Big Joule Theif

[Mark]

Hi Guys, I just spent about 1 minute putting together a pulse charger that charges a cap to 300 volts in about 30 seconds with a 1.5 volt battery. I'm currently charging a 12 volt car battery with it. I'll let you know what happens. You'll LOL when I tell you how I made it. And it was totally free!

[Jesus M NIeves Oliveras]

There is allso one on page six post #123

Thank you @slayer007.

Maybe you meant #154 on the page 6.

http://www.energeticforum.com/renewable-energy/3609-big-joule-theif-6.html#post45847

If it is that one, you posted it already on jule thief thread at OU forum.

Jesus

[slayer007]

Thank you @lidmotor !
He posted that circuit at overumity forum.

Jesus

There is allso one on page six post #123

[Jesus M NIeves Oliveras]

...
@Jesus----Slayer has posted the circuit I am using already a ways back on this tread. The 555 timer part is not refined yet and is not posted. Paul (kubikop) is the person working the hardest on this and you can follow his progress on Youtube.

Lidmotor

Thank you @lidmotor !
He posted that circuit at overumity forum.

Jesus

[slayer007]

I made it finally!

~19 turns 0.7mm
~20 turns 0.65mm
~370 turns 0.3 mm

on a PSU ferrite transformer (salvaged)

It runs off a D sized 1.2V accu

I used MPSA06 over a TIP35C (gets warm on work)

I shunted the TIP35C's collector to emitter with a small neon bulb

I shunted the MPSA06's emitter to base with a 1N4448 diode

1K resistor to MPS's base

(+) to common primary & triger

(-) to TIP's emitter leg

and 'buz'

the I soldered a neon light (20cm and 30cm long ones) to the tertiary (370 turn) winding

It shines - the smaller is brighter :-)

it works (!) off a 1.2 battery

the spike on the MPS is about 50V (C-E)

over the TIP its about 80V

and over the neon rod it's about 600V

while drawing (RMS) 537 ... 500 mA off said cell

now to see:
1. how many can we use and maintain this glow?
2. is it more efficient to use LEDs instead neon light?
3. Can we make it more bright and still lower the cost?

Slayer007:

nice project

anyone cares for spice model?

Congratulations SteveC

It sounds like your having very good results.

Yes LED's are a LOT more efficient.
You can light quite a few led's off your setup.

When you first try it have your JT turned all the way down.
Then turn it up slowly till your lights get as bright as you want them.

That way you wont burn out your led's.

I had mine lighting ten led's turned all the way down and it ran for three days off one AA.
It was using under 10Ma and the voltage in the battery only went down from 1.27 to 1.23 after running for three days.

The lights were very dimm because it was down all the way.
But it would still light the room up at night enought to see where you was going.

I would allso recommend doing as Lidmotor and Kubikop are doing and use the 555 with it.
That would make it a lot more efficient

[Xenomorph]

@StevanC:

You have found a way to simulate a joule thief in SPICE ???
Then i DO care about it
But maybe that`s not what you have meant.
I think the BEMF would be disregarded by Spice as much as i have experimented with transformers
in spice.
And congrats for your replication!
For some reason my secondary voltage is way too low as it should be with 440 windings, i will
try a different core and different wire now.

[Lidmotor]

Lidmotor using wrong 555

@StevanC:
Don`t forget that the strength of this circuit is its energy recovery possibilities.

He could try to run the 555 off a supercap charged up by his peltier or BEMF during operation, then the 555 power consumption does not matter.

I am using 555s for Joule thief circuits that have a very Low Power Consumption
1 mW Typ at VDD = 5 V and Single-Supply Operation From 2 V to 15 V
If anyone cares (maybe Lidmotor), it`s Texas Instruments Model TLC555 (NOT NE 555 !)
We are talking about an IDD Supply current of 250 MICRO-Amps (!).
The peltier might be able to reach that current value alone.

Great finding Lidmotor and thanks to Slayer007 for the basic circuit !

@ Everyone-----I am using a NE555 chip in the video because I had one on hand but it is the wrong one to use here. TLC555 is the correct one and Paul is using that one already. You are right about that power savings being eaten up by the timer circuit if it uses too much to turn the circuit on and off. When I get a TLC555 I will redo the circuit. The charging part of course is diminished by the reduced on time but the hope is that the total energy consumed will be less. Tuning is a real issue to get the most light for the least power. Get it wrong and you defeat the purpose.

@Jesus----Slayer has posted the circuit I am using already a ways back on this tread. The 555 timer part is not refined yet and is not posted. Paul (kubikop) is the person working the hardest on this and you can follow his progress on Youtube.

Lidmotor

[StevanC]

Succesfull replication report:

I made it finally!

~19 turns 0.7mm
~20 turns 0.65mm
~370 turns 0.3 mm

on a PSU ferrite transformer (salvaged)

It runs off a D sized 1.2V accu

I used MPSA06 over a TIP35C (gets warm on work)

I shunted the TIP35C's collector to emitter with a small neon bulb

I shunted the MPSA06's emitter to base with a 1N4448 diode

1K resistor to MPS's base

(+) to common primary & triger

(-) to TIP's emitter leg

and 'buz'

the I soldered a neon light (20cm and 30cm long ones) to the tertiary (370 turn) winding

It shines - the smaller is brighter :-)

it works (!) off a 1.2 battery

the spike on the MPS is about 50V (C-E)

over the TIP its about 80V

and over the neon rod it's about 600V

while drawing (RMS) 537 ... 500 mA off said cell

now to see:
1. how many can we use and maintain this glow?
2. is it more efficient to use LEDs instead neon light?
3. Can we make it more bright and still lower the cost?

Slayer007:

nice project

anyone cares for spice model?

[StevanC]

@StevanC:
Don`t forget that the strength of this circuit is its energy recovery possibilities.

He could try to run the 555 off a supercap charged up by his peltier or BEMF during operation, then the 555 power consumption does not matter.

I am using 555s for Joule thief circuits that have a very Low Power Consumption
1 mW Typ at VDD = 5 V and Single-Supply Operation From 2 V to 15 V
If anyone cares (maybe Lidmotor), it`s Texas Instruments Model TLC555 (NOT NE 555 !)
We are talking about an IDD Supply current of 250 MICRO-Amps (!).
The peltier might be able to reach that current value alone.

Great finding Lidmotor and thanks to Slayer007 for the basic circuit !

1. I understand the recovery schema i recovered 66% as i stated earlier?

2. there are caps that simply recover to 0.5V or more each time after a dead-short.

3. That TLC555 sounds 'wow!', beats me how You can use it from AA battery?
form a diode dumped cap (off the 2N2222 or 2N3055?) sure looks promissing to have it @1mW ;-) how much can it source at 1mW - enough to drive a mosfet, but hardly a low RDSon one? (need 4V at least?)


Peltier? yes it could reach it, but at what potential :-)?

[Jesus M NIeves Oliveras]

I put a 555 timer on Slayer's 2" toroid flourescent bulb circuit and it worked. This is what Paul (Kubikop) has been working hard on and I had to try it----Pulse the JT and only run it part of the time to save power. He figured that 60 to 100Htz would do it and it did. Your eye can't tell that the power is being turned off part of the time. It is a circuit within a circuit. Paul has done all the research on this and the credit for it is his. Tests need to be done to get it dialed in right but here is the idea:

YouTube - Kubikop's 555 timer pulsed Joule Thief light

Lidmotor

Hi!

Pardon me for interrupting here with my questions.

Can you post the circuit of the replication on the video.
You know. I can read and write english, but when it comes to understand it while spoken, I cant catch it well.

Thanks in advance.

Jesus

[Xenomorph]

Power consumption considerations

@StevanC:
Don`t forget that the strength of this circuit is its energy recovery possibilities.

He could try to run the 555 off a supercap charged up by his peltier or BEMF during operation, then the 555 power consumption does not matter.

I am using 555s for Joule thief circuits that have a very Low Power Consumption
1 mW Typ at VDD = 5 V and Single-Supply Operation From 2 V to 15 V
If anyone cares (maybe Lidmotor), it`s Texas Instruments Model TLC555 (NOT NE 555 !)
We are talking about an IDD Supply current of 250 MICRO-Amps (!).
The peltier might be able to reach that current value alone.

Great finding Lidmotor and thanks to Slayer007 for the basic circuit !

[StevanC]

I put a 555 timer on Slayer's 2" toroid flourescent bulb circuit and it worked. This is what Paul (Kubikop) has been working hard on and I had to try it----Pulse the JT and only run it part of the time to save power. He figured that 60 to 100Htz would do it and it did. Your eye can't tell that the power is being turned off part of the time. It is a circuit within a circuit. Paul has done all the research on this and the credit for it is his. Tests need to be done to get it dialed in right but here is the idea:

YouTube - Kubikop's 555 timer pulsed Joule Thief light

Lidmotor

Care has to be taken for the 555 to pay off:

If the 555 is using more power than the save for the lesser duty cycle is...

So, my guess is 30% or less on time?

my LED JT draws 50 mA with full recovery on only 3 LEDs?
witout recovery whole 150mA

And no mention of a 555 in sight?

That makes a 555 can draw 50mA max to be of any use?

its a narrow path there IMHO?

Today i will fire up (hopefully) my 1st HV JT

can't wait

[slayer007]

@Lidmotor

Thats a very good idea save more on power.

I was thinking some thing like that but using another JT.

Very Nice Lidmotor & Kubikop

[Lidmotor]

555 timer pulsed JT circuit----Kubikop's great idea

I put a 555 timer on Slayer's 2" toroid flourescent bulb circuit and it worked. This is what Paul (Kubikop) has been working hard on and I had to try it----Pulse the JT and only run it part of the time to save power. He figured that 60 to 100Htz would do it and it did. Your eye can't tell that the power is being turned off part of the time. It is a circuit within a circuit. Paul has done all the research on this and the credit for it is his. Tests need to be done to get it dialed in right but here is the idea:

YouTube - Kubikop's 555 timer pulsed Joule Thief light

Lidmotor

[StevanC]

I've done that with my bedini. If you do it make sure that you have a cap across the primary. And no battery is indestructible. Draw it too low or hit it with too high of a voltage and poof it's gone.

according to Bedini (and he seems to be right?) the capacitor kills the radiant.

If we want to put "positive" energy to the primary (powering battery) we should "capture and dump" - with a CiS and a switch (SCR+neon, SCR+diode, BJT+555,...)

And if those _current_ spikes off the capacitor might kill any battery (seen that)...

But how does the NiCd chem. handle the RE compared to lead-acid?

I'm about to try to find out...
;-)