your circuit, recommended. :-)
BU2508AF      OK to use in your circuit. :-)
BU2520D        NOT OK to use. :-(
BU2520DF      NOT OK to use. :-(
BU2525A        OK to use in your circuit, recommended. :-)

Swapping means disconnecting the two wires on the trigger coil (L1, the one connected to the BASE of the transistor etc.)
and then put the other ends of the wires back into the circuit again. If the wires on the trigger coil is wrongly
connected, then all you get is a positive voltage on the base of the transistor, turning it on, transistor heats up, but
no oscillations in the circuit. No oscillations = No output to charge a battery.

The 12V/6Ah battery is OK to be charged on this circuit. The circuit will charge ANY lead acid battery, but
the larger (bigger) the battery, the longer time it will take to charge.

I have updated the drawing for you and attached the drawing here.

GL.

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #90 on: March 11, 2013, 01:14:55 AM »

Offline zeljkoc

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Re: 12V 60A car battery , maybe dead?
« Reply #91 on: March 11, 2013, 10:19:44 PM »
Groundloop,
The minute I send a reply I realize what do you mean when you wrote "swapping". When I read Rodelu`s post I was sure what to do. I change positions of the ends of L1 and it`s working.
Thank you.
2N3055 is slow but it works. When I replace him with BU2508A charger will run much efficiently.
Something strange happened when I connect power supply and start to rise input voltage. Everything was OK till input voltage reach about 5.4 V and current 0.4 A. Afther that voltage jump to 7 V, current drop to 0.15 A and charger stop. I turn off charger and start again but it repeats so I leave charger at 5.4 V to see does it work.
Thank you for drawing update and suggestions.
                                                                                            zeljkoc

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #92 on: March 11, 2013, 10:48:53 PM »
Groundloop,
The minute I send a reply I realize what do you mean when you wrote "swapping". When I read Rodelu`s post I was sure what to do. I change positions of the ends of L1 and it`s working.
Thank you.
2N3055 is slow but it works. When I replace him with BU2508A charger will run much efficiently.
Something strange happened when I connect power supply and start to rise input voltage. Everything was OK till input voltage reach about 5.4 V and current 0.4 A. Afther that voltage jump to 7 V, current drop to 0.15 A and charger stop. I turn off charger and start again but it repeats so I leave charger at 5.4 V to see does it work.
Thank you for drawing update and suggestions.
                                                                                            zeljkoc

zeljkoc,

The oscillator stops at higher input voltage because the bias voltage to the base of the transistor
will keep the transistor conducting current and the pulse from the trigger coil is too small to switch
the transistor. There are several ways to avoid this. 1 - Avoid higher input voltages. 2 - Increase the
resistance of the resistor. 3 - Increase the number of turns on both coils. 4 - Use a bigger Ferrite core.

GL.

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #92 on: March 11, 2013, 10:48:53 PM »
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Offline zeljkoc

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Re: 12V 60A car battery , maybe dead?
« Reply #93 on: March 12, 2013, 05:45:39 PM »
Groundloop
With BU2508A I can reach 12V of input voltage and 0.25A of input current without problem. 2N3055 is realy slow.

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #94 on: March 13, 2013, 03:21:18 PM »
Groundloop
With BU2508A I can reach 12V of input voltage and 0.25A of input current without problem. 2N3055 is realy slow.

zeljkoc,

OK. Good work. :-)

GL.

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #94 on: March 13, 2013, 03:21:18 PM »
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Offline guruji

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Re: 12V 60A car battery , maybe dead?
« Reply #95 on: July 31, 2013, 09:23:42 PM »
Hi GL thanks for this circuit. I 've built this with a 150nf cap and a 1k pot on about 100T coils. Transistor d13009.
No success yet.
Any help please?

Offline guruji

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Re: 12V 60A car battery , maybe dead?
« Reply #96 on: August 01, 2013, 08:51:52 PM »
Ok found the fault working now :)
Thanks

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #96 on: August 01, 2013, 08:51:52 PM »
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Offline seanK

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Re: Scaling up the circuit
« Reply #97 on: October 10, 2013, 12:38:37 PM »
Hi GroundLoop

I have played with this circuit a while ago and it seemed to work well for small NiMh batteries I had.
I was wondering what would need to be scaled up to work on large capacity batteries (i.e. 100+ah) ?

Sean

Offline Groundloop

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Re: Scaling up the circuit
« Reply #98 on: October 10, 2013, 07:24:05 PM »
Hi GroundLoop

I have played with this circuit a while ago and it seemed to work well for small NiMh batteries I had.
I was wondering what would need to be scaled up to work on large capacity batteries (i.e. 100+ah) ?

Sean

Sean,

The circuit will work on larger batteries also.
You just need to use a regular battery charger after the circuit has
removed the sulphate in the the batteries. I have not tried to scale up
this circuit, so I do not have any good advice on how to do that.
Maybe larger current capacity transistor? Fewer turns on the coil with
thicker copper wire? More bias current to the base of the transistor?
Etc..........

GL.

Free Energy | searching for free energy and discussing free energy

Re: Scaling up the circuit
« Reply #98 on: October 10, 2013, 07:24:05 PM »
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Offline seanK

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Re: 12V 60A car battery , maybe dead?
« Reply #99 on: October 11, 2013, 07:57:47 AM »
Thanks for your reply GL,

I will try your suggestions and update the post later.
Thanks again
Sean

Offline Richdes

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Re: 12V 60A car battery , maybe dead?
« Reply #100 on: January 08, 2014, 02:36:40 AM »
Hello everybody in special to Groundloop this is my first post here an after read the complete post (12V 60A car battery , maybe dead?) I have decide go for the first circuit with air core but I Just I have #14 wire Wich is 1.6mm Is ok for air core or not? and the transistor what I have is 2sc4060 almost the same of BUX80 only different in his emitter base voltage BUX80 is (Veb)10v and 2sc4060 (Veb)7v I thin I need with this transistor 6v from input . Thanks a lottttt  I Wait for your advices and experience

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #100 on: January 08, 2014, 02:36:40 AM »
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Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #101 on: January 08, 2014, 01:42:35 PM »
Hello everybody in special to Groundloop this is my first post here an after read the complete post (12V 60A car battery , maybe dead?) I have decide go for the first circuit with air core but I Just I have #14 wire Wich is 1.6mm Is ok for air core or not? and the transistor what I have is 2sc4060 almost the same of BUX80 only different in his emitter base voltage BUX80 is (Veb)10v and 2sc4060 (Veb)7v I thin I need with this transistor 6v from input . Thanks a lottttt  I Wait for your advices and experience

Hi Richdes,

If you look one page back on this thread then you will see the good work on member "Rodelu".
The problem with your 1,6mm wire is that it will be difficult to twist the three wires together
before you wind the air core coil, but it can be done, I guess. The transistor (2SC4060) is OK to use
and you will need a heat sink on the transistor. If you have other questions, feel free to ask.

GL.


Offline Richdes

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Re: 12V 60A car battery , maybe dead?
« Reply #102 on: January 08, 2014, 03:50:53 PM »
Thank you Groundloop for your zoon reply I have made the inductor calculation and with 75 meter 1mm 18#  0d 100mm 75 meters give me an 2 MH of coil inductance and to get the same inductance with 14# and 0d 100mm to get 2MH the calculator has given to me 110 meters instead 75meters with #18 the coil calculator is here http://ekalk.eu/l_es.html tell me if I right or wrong and what about the input vcc with the 2sc4060 I guess 6 o 5v what do you think about it, !do you read my mind when you reply me! . I was planning to coil serpentreal as Rodelu did. The 2sc4060 is a litter faster Than BUX80 and more powerful in current, whith 14# gauge the circuit will be more powerful Don't you Think so?
                                   Best regards

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #103 on: January 08, 2014, 06:52:24 PM »
Thank you Groundloop for your zoon reply I have made the inductor calculation and with 75 meter 1mm 18#  0d 100mm 75 meters give me an 2 MH of coil inductance and to get the same inductance with 14# and 0d 100mm to get 2MH the calculator has given to me 110 meters instead 75meters with #18 the coil calculator is here http://ekalk.eu/l_es.html tell me if I right or wrong and what about the input vcc with the 2sc4060 I guess 6 o 5v what do you think about it, !do you read my mind when you reply me! . I was planning to coil serpentreal as Rodelu did. The 2sc4060 is a litter faster Than BUX80 and more powerful in current, whith 14# gauge the circuit will be more powerful Don't you Think so?
                                   Best regards

Richdes,

You can use A LOT of approximation on the coils because you can adjust the base input feedback.
If you use lesser turn than 200 then it only means you will have less inductance and higher pulse
current through the transistor. You will get approx. 63 meters of copper wire with 200 turns onto
a 100mm plastic tube. (A little more because each layer adds the diameter.) But it is NOT that
important. You can regulate the current usage by the variable resistor AND your maximal input
voltage to the circuit. The though job for you is to twist the copper wires. You probably has to
cut three length (approx. 65 meter) and then manually twist those three wires together. Probably
doing so outdoors with the help of two other persons.

The circuit will run from 1 Volt up to the voltage that you cross the safe operating area of the transistor.
Do NOT run the circuit without any load on the output! Doing that (no load) will kill the transistor
due to over voltage. A safe input voltage is from 1 Volt up to 12 Volt.

I agree that your implementation will give you more output due to the recommended lesser inductance coils.
But it depends on your variable resistor setting and your choice of input voltage. The voltage "spikes" in the
coil must not be higher than 600 Volt for your transistor. But the important issue here is to get those "spikes"
into the load and dissipate them there to keep the transistor safe.

GL.

Offline Richdes

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Re: 12V 60A car battery , maybe dead?
« Reply #104 on: January 18, 2014, 03:30:51 PM »
Hi Groundloop I m here again I was busy for a while but  yesterday I have made my coil with #14 gauge, as you told me: !was difficult but not impossible! and I could did it this is my first trifilar coil 200 turns of #14 gauge twisted together and just waiting for the BYV29 that are on the way. I m planning to make put a 5w 1k resistor on the output circuit to avoid to damage the transistor by this way the circuit will never run without a small load to avoid high spikes. what do you think about it? I have another idea if the circuit runs so far so good as I expect I want to make five coils and five circuits connecting all outputs in series to desulphate 60v battery bank.What do you think about it? Could it be done?.
  Best regards Groundloop all your posts are well explained

 

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