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Author Topic: Simple PWM  (Read 25486 times)

rtsurfer

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Simple PWM
« on: March 07, 2008, 03:22:34 AM »
I have just finished my Smacks Booster and find that once it warms up it gets very power hungry. It works great but it took out a 30a fuse.

I have been reading and I have not found one simple PWM I can make in a few hours to keep the unit under control.

SO you tek guys help me out here. I need to make this PWM ASAP using radio shack parts.

Where can I get a drawing? I do not want more hten 15amps to this thing.

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readyakira

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Re: Simple PWM
« Reply #1 on: March 07, 2008, 04:00:10 AM »
Good luck building one thru radio shack.  Your better off getting parts from digikey online.  At least that way you have a good chance of getting all the parts you need.  Chemelec over at oupower seems to have some decent circuits I have used em with success so far.  I am now in process of seeing if he will make me a single board with all the circuits I need from him.  I know he can supply you with the PCB's but I am still in process of discussing custom boards. 
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rtsurfer

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Re: Simple PWM
« Reply #2 on: March 07, 2008, 04:12:50 AM »
I just got parts in front DK for the EFIE. Only problem is the circuit was designed for 2 O2 sensors and I have 3 in my car.

But again I need something for this weekends install and the later build up a complete box for both the EFIE and the PWM
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readyakira

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Re: Simple PWM
« Reply #3 on: March 07, 2008, 01:43:46 PM »
People say the one behind the catalytic converter can be ignored.  It only moitors the performance of the converter.
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rtsurfer

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Re: Simple PWM
« Reply #4 on: March 07, 2008, 01:50:35 PM »
Ok now what about a regulator or PWM to stop the excessive drain.

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readyakira

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Re: Simple PWM
« Reply #5 on: March 07, 2008, 10:47:12 PM »
I talked to Gary today and he is not going to be supplying the EFIE's much longer.  He will however keep supplying the simple PWM circuit he has since those are used for controling DC motors as well.  Of course that don't mean that if you have the talent to make an electronics board that you can't use the schematics and make your own.
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mv122

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Re: Simple PWM
« Reply #6 on: March 08, 2008, 12:32:46 AM »
this is what i use to control my cell.
http://www.bakatronics.com/shop/item.aspx?itemid=581
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rtsurfer

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Re: Simple PWM
« Reply #7 on: March 08, 2008, 12:50:25 AM »
Quote from: readyakira on March 07, 2008, 10:47:12 PM
I talked to Gary today and he is not going to be supplying the EFIE's much longer.  He will however keep supplying the simple PWM circuit he has since those are used for controling DC motors as well.  Of course that don't mean that if you have the talent to make an electronics board that you can't use the schematics and make your own.

I have the parts to build th EFIE already. It will not make a difference if I do not have a PWM to run the unit. WHy will he no longer make the EFIE?

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rtsurfer

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Re: Simple PWM
« Reply #8 on: March 08, 2008, 12:51:29 AM »
Quote from: mv122 on March 08, 2008, 12:32:46 AM
this is what i use to control my cell.
http://www.bakatronics.com/shop/item.aspx?itemid=581

How long have you been using it. It looks like what I am needing so I just may order it.

Thanks.
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mv122

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Re: Simple PWM
« Reply #9 on: March 08, 2008, 01:47:43 AM »
for a little over a week with no problems
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readyakira

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Re: Simple PWM
« Reply #10 on: March 08, 2008, 03:49:18 AM »
I think he had alot of children expecting outrageous gains and they either did not install and use it correctly or had no idea what they could actually expect to get for savings in reality.  So after alot of complaints he decided it is not worth his time.  That combined with the fact I don't think he actually likes the idea of fooling the computer in a car like that since you could easily screw an engine up doing something like that not knowing what you are doing.
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rickter

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Re: Simple PWM
« Reply #11 on: March 08, 2008, 04:12:26 PM »
Do any of you know if an oxyisolator will do the same thing as curcuit to control the computer? they are sure a lot cheaper and easyer mto install
Rickter
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ramset

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Re: Simple PWM
« Reply #12 on: March 08, 2008, 04:30:45 PM »
RTS  regarding your amperage draw I believe smack talks about limiting that in the electrolyte while tuning cell for max hydroxy min amps/heat.  instead of pulsing on off on off etc.to lower amps /hydroxy production tune the cell, your electrolyte sounds to strong Chet
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rtsurfer

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Re: Simple PWM
« Reply #13 on: March 08, 2008, 04:45:56 PM »
Quote from: ramset on March 08, 2008, 04:30:45 PM
RTS  regarding your amperage draw I believe smack talks about limiting that in the electrolyte while tuning cell for max hydroxy min amps/heat.  instead of pulsing on off on off etc.to lower amps /hydroxy production tune the cell, your electrolyte sounds to strong Chet

Thanks I am on that today. But still want to regulate the entire unit.

Need to get amp new meter first
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ramset

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Re: Simple PWM
« Reply #14 on: March 08, 2008, 05:02:10 PM »
Strongly recommend you put an amp meter in sight just to monitor your cell for max efficiency and a little safety   Please explain why you want to pulse a smack cell
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