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Author Topic: Bendini motor to run itself  (Read 41735 times)

chuckage

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Bendini motor to run itself
« on: May 29, 2008, 03:23:50 PM »
I don't know much about the bendini motor, so please tell me if I'm wrong and help me understand.
If the bendini motor can put out more power then it takes to run, then why cant you connect it to itself and have it run off it's own power and still charge something else?

forest

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Re: Bendini motor to run itself
« Reply #1 on: June 02, 2008, 12:24:24 PM »
Good question.I would refine it further : why not charging discharged battery while powering the circuit with the same one ? I bet a discharged battery even at 11V would have enough power to turn wheel ...

I think it can be done but amount of RE generated must be many times larger.

pinestone

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Re: Bendini motor to run itself
« Reply #2 on: November 20, 2008, 05:02:33 PM »
Good question.I would refine it further : why not charging discharged battery while powering the circuit with the same one ? I bet a discharged battery even at 11V would have enough power to turn wheel ...

I think it can be done but amount of RE generated must be many times larger.

I spoke to my brother-in-law yesterday & he was describing his recently built Bendini motor to me. I could hear it running over the phone...

He is using a typical 9V battery (from a smoke detector) to run the Bendini, and it charges a 12V UPS battery.
I asked him the same question...why can't you take some of the output and feed it back into the input?

Wouldn't a couple of low-voltage drop diodes work for isolation and direction?

bourne

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Re: Bendini motor to run itself
« Reply #3 on: November 20, 2008, 11:15:46 PM »
Hello guys, my first post in a while :)

The quick answer is no you can't charge the battery that is running the machine. Why ? because they simply don't like it.

pinestone

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Re: Bendini motor to run itself
« Reply #4 on: November 21, 2008, 04:29:06 AM »
Hello guys, my first post in a while :)

The quick answer is no you can't charge the battery that is running the machine. Why ? because they simply don't like it.

I can see why you haven't posted for a while. You have nothing useful to say.

Goat

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Re: Bendini motor to run itself
« Reply #5 on: November 21, 2008, 05:44:45 AM »
Hi All

Not sure if this would work but here goes :P Just thinking out loud in case I get hit by the bus of life tomorrow  ;)

One thing I noticed a while back was that whenever I first connect the the SSG circuit I got a jump in voltage on the Charging battery before even starting the wheel. 

I replaced the Charging battery with a run capacitor off a motor (40 MFD 370 VAC start cap) and if I just touch the negative terminal of the Primary battery to complete the SSG circuit I get 28 VDC in the cap.

Now if I start the wheel that 28 VDC will climb to several hundred Volts in a matter of seconds :o but will light the NE2 which is hard on the transistor  :(

Here's the question I've been wondering:

What if you placed a switching circuit that connected completes the ciruit then disconnected the circuit completely and dumped the 28 VDC charge back to the battery, would it charge the battery or would it drain it because of the energy used to bring the cap to 28 VDC?  It does seem to charge it faster than just connecting the battery to the cap because of the BEMF of the circuit somehow.

If that doesn't work would it be possible to increase the timing of this switching circuit and turn the wheel and discharge the cap fast enough not to hurt the transistor while back popping even more voltage to the battery and getting rid of the second battery from the circuit?

I tried this awhile back using a 555 circuit but it was tied to the main battery and blew the circuit because of the high voltage and slow timing and I haven't tried it since because I figured it probably be easier to do it of the wheel using a commutator and brushes, just haven't gone back to it yet.

Regards,
Paul

 


CrazyEwok

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Re: Bendini motor to run itself
« Reply #6 on: November 21, 2008, 06:19:24 AM »
Not delving into Bendini much myself more on the thought of power cycling though (something i do think about :) ) Can i suggest a cross linked Compas relay to switch between batteries so one charges as the other discharges?!? it takes a bit of fiddlings but the theory behind it is if you wind a small coil and have a "floating" magnet it will align itself with the magnetic field... as your battery power drops so does your electro-magnets field then once it realigns to its natural state have a dual connection (both batteries) and the one with the best charge will have the strongest pull on the magnet and it will align with those connections... Cross the output connections with input connections and the batteries should rotate through as they discharge...

Just a thought and because this is no mainstream idea (they just use electronic switches instead, another possibility) But still an idea :)

Goat

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Re: Bendini motor to run itself
« Reply #7 on: November 21, 2008, 07:36:10 AM »
Hi All

Well I decided to try something that I never tried before and although it took some messing around and tweaking on the POT but my Bedini wheel now seems to be running better than ever WITHOUT the charge battery in the circuit  ;D Just a cap as in my last drawing but with a motor in parallel to the cap so that it acts as the switch to back pop the battery through the motor acting as a fast switch  :o 

Although my battery voltage went down from trying several different circuit configurations it's now been running for 30 minutes at better speeds than before and NOT stressing the transistor while maintaining the present battery voltage and running the little motor across the capacitor  ;D

Guess I might have just found a solution to the fast switching solution  ;D

I'll keep you all posted  ;)






Paul-R

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Re: Bendini motor to run itself
« Reply #8 on: November 21, 2008, 03:45:12 PM »
I can see why you haven't posted for a while. You have nothing useful to say.
You are a prat, Pinestone. What Bourne says has been confirmed many times.

I wonder if it is because the driving coil is involved in a hot electricity application
whereas the pickup coil is about cold electricity.

Paul-R

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Re: Bendini motor to run itself
« Reply #9 on: November 21, 2008, 03:48:32 PM »
If the bendini motor can put out more power then it takes to run, then why cant you connect it to itself
and have it run off it's own power and still charge something else?
I wonder if anyone has applied to a Bedini an automated two pole two throw switch (is this right?) to swap the batteries over,
on the fly, every ten minutes.
Paul.

nightlife

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Re: Bendini motor to run itself
« Reply #10 on: November 21, 2008, 04:05:23 PM »
 Paul, there is a video posted on you tube that does what you are asking about except I do not know how long between the switch over, 10 minutes? I believe it was said to run for more then a week. I will try to find it and post a link to it for you.

nightlife

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Re: Bendini motor to run itself
« Reply #11 on: November 21, 2008, 04:08:38 PM »
Paul, the following link is to the video I was talking about. It is the last motor recorded in the video.

http://www.youtube.com/watch?v=Zv1npBgWEbk

Goat

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Re: Bendini motor to run itself
« Reply #12 on: November 21, 2008, 04:57:13 PM »
Hi All

Well the motor/cap combination in my last setup was interesting but it didn't keep the primary battery from slowly draining in my setup  :(

@ Nightlife Thanks for the link to introvertebrate's video  :)

Regards,
Paul

pinestone

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Re: Bendini motor to run itself
« Reply #13 on: November 24, 2008, 04:08:18 AM »
You are a prat, Pinestone. What Bourne says has been confirmed many times.

I wonder if it is because the driving coil is involved in a hot electricity application
whereas the pickup coil is about cold electricity.

I'm not trying to be rude, but "because the battery doesn't like it" is not much of a statement.
If it was an organic battery that had living cells, maybe I could understand his comment, but we are talking about chemicals, and they have no emotions.

If the Bendini outputs more energy than required to run it, then there should be some sort of switching/steering scheme that would allow for the use of one (or no) battery.

AbbaRue

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Re: Bendini motor to run itself
« Reply #14 on: November 24, 2008, 05:23:13 AM »
As I have said before, there are laws of physics and electronics that might prevent a device from running itself.
The answer is to build two identical units and use the output from one to run the other.
If you can get unit #1 to run unit #2 then it should be easy to get unit #2 to run unit #1.
What I'm saying is any device that puts out more energy then you put in must be able to run a duplicate of itself.
Even if it can't run itself, unless the excess energy is in another form, eg. heat.