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Author Topic: timing circuit advice  (Read 13210 times)

nathanj99

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timing circuit advice
« on: May 26, 2015, 10:45:52 PM »
Hi

I am after a little advice on timing circuits. I am after a timing circuit to control the timings of the charge and discharge of a capacitor. I was going to use the 555 timer circuit from the SG, until I realised the timer starts running as soon as the main switch is thrown. It is independent of the speed of the wheel. So any change in rpm and the timings will have to be adjusted. Any Ideas of how this can be done with tieing the timing circuit into the actual wheel? I have attached a pic of the circuit I was going to use or see link below.

http://johnbedini.net/john34/Rad+monopole.jpg

Thanks

Nathan

MarkE

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Re: timing circuit advice
« Reply #1 on: May 26, 2015, 10:51:43 PM »
Hi

I am after a little advice on timing circuits. I am after a timing circuit to control the timings of the charge and discharge of a capacitor. I was going to use the 555 timer circuit from the SG, until I realised the timer starts running as soon as the main switch is thrown. It is independent of the speed of the wheel. So any change in rpm and the timings will have to be adjusted. Any Ideas of how this can be done with tieing the timing circuit into the actual wheel? I have attached a pic of the circuit I was going to use or see link below.

http://johnbedini.net/john34/Rad+monopole.jpg

Thanks

Nathan
If you want to make the pulse width inversely proportional to the wheel speed using analog circuits: then use a 555 or other monostable with a fixed width to generate a tachometer voltage, then buffer the tachometer voltage into a voltage to current source connected to the timing capacitor of a second 555 or other monostable.  Alternatively, you can just program an Arduino.

nathanj99

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Re: timing circuit advice
« Reply #2 on: May 26, 2015, 10:57:23 PM »
If you want to make the pulse width inversely proportional to the wheel speed using analog circuits: then use a 555 or other monostable with a fixed width to generate a tachometer voltage, then buffer the tachometer voltage into a voltage to current source connected to the timing capacitor of a second 555 or other monostable.  Alternatively, you can just program an Arduino.

Thanks Mark, although that did go a little over my head :D. Im trying to capture the bemf from the main pulse. I want to capture the bemf in a very small time frame and then pulse it back.


MarkE

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Re: timing circuit advice
« Reply #3 on: May 26, 2015, 11:08:20 PM »
If you want to put all the BEMF energy back into the power supply then you want a full H bridge.  The venerable L298 from ST Micro will work for up to 2A and comfortably into the 12V supply you have, but it needs four diodes.   It is over 30 years old so there are lots and lots of example circuits on the web.

nathanj99

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Re: timing circuit advice
« Reply #4 on: May 27, 2015, 08:52:51 AM »
Oh yes, I have briefly looked at the H bridge before. Do you think it's the right way to go in a OU machine? It looks like there could be a fair amount of wasted energy there?  How would you control the switching?  :)

MarkE

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Re: timing circuit advice
« Reply #5 on: May 27, 2015, 01:42:02 PM »
Oh yes, I have briefly looked at the H bridge before. Do you think it's the right way to go in a OU machine? It looks like there could be a fair amount of wasted energy there?  How would you control the switching?  :)
The chances of getting OU from a Bedini machine are indistinguishable from zero.  That said a good H bridge can be very efficient.  Before I can offer more specific design help I need to know more about what it is that you want to do.

tinman

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Re: timing circuit advice
« Reply #6 on: May 27, 2015, 02:57:18 PM »
Oh yes, I have briefly looked at the H bridge before. Do you think it's the right way to go in a OU machine? It looks like there could be a fair amount of wasted energy there?  How would you control the switching?  :)

I have to ask-where is the OU machine you wish to make this circuit for?

nathanj99

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Re: timing circuit advice
« Reply #7 on: May 27, 2015, 06:57:35 PM »
I have to ask-where is the OU machine you wish to make this circuit for?

Errrrr, in my workshop.

tinman

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Re: timing circuit advice
« Reply #8 on: May 27, 2015, 07:21:18 PM »
Errrrr, in my workshop.

OOhhhh
You have an OU machine in your workshop.
This should be good ;)
May we see a picture of this OU machine?.

MarkE

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Re: timing circuit advice
« Reply #9 on: May 27, 2015, 07:28:52 PM »
The NSA is listening!!!

nathanj99

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Re: timing circuit advice
« Reply #10 on: May 27, 2015, 10:33:10 PM »
Yep, the NSA may be listening. Well the machine is for my own amusement, I'm just building it to see if I can. I have no intention of making money, making electricity etc etc etc. in fact I'm with the NSA on this one. If OU devices suddenly appear in the world there would be chaos, governments would fall, the world would fall apart! We are in a catch 22!, or maybe more appropriately, dammed  if we do, dammed if we don't.  :D

allcanadian

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Re: timing circuit advice
« Reply #11 on: May 27, 2015, 11:19:58 PM »
I like this circuit --http://overunity.com/1868/a-working-radiant-free-energy-system/#.VWY1h9JViko -- by Ossie Callanan called "a working radiant free energy system". You can find the pdf file online which explains everything in detail.


I tested this a long time ago and it is pretty interesting considering how few components are involved and it is light years ahead of the Behoudini setup in my opinion.


AC

nathanj99

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Re: timing circuit advice
« Reply #12 on: May 27, 2015, 11:28:20 PM »
Thank you Allcanadian. I appreciate that. at least not everyone is a idiot like Tinman ;)

tinman

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Re: timing circuit advice
« Reply #13 on: May 29, 2015, 05:30:58 PM »
Thank you Allcanadian. I appreciate that. at least not everyone is a idiot like Tinman ;)

An idiot is some one who thinks they have an OU SSG lol.
You will have no worries with the NSA on this one,although the men in grey coats may be looking for you soon enough lol.

nathanj99

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Re: timing circuit advice
« Reply #14 on: May 29, 2015, 08:11:10 PM »
Timman, I find your comments in this post negative, sarcastic and basically malicious. Just because I have not yet learnt electronics and I am building a machine in my garage you think I will fail. Personally I salute any person who attempts something when the odds are against them. I feel that perhaps bring a member of this forum is not right for you! You have no idea what I am capable of. My area of expertise is molecular genetics, quantum physics and artificial intelligence.

I request that you no longer comment on any of my posts.

Thank you

Nathan